The new BMW 3 Series. Johannesburg Motor Show
- The new BMW 3 Series Sedan extends its lead further in terms of driving dynamics, premium quality and innovative technology.
- The new BMW 3 Series Sedan combines elegance with a driving experience which is unique within the competitive field.
- The extended range of engines and the application of BMW EfficientDynamics measures make the BMW 3 Series the benchmark for sheer driving pleasure in combination with the achievement of exemplary fuel consumption and exhaust emission levels.
- A new front end design, a side view with greater emphasis of the dynamically elongated character line, and a rear section featuring a broader effect due to more detailed lines. New headlamps, rear lights with new contours characteristic of the brand, innovative lighting technology and 3D effects.
- Refinement of the interior trim with selected operating elements in a new design and newly harmonised choice of colours and materials. The characteristic combination of convex and concave surfaces of the exterior is continued in the interior. Ergonomically optimised positioning of the powered windows operating panel on the driver side. New and enlarged storage facilities.
- New generation of the operating system BMW iDrive in conjunction with optional navigation systems: Ergonomically optimised iDrive Controller for function selection and control by means of turning, pressing and tilting movements, enabling the blind operation of buttons on the Controller for fast and intuitive menu selection. Freely programmable functional bookmarks provide even easier operation. Navigation system Professional with extended functions for destination entry, trip planning and map display.
- Newly developed in-line 6-cylinder diesel engine in the BMW 330d: aluminium crankcase, third-generation common rail direct injection with piezo injectors and maximum injection pressure of 1,800 bar, turbocharger with variable turbine geometry. Maximum power output: 180 kW, maximum torque: 520 Nm.
- For the first time, a 7-speed sports automatic transmission with double clutch is available on the models BMW 335i Coupé and BMW 335i Convertible. This is the world’s first 7-speed double clutch transmission designed for high performance engines, shifting gear ratios without interruption of power for unequalled dynamic acceleration, the driver’s choice of fully automated or manual operational modes, a unique combination of the comfort of an automatic transmission with maximum dynamic performance, and further optimised acceleration and fuel consumption figures.
- Comprehensive safety concept with an extremely solid body structure, defined impact distribution paths, selective use of high-strength steels and special deformation elements. Six airbags, 3-point automatically pretensioning belts and headrests for all seats as well as crash-active headrests for the front seats designed to reduce the risk of head injury in the event of a rear-on collision, all fitted as standard.
- Engine types: BMW 335i: in-line 6-cylinder petrol engine with Twin Turbo and direct injection (High Precision Injection), capacity: 2,979 cc, output: 225 kW at 5,800 rpm, max. torque: 400 Nm at 1,300–5,000 rpm, acceleration [0–100 km/h]: 5.6 seconds, maximum speed: 250 km/h, average fuel consumption according to EU: 9.6 litres/100 kilometres, CO2 emissions according to EU: 231 g/km.
- BMW 330i: in-line 6-cylinder-petrol engine, capacity: 2,996 cc, output: 200 kW at 6,650 rpm, max. torque: 315 Nm at 2,750–3,000 rpm, acceleration [0–100 km/h]: 6.2 seconds, maximum speed: 250 km/h, average fuel consumption according to EU: 8,7 litres/100 kilometres , CO2 emissions according to EU: 210 g/km.
- BMW 325i: in-line 6-cylinder-petrol engine, capacity: 2,996 cc, output: 160 kW at 6,500 rpm, max. torque: 250 Nm at 2,750–4,250 rpm, acceleration [0–100 km/h]: 7 seconds, maximum speed: 245 km/h, average fuel consumption according to EU: 8.4 litres/100 kilometres, CO2 emissions according to EU: 203 g/km.
- BMW 320i: in-line 4-cylinder petrol engine, capacity: 1,995 cc, output: 115 kW at 6,400 rpm, max. torque: 200 Nm at 3,600 rpm, acceleration [0–100 km/h]: 9 seconds, maximum speed: 220 km/h, average fuel consumption according to EU: 7.9 litres/100 kilometres, CO2 emissions according to EU: 189 g/km.
- BMW 330d: in-line 6-cylinder-diesel engine with all-aluminium crankcase, third-generation common rail direct injection and turbocharger with variable turbine geometry capacity: 2,993 cc, output: 180 kW at 4,000 rpm, max. torque: 520 Nm at 1,750–3,000 rpm, acceleration [0–100 km/h]: 6.1 seconds, maximum speed: 250 km/h, average fuel consumption according to EU: 6.3 litres/100 kilometres, CO2 emissions according to EU: 167 g/km.
- BMW 320d: 4-cylinder diesel engine with all-aluminium crankcase, third-generation common rail direct injection and turbocharger with variable turbine geometry capacity: 1,995 cc, output: 130 kW at 4,000 rpm, max. torque: 350 Nm at 1,750–3,000 rpm, acceleration [0–100 km/h]: 7.9 seconds, maximum speed: 230 km/h, average fuel consumption according to EU: 5.5 litres/100 kilometres, CO2 emissions according to EU: 147 g/km.
It is the epitome of sporty flair in its segment and for years it has maintained the leading position as the most widely sold premium vehicle in the world. Now the BMW 3 Series sets out to extend its lead even further.
Specific design modifications, further refinements in interior design, the new generation of the optional operating concept BMW iDrive, a revised range of engines and innovations in the areas of drive technology, safety and comfort make the new BMW 3 Series Sedan more alluring than ever before.
With rear-wheel drive, harmonious axle load distribution, outstanding steering precision and highly sophisticated chassis technology, the BMW 3 Series sets unsurpassed standards for driving dynamics in its segment. More than ever before, this unique driving pleasure can now be combined with an awareness of economy and minimised pollutant emissions.
Thanks to BMW EfficientDynamics the new BMW 3 Series achieves significantly lower fuel consumption and exhaust emission levels with each of the engine variations available, than those of any relevant competitors in the premium segment. Parallel to the market launch of the new BMW 3 Series Sedan, a new 7-speed sports automatic double clutch transmission will be presented for both Coupé and Convertible models of the series.
This allows for even better acceleration figures in these models, and combines this added dynamic performance – as compared to the standard 6-speed manual transmission – with the comfort features of an automatic transmission.
The 7-speed sports automatic transmission with double clutch shifts without interrupting the characteristically smooth flow of power to the rear wheels at all.
New design accentuations for a sporty, elegant appearance. With striking design accentuations to the front section, the side perspective and the rear, the dynamic character of the new BMW 3 Series Sedan has been given additional emphasis, while the new BMW 3 Series Touring enhances its sporty, elegant profile with new visual features which are recognisable from all perspectives.
Front section with bold shapes and an emphasis on width. The front view of the Sedan and Touring models of the new BMW 3 Series is characterised by a clear emphasis on vehicle width. The characteristic brand trademark of the double circular headlights is dramatically underscored by tasteful chrome tubes, and their corona rings can now also be used in the BMW 3 Series with optional bi-xenon headlamps as daytime running lights.
The light sources of the direction indicators have a ribbed structure and LED direction indicator lights are installed in conjunction with the optional bi-xenon headlamps. Side view with elegantly elongated lines. Powerfully taut surfaces and striking character lines dominate the side view of the new BMW 3 Series.
The contour edges of the side skirts have been set higher and modelled in a more distinctive fashion. Another new feature is the exterior mirror sporting two distinctive character lines echoing the interplay between the convex and concave shaping of the surfaces. These mirrors also provide an enlarged field of vision.
The rear: sporty and tight with a new lighting design. Greater emphasis of the vehicle’s power and sporty character likewise characterises the rear view of the new BMW 3 Series. To achieve this effect, the rear bumpers, rear lights and luggage compartment handle have been completely redesigned.
The dual section rear lights are now structured according to the characteristic BMW L shape. The two LED rear light clusters and the direction indicators realised using LED technology successfully create a striking, high-quality appearance. The widened track of the new BMW 3 Series especially contributes to its more powerful appearance. Depending on the model, the track of the rear axle has been widened by up to 24 millimetres by means of a new wheel carrier and other modified details. High-quality materials and optimised ergonomics in the interior.
The modern, high-quality interior of the BMW 3 Series has been further enhanced by means of specific adjustments in the selection of materials and the overall surface design. Here the same modern design concept is applied, dominated by convex-concave surfaces, sporty elegance and technology-oriented aesthetic style. Premiere for the new generation of the operating concept BMW iDrive.
The operating system BMW iDrive is available in the new BMW 3 Series for the activation and control of entertainment, information, navigation and telecommunications functions, whether standard or optional. The new generation of iDrive is available in conjunction with the optional navigation system Professional. What’s more, the new iDrive supports multi-mode operation by voice entry.
With the new iDrive generation, BMW extends its lead over comparable systems made by other manufacturers in terms of display quality and intuitive operation. Using the four direct selection buttons grouped around the Controller, it is especially easy to switch spontaneously between CD, radio, telephone and navigation functions.
The functional bookmarks are implemented via three additional buttons. Control Display with high-resolution graphics and variable layout. The new iDrive in the BMW 3 Series is presented on an 8.8-inch Control Display whose dimensions surpass all graphic displays available to date in the automobile field. With its high image resolution it offers significant improvements in the display of detailed graphics.
The structure of the user menu makes it easier to locate desired functions, and for ultimate simplicity all functions controllable by iDrive are listed in the starter menu. Hard drive for audio files and navigation info. The features of the navigation system Professional include a hard drive integrated in the vehicle. This storage medium with a capacity of 80 GB provides fast access to digital maps for navigation purposes and can also be used for an extensive collection of music files.
The system enables music files to be transferred to the hard drive from a CD, MP3 player or USB stick. The new BMW 3 Series: the engine of success for BMW EfficientDynamics. With its optimised engine range, the new BMW 3 Series further extends its leading position in the segment in terms of driving dynamics and economy.
With all engine types, the new BMW 3 Series boasts superior fuel consumption and exhaust emissions levels than any direct competitors of comparable output. Depending on the model-specific configuration, the new BMW 3 Series features the latest measures for increased efficiency.
All petrol and diesel engines available for the new BMW 3 Series represent the state of the art in engine development. What’s more, an extremely wide spectrum of efficiency-promoting measures has been applied within the engine environment so as to further reduce fuel consumption and exhaust emissions. New 6-cylinder diesel engine in the BMW 330d.
In accordance with BMW EfficientDynamics, every new BMW offers increased driving dynamics in combination with reduced fuel consumption and exhaust emissions levels as compared to its respective predecessors. An especially striking example of this is the BMW 330d. Its 3.0 litre all-aluminium engine features third generation common rail injection whose piezo injectors operate at a pressure or up to 1,800 bar, and a turbocharger with variable turbine geometry.
This new diesel engine achieves its maximum output of 180 kW at an engine speed of 4,000 rpm, while its maximum torque of 520 Nm is available from 1,750 to 3,000 rpm. The new BMW 330d accelerates in 6.1 seconds from zero to 100 km/h, its maximum speed is electronically cut off at 250 km/h. The average fuel consumption of the new BMW 330d according to the EU test cycle is 6.3 litres per 100 kilometres, equating to CO2 emissions of 167 grams per kilometre.
Engine selection: the greatest variety and highest level of efficiency in the segment. The ideal combination of driving fun and efficiency also characterises the other engines available for the new BMW 3 Series. Spontaneously responsive, high-torque 6-cylinder and 4-cylinder diesel engines, powerful and high-revving 4-cylinder petrol engine and the 6-cylinder in-line petrol engine well-known for its unique refinement and dynamic power delivery form a portfolio which is unequalled in the segment which the BMW 3 Series dominates.
As one of a number of features which are unique within the competitive field, all 335i petrol engines are fitted with High Precision Injection and all diesel engines combine an all-aluminium crankcase, turbo charging and third generation common rail direct injection. The flagship BMW 335i is especially dynamically capable, powering to 100km/h from rest in just 5.6 seconds!
Superior chassis technology, Active Steering as an option. The new BMW 3 Series has the most sophisticated chassis technology in its segment. At the rear there is a five-link construction which is adapted to the needs of the especially high-power and high-torque engines.
The front axle reflects a unique standard of engineering, featuring a dual-arm tension strut design with integrated stabiliser, made largely of aluminium to minimise weight. The standard equipment also includes an electro-mechanical steering system with integrated Servotronic function for speed-related steering support.
Active Steering is available as an option, which adapts the steering ratio on the fly to suit road conditions. Optimised occupant protection with crash-active headrests. The safety concept of the new BMW 3 Series is based on a solid body structure, the selective application of high-strength steel types and special deformation elements which divert and absorb impact energy.
In addition there are six airbags, 3-point automatic belts and headrests on all seats to offer occupants optimum protection. ISOFIX children’s seat mounts on the rear seats are a standard feature. The front seats of the new BMW 3 Series are fitted as standard with crash-active headrests which significantly reduce the risk of injury to the cervical spine in the event of an impact.
Controlled by the vehicle’s safety electronics system, this feature ensures that in the event of a rear-on collision the front section of the headrest is moved forward by up to 60 millimetres and upwards by as much as 40 millimetres. This reduces the distance between headrest and head, thus increasing the stabilising and securing function of the headrest.
An impressive contribution to active safety is made by the new generation of adaptive headlight, optionally available in conjunction with bi-xenon headlamps. It guarantees illumination of the road surface when taking a corner. Here the swivel direction of the headlamps is derived from the steering angle, the yaw rate and the road speed of the vehicle. At low speeds the turning light is activated.
This function is performed by one of the two inside headlamps, depending on the direction. Before each turning manoeuvre, the light cone is turned specifically in the appropriate direction to illuminate the road ahead. Best heating and climate comfort in the segment. In the area of comfort fittings, too, the new BMW 3 Series has a range of optimised features on offer.
The further developed heating and air conditioning technology ensures that the interior maintains the desired temperature throughout the year, regardless of prevailing weather conditions.
The new BMW 3 Series has the most high-performance heating and cooling system in its category. Within one minute of activation the entire interior air volume can be completely exchanged three times. In spite of this exceptionally high air -flow rate, excellent acoustics are maintained by means of a flow optimisation function in the unit and its feed lines and by means of an air outlet positioned at the centre of the instrument panel.
A dual-zone air conditioning system is standard with individual temperature controls for the driver and front passenger.
- New accentuation of dynamic lines.
- New headlamps and rear lights.
- Interior with improved ergonomics and elegant chrome features.
In its appearance, the new BMW 3 Series is more dynamic than ever before – muscular all round and with athletically taut surfaces. Flat and bursting with performance potential, the BMW 3 Series squats on the asphalt with its widened track.
The modifications to the front, side and rear are like a single brushstroke. Its distinctive, arrow-like character lines running together on the engine compartment lid and the strikingly modelled front apron give the BMW 3 Series an exciting sense of power and an especially strong 3-dimensional effect.
More striking sense of breadth and presence from the front. With its distinctive lines at the front and rear emphasising its span width, the BMW 3 Series now has an even sportier look. At the front apron, the new width orientation is reflected in the outer air inlets which trace an upward sweep towards the outside, visually highlighting the wider track.
The more powerfully three-dimensionally modelled, dynamic upward sweep running from below and above the central air inlet into the flanks contribute to the enhancement of this three-dimensional styling effect which epitomises the new BMW 3 Series.
The central inlet has been further enlarged both for dramatic, and functional, effect. The widened track of the new BMW 3 Series especially contributes to its powerful appearance. Depending on the model, the track of the rear axle has been extended by up to 24 millimetres by means of a new wheel carrier and other modified details.
Two additional character lines on the engine compartment lid point like arrows, surrounding the BMW emblem and reinforcing the muscular effect of the convex-concave surfaces. Compared to the predecessor model, the double kidney is now noticeably deeper and appears as a self-contained element with the upper chrome bands giving way to a complete chrome surround which turns fascinatingly within itself.
The dual section kidney grille has also been given new contour edges for greater definition. Technical-looking headlamp design symbolising the product personality. The side direction indicators show a new graphic, chrome-coloured rib structure. In its oblique orientation it further enhances the vehicle’s distinct impression of powerful width.
The characteristic brand aesthetic of the dual circular headlights now also comes into its own in the BMW 3 Series due to the use of the corona rings as daytime running lights – in conjunction with bi-xenon headlamps. With halogen headlamps the corona rings act as parking lights. Side silhouette markedly flat. In the BMW 3 Series the longitudinally emphasised design of the sides is dominated by powerfully spread areas and three character lines.
These have the effect of visually stretching the vehicle. The first character line runs back from the front wheels via the side skirt to the rear, where it tapers off just before the rear wheel arches in the surrounding space. It is now more strikingly modelled and placed at a higher level. Both in the rear and the front apron the side skirt line has been extended, giving the vehicle a more elongated look.
The second character line is the bead typical of every BMW which runs from the upper area of the front wheel arches in a very three-dimensional interpretation almost as far as the rear lights. The third character line runs as a fine, meticulously precise shoulder line almost as far as the rear.
The innovative side mirrors are entirely new, with their two distinctive character lines in which the dynamic interplay of the convex and concave surfaces is once again in evidence.
New interpretation of the L-shaped rear light clusters. The dual section rear light clusters are entirely new but display the characteristic BMW L shape, and are now more horizontal in orientation. With the exception of a small rectangular area reserved for the reverse lights they are monochrome and appear as a single entity.
As with the front headlamps they are horizontally subdivided. The rows of tail lights and the direction indicators, both implemented in LED technology, create an attractive three-dimensional effect. The rear lights form a harmonious whole with the new lines at the rear which highlight the width of the vehicle and its visibly solid stance.
Along the rear apron there are two lines tracing a double band which stretch to the sides of the vehicle. This not only emphasises the effect of width but also harmoniously connects the rear to the flanks, making the BMW 3 Series tighter, lighter and appreciably sportier from the rear perspective. Interior: refinement in materials, surfaces and colours.
The modern, high-quality interior of the BMW 3 Series has been further enhanced with specific modifications to material selection and surface design. Crucial operating elements such as the iDrive Controller, air conditioning and audio controls have been further refined for ergonomics and operational ease. Fresh, modern colours round off this high-quality ambience perfectly.
All in all, the modern design concept is echoed in the interior with its generous impression, ample convex-concave surfaces, sporty elegance and technology-oriented aesthetic style. The leitmotif of the twisting band likewise dominates the interior, here creating a sense of lightness and spirited dynamism.
Elegant points of brilliance. Discreet refinements are to be found in a number of control elements as well as in the cockpit instruments of the new BMW 3 Series. The premium character of the model range is underscored in certain details by means of high-quality materials and a harmonious design. Matted chrome shimmers on the start/stop button, the rotary knobs for the air conditioning and the light control panel.
The BMW lettering on the newly designed entry sill is executed in chrome gloss with high-quality steel inserts. The needles of the tachometer and speedometer convey maximum precision with their elegant, filigree design, projecting slightly beyond the centre. The high-quality impression created by the chrome-surround instruments is underscored by means of an even finer integrated chronoscale.
The ergonomically optimised iDrive Controller matches the chrome details with a matted precious metal surface motif. The control unit is now smaller and is supplemented with a number of function buttons. These are grouped around the iDrive Controller, affording swift and direct access to the most important menu items of the iDrive system. In addition to this, the central console offers a larger storage compartment. Alongside an AUX-IN socket and a power socket there is a special recess in which a customary MP3 player can be conveniently stored without slipping about.
The design of the armrests in the door panels has also been ergonomically optimised. The operating panel for the window lifts and mirror adjustment has been moved back two centimetres on the driver’s side so as to enable even more comfortable access. Contemporary range of individualisation options.
With high-quality materials and an expressive colour range, the driver can give his individual personality voice in many ways when selecting an interior package. In terms of individual upholstery design there are a total of five colours available for the Dakota leather seat covers including three new colours Oyster, Saddle Brown and Red Brown. The new range includes gloss-finish decor strips in Diamond Black and Space Grey as well as the fine-grain brushed aluminium finishes and flashes of walnut with horizontal grain. Twelve paint finishes are available for the exterior.
The program now also includes metallic finishes in the colours Space Grey, Bluewater and Tasman. In addition there are nine optionally available light alloy rims, six of which feature a new, sportier spoke design.
The BMW Individual paint selections, Merino leather upholstery and exclusive trim finishes are now available as stand alone options, without having to order the entire Individual package.
- New in-line 6-cylinder diesel engine in the BMW 330d.
- Exhaust emissions reduction in accordance with EU 5, and even EU 6 as an optional extra.
The engines of the new BMW 3 Series have the lowest fuel consumption and exhaust emission levels when compared to their respective competitors. Frequently this leading position in the area of efficiency goes hand in hand with a significantly higher level of driving dynamics, too. The latest example of this compelling combination is the newly developed in-line 6-cylinder diesel engine.
The power unit of the new BMW 330d has an impressive output of 180 kW, 10 kW more than its predecessor engine with a seven per cent reduction in fuel consumption at the same time, but also offering the option of BMW BluePerformance technology (not available in SA)
- with no impact on output and fuel consumption
- to meet the requirements for the stringent exhaust gas regulations defined as EU 6 which will only come into effect in 2014.
The new BMW 330d: increased output, reduced fuel consumption, lower emissions. With the new BMW 330d the benchmark in this segment has been raised even higher. Its 3.0 litre all-aluminium engine employs the latest, third-generation common rail injection system which boasts piezo injectors operating at a pressure of up to 1,800 bar, and a turbocharger with variable turbine geometry which adjusts on the fly to deliver optimum boost in all throttle conditions.
It is fitted as standard with a diesel particulate filter and an oxidation catalytic converter. The new diesel power unit reaches its maximum output of 180 kW at an engine speed of 4,000 rpm, and achieves its maximum torque of 520 Nm on a plateau stretching from 1,750 to 3,000 rpm.
The new BMW 330d accelerates in 6.1 seconds from zero to 100 km/h, and its maximum speed is electronically limited to 250 km/h. In the EU test cycle, the new BMW 330d has an average fuel consumption of 6.3 litres per 100 kilometres. Its CO2 emissions level is just 167 grams per kilometre.
The optimised output and fuel consumption levels are the result of a fundamental reworking of the 6-cylinder engine. In its overall design, in many of its individual components and in the arrangement of its auxiliary units the engine of the new BMW 330d is fundamentally enhanced from its predecessor.
The capacity of 2,993 cc has been maintained, however. The newly developed crankcase is made of a high-strength aluminium-silicon alloy. Newly sized crankshaft bearings and big end bearings reduce frictional losses while at the same time increasing both output and torque.
The crankshaft has been given even greater rigidity in the interests of higher output. The combustion chambers have been redesigned and the height of the cylinder head reduced. The vertical arrangement of the valves together with a newly regulated air intake ensures especially clean combustion with a low level of untreated emissions.
For the first time in a 6-cylinder-diesel engine, ceramic spark plugs are employed which improve starting properties as well as fuel consumption and exhaust emission levels during the warm-up phase. Reduced weight, preparation for enhanced pedestrian protection.
With a weight of 185 kilograms, the new 6-cylinder diesel weighs five kilograms less than its predecessor. This weight optimisation not only contributes to the efficiency of the vehicles powered by this engine but also increases their agility.
With its compact design, low height, a new cylinder head cover, an intake silencer which can be deformed in height and the relocation of the chain drive to the back of the installation, the new diesel also contributes to the fulfilment of future requirements in relation to pedestrian protection.
With a similar geometry to that of the 4-cylinder diesel, the auxiliary units of the generator, power steering pump and air conditioning compressor are placed at the left-hand side of the engine. Since all auxiliary units are driven by a single belt, no second belt level is required. This also further enhances the efficiency of the engine since it avoids excess frictional losses.
Common rail direct injection with new piezo injectors and higher pressure. The third-generation injection system was specially developed for the new 6-cylinder and ensures precisely measured and controlled fuel supply. It is based on common rail direct injection fundamentals, already well established in BMW’s 6-cylinder and 4-cylinder engines, with further developed and centrally located piezo injectors now capable of a maximum pressure of 1,800 bar.
The high-pressure pump, the feed and injection lines of the rail pressure sensor and the pressure regulation valve have also been redesigned as compared to the previous version of the system. The new engine management system is characterised by increased computing power and larger memory capacity.
Among other things, this enables it to tackle the complex control tasks required to fulfil the EU 6 exhaust gas regulation.
The engine management system draws its data from a large number of sensors such as those in the engine block, the cylinder head, the cooling system and the injection system, the oil circulation system, the exhaust manifold, the air intake system, the exhaust gas recycling system and the area of the exhaust system.
Turbocharger with optimised control function. Another further developed feature as compared to the predecessor engine also enhances the effectiveness of the exhaust gas-driven turbocharger in the new 6-cylinder diesel. The turbine geometry adjustment function can now be controlled with even greater precision in relation to load and output requirements.
This ensures a spontaneous response at low engine speeds as well as a high level of power density under full throttle. Modified compressor and turbine wheels improve the overall thermodynamic properties of the turbocharging process.
The newly conceived exhaust gas recycling system includes a duct integrated into the cylinder head, a newly arranged feed line to the air intake system and an especially effective cooling system. The performance-optimised high-quality steel radiator is positioned at the front of the engine and fitted with a bypass shutter which limits pollutant emissions during the warm-up phase.
The quantity and temperature of exhaust gas admixture can be determined precisely according to the engine operating point and engine temperature. This means that hydrocarbon, carbon monoxide and nitrogen oxide emissions are reduced inside the engine, while a high level of smooth running and unmatched poewertrain refinement is guaranteed at all times.
Additional temperature reduction is realised by the ducts in the cylinder head. The cooling effect created additionally contributes to the reduction of the combustion temperature in the combustion chambers which in turn reduces the proportion of nitrogen oxide developed during the combustion process.
Optimised exhaust gas purification in the 4-cylinder-diesel engines as well. Like the new BMW 6-cylinder diesel, the engine of the BMW 320d also fulfils the requirements of the EU 6 exhaust gas regulations in standard form. The 4-cylinder diesel engine has been modified through a series of details, with the reduction of exhaust emission levels being realised without any influence on the output, fuel consumption and acoustic properties of the power unit.
By optimising the combustion and exhaust gas recycling processes, even the untreated emissions generated by combustion are significantly reduced. A high-pressure cooling unit ensures effective temperature reduction and an electrically-controlled valve precisely measures and monitors the exhaust gas recycling process.
The control data is acquired by means of a temperature and exhaust gas pressure sensor. In addition, the effectiveness of exhaust gas after-treatment has been dramatically enhanced. New precious metal coatings for the diesel particulate filter and the oxidation catalytic converter enable even more intensive conversion or storage of hydrocarbons, carbon monoxide, nitrogen oxides and diesel particles.
BMW EfficientDynamics: as standard in every BMW 3 Series. In the new BMW 3 Series the latest efficiency-enhancing measures are applied in combinations specific to each model. These include the weight-optimised aluminium construction, which is also characteristic of the diesel engines in the BMW 3 Series.
What’s more, both the 6-cylinder and the 4-cylinder diesel engines feature advanced third-generation common rail direct injection fuel supply systems, while turbochargers with variable intake geometry ensure a sporty driving performance with an outstandingly high level of efficiency.
Additional model-specific measures to save fuel are put into effect without the driver’s influence.
All versions of the new BMW 3 Series are fitted as standard with new Runflat tyres which feature reduced rolling resistance for further fuel consumption advantages.
- Five petrol engines and two diesel engines to choose from.
- Superior dynamic performance and the highest level of efficiency in the segment.
With five petrol engines and two diesel engines, the new BMW 3 Series offers an extensive range for customers to choose from. The output spectrum ranges from 115 kW in the 4-cylinder BMW 320i to 225 kW in the in-line 6-cylinder engine of the flagship BMW 335i.
The top model: BMW 335i with 6-cylinders and Twin Turbochargers. In the flagship of the BMW 3 Series range, the BMW 335i, High Precision Injection is deployed in conjunction with an aluminium crankcase and Twin Turbo-charging.
The combination of two turbochargers, each supplying three cylinders with compressed air, results in a level of responsiveness which is exemplary among turbo engines. The key advantage of using a pair of these comparatively small turbines is the low level of drag torque experienced when accelerating.
The turbo lag typical of conventional forced-induction engines is thus eliminated entirely. The output curve of this turbo engine is the same as the power delivery of a naturally aspirated engine of significantly higher capacity, while its more compact nature avoids the drawback of increased weight.
This engine – already the three times winner of the international “Engine of the Year” award, including once again in 2008 – generates an output of 225 kW at an engine speed of 5,800 rpm from a capacity of 2,979 cubic centimetres. The maximum torque of 400 Nm is available between 1,300 and 5,000 rpm.
Thanks to this indomitable power delivery, the BMW 335i Sedan moves into the sports car domain needing just 5.6 seconds to accelerate from zero to 100 km/h. The maximum speed is electronically cut off at 250 km/h.
The engine’s fuel consumption level of 9.6 litres per 100 kilometres in the EU test cycle
- moderate for this high-performance class
- also makes the engine an especially fascinating example of efficient dynamics.
- The 6-cylinder engines of the models BMW 330i and BMW 325i are also fitted with a magnesium-aluminium compound crankcase.
- This construction, which was introduced in the BMW 3 Series for the first time worldwide in 2005, provides a weight reduction of around 24 per cent as compared to conventional aluminium crankcases.
- In the BMW 330i, the 2,996 cubic centimetre 6-cylinder petrol engine delivers a sporty 200 kW at 6,650 rpm, in the BMW 325i the pertinent output figure is 160 kW at 6,500 rpm.
- The maximum torque is measured as 315 Nm between 2,750 and 3,000 rpm in the BMW 330i and 250 Nm between 2,750 and 4,250 rpm in the BMW 325i. For the sprint from zero to 100 km/h, the BMW 330i Sedan requires no more than 6.2 seconds.
- The electronically limited maximum speed is 250. In the EU test cycle the average fuel consumption is 8.7 litres per 100 kilometres for the this model.
- The BMW 325i accelerates from zero to 100 km/h in 7 seconds and the maximum speed is 245 km/h.
- The average fuel consumption according to the EU combined-cycle test is 8.4 litres per 100 kilometres. Light, powerful, efficient: 4-cylinder engines with Valve-tronic.
- The light alloy engine with a capacity of 1,995 cubic centimetres powers the entry-level BMW 3 Series, the 320i. Its crankcase is made of aluminium.
- This 4-cylinder unit musters an output of 115 kW at an engine speed of 6,400 rpm, with maximum torque of 200 Nm achieved at 3,600 rpm.
- This enables an acceleration rate from zero to 100 km/h in 9 seconds. The maximum speed is 220 km/h, whilst in the EU test cycle, the BMW 320i has an average fuel consumption of 7.9 litres per 100 kilometres.
Already fit for the EU 6 exhaust gas regulations: the new in-line 6-cylinder-diesel in the BMW 330d. BMW takes a step towards an even further reduction in exhaust gas emissions with the latest version of the 6-cylinder diesel engine.
The completely newly developed power unit can be additionally fitted with BMW BluePerformance technology (not available in SA).
What’s more, the engine’s exhaust system
- which is fitted as standard with a diesel particulate filter and an oxidation catalytic converter
- can be optionally supplemented with an improved NOX storage catalytic converter to reduce nitrogen oxide emissions.
- This makes it the first BMW engine to fulfil the exhaust emission regulations of the planned EU 6 exhaust gas standards, which does not come into force until 2014. Due to the NOX storage catalytic converter, the emission of nitrogen oxides is effectively reduced without any impact on the output and fuel consumption levels of the engine.
In its construction, in a large number of its components and in the arrangement of the auxiliary units, the engine in the new BMW 330d is significantly different from its predecessor, with a 10 kW increase in output and a fuel consumption level simultaneously reduced by about 7 per cent.
The common rail direct injection now operates at a maximum pressure of 1,800 bar. The turbocharger with variable turbine geometry has also been further optimised, as has the exhaust gas recycling system.
The overall weight of the engine has been reduced by an additional five kilograms. From a capacity of 3.0 litres, the engine of the new BMW 330d delivers an output of 180 kW at an engine speed of 4,000 rpm, with its substantial maximum torque of 520 Nm available from 1,750 to 3,000 rpm.
The new BMW 330d accelerates in just 6.1 seconds from standstill to 100 km/h, with maximum speed electronically cut off at 250 km/h. In the EU test cycle the new BMW 330d achieves an average fuel consumption of 6.3 litres per 100 kilometres, with a CO2 emission level of 167 grams per kilometre Light, compact, high-torque and efficient: 4-cylinder diesel in the BMW 3 Series.
The power unit of the BMW 320d is lighter, more efficient and more powerful than comparable 4-cylinder diesel engines in the competitive environment. In addition to the capacity of 2.0 litres, the aluminium crankcase, turbocharging with variable turbine geometry and third-generation common rail direct injection system are among the highlights of the two-litre 4-cylinder diesel engine.
The BMW 320d is fed diesel by four piezo injectors operating at a pressure of up to 1,800 bar. With an output of 130 kW at an engine speed of 4,000 rpm and maximum torque of 350 Nm between 1,750 and 3,000 rpm the engine of the new BMW 320d is not only among the most efficient but also the sportiest representatives of the class of 4-cylinder diesel engines.
The BMW 320d accelerates in just 7.9 seconds from rest to 100 km/h, with a top speed of 230 km/h. Especially in combination with these performance figures, the average fuel consumption according to the EU test cycle of just 5.5 litres per 100 kilometres is an outstanding result. The CO2 emission level of the BMW 320d amounts to just 147 grams per kilometre.
The most efficient vehicle in the segment – now also with 6-speed-automatic transmission. All versions of the new BMW 3 Series are fitted as standard with 6-speed manual transmissions. A 6-speed automatic transmission is optionally available across the model range.
The 6-speed-automatic transmission not only enhances driving comfort, it also fulfils the desire for a dynamic conversion of engine power into driving pleasure. Its sporty characteristics are especially due to a direct link with the engine. This results from modern torque converter technology with an integrated torsion damper which avoids unnecessary slip and therefore power loss.
The converter clutch is closed immediately after the vehicle sets off. In this way, the impression created is the same as that of power transmission in a manual transmission vehicle. With rapid response and shift times, every movement of the accelerator pedal is spontaneously implemented. Even shifting down by more than one ratio level does not require any additional time, due to direct determination of the appropriate gearshift channel.
With its precise control and the low level of converter slip, the 6-speed automatic transmission also enhances the fuel economy of all models of the new BMW 3 Series.
- Newly designed Controller, 8.8 inch Control Display.
- Optimised menu structure, high-resolution graphic display, extended range of functions.
- Additional comfort with direct selection buttons at the Controller and freely programmable functional bookmarks.
The pioneering operating system BMW iDrive is optionally available in the new BMW 3 Series for the activation and control of all standard and optional entertainment, information, navigation and telecommunications functions.
The new generation of iDrive is featured in conjunction with the optional navigation system Professional. In addition to a newly designed Controller in the central console there is an 8.8 inch Control Display with optimised high-resolution graphic display and freely programmable functional bookmarks below the DVD slot as well as additional direct selection buttons grouped around the Controller.
In the new BMW iDrive, the operating element, i.e. the Controller in the central console, and the display element – the central Control Display – remain consistently separated. This ensures optimum ergonomic positioning of the controls and presentation of information with limited distraction of view from the road.
The extremely large 8.8 inch display integrated in the instrument panel sets the benchmark in the competitive field with its clearly structured display and easily comprehensible, visually attractive graphics. It is at the same height as the instrument panel and is at optimum viewing distance for both the driver and the front passenger. Inviting functionality and excellent long-term benefits: Controller with direct selection buttons.
The new iDrive Controller is now more effective to operate. The benefits of the controls, the menu structure and the graphics of the Control Display are revealed both on first contact and in the course of long-term use of the system.
An image of the Controller shown in the Control Display facilitates faster orientation in selecting the next operating step. The operating steps activated by turning or pressing the Controller are very similar to mouse-clicks or wheel movements performed at a computer: turning the knob takes the user through a list of selectable menu items, while pressing it confirms the desired selection.
Simple navigation through the menu levels. By pushing the Controller to the left and right it is simple to navigate through the various menu levels. The customer is provided with maximum orientation due to the clear graphic arrangement in the form of stacked panels and the display of Controller movements currently permitted.
In this way the operating options provided by the Controller and the graphic display supplement each other to improve the user experience. All menus are structured according to a uniform scheme which significantly shortens the familiarisation period. At the same time, the functions are arranged in such a way that in the course of long-term use the most important functions can be reached quickly and intuitively.
Another new feature of the Controller is the four direct selection buttons for the most frequently used menu items. These buttons can be used to switch spontaneously between CD, radio, telephone and navigation functions. The direct selection buttons are supplemented by three additional control buttons which serve to initiate start menus, return to the last active menu and show additional options in the current context. Well-established but now with an even higher degree of individualisation: the functional bookmarks.
With its versatility, BMW iDrive supports the personal operating preferences of the driver, thereby offering yet another bonus in terms of comfort and individuality. The functional bookmarks located in the area of the audio system in the central console enhance this personalisation function. In addition to radio stations, telephone numbers and navigation destinations, these eight buttons can now also be used for speedier selection of other iDrive menu items.
This means that at the press of a single button, the driver is able not just to select his favourite radio station or home address but also have the navigation map displayed in his preferred scale, obtain an overview of traffic bulletins or regulate the loudspeaker balance of the audio system. Large-format display with variable layout, preview maps and full-screen display.
The new iDrive in the BMW 3 Series incorporates an 8.8 inch Control Display. With the high resolution these generous proportions enable it provides significantly enhanced display of graphic details. The restructure of the operating menu also makes it easier to find the desired function.
The flat menu trees and the user system derived from computer technology simplify rapid access to any desired functions. Maps and symbols can also be display three-dimensionally.
The use of the navigation system Professional is now simpler and more aesthetically attractive thanks to the optimised technical functions of BMW iDrive. The full-screen map display function offers an incomparably detailed overview of the region currently being visited. As an addition to the perspective display already provided, it is now also possible to have an altitude map displayed.
Selected places of interest along the route are highlighted in the form of photo-realistic graphics. The special map view under the menu item “Highlight traffic situation” provides an up-to-date convenience – not just in urban traffic. In this view, current tail-back information is marked in red on the display.
On the motorway, this system ensures the driver always has a helpful overview when it comes to potential route deviations to avoid traffic jams. Operation by voice and Controller can be conveniently combined. Another innovation of the iDrive system is that of multi-mode operation by voice and Controller input.
The customer can switch easily between each mode while performing a single task, and if necessary the voice control function can remain active during Controller entry, to be used at the same time. Voice commands are activated by pressing the relevant button on the multifunction steering wheel. Hard drive for audio files and navigation system. The features of the navigation system Professional also includes a hard drive integrated in the vehicle.
This data medium has a capacity of 80 GB and enables exceptionally rapid access to digital navigation information – thereby setting a new benchmark for map access speeds. The hard drive can also be used for storing an extensive collection of music files. The system enables music files to be transferred to the hard drive from a CD, MP3 player or USB stick. The iDrive system can be used to access this personal music collection, a standard CD, another external player or the radio system.
The disk capacity available for music files is equivalent to about 100 audio CDs. In the vehicle database the individual music files are stored along with title and details of the artist.
- 1975: premiere for a new vehicle category.
- Ongoing progress: the BMW 3 Series as a bearer of innovation.
- Setting the benchmark in the segment over five model generations.
To be exact, the history of the BMW 3 Series began in March 1966 – with the presentation of the BMW 1600-2 at the Geneva Motor Show. This was the starting gambit for what was then the smallest BMW model series: a 2-door Sedan with a sports-style design and an engine with a slightly coupé-like character as well as the classic engineering features of the engine at the front driving the rear-wheels.
The BMW 3 Series has always remained faithful to this fundamental principle and acquired its more famour designation at its premiere in 1975 as a new vehicle category within the BMW model architecture.
Over five model generations, the BMW 3 Series has always remained faithful to its character as an agile, smart automobile with an engine of excellent quality – and indeed went on to become the original role model for this type of vehicle. But it has also repeatedly been a pioneer of technological progress and has set the benchmark in its segment for the competition to follow since its introduction.
The first generation: the 3 Series BMW instantly becomes an original. While the first generation of the BMW 3 Series (1975 to 1983) had a single body shape and initially four – later five – engine types with up to 143 bhp in the BMW 323i, the number of versions and engine types was to multiply significantly over the next 30 years. The second generation: variety of versions.
The second generation (1982 to 1994) brought with it a second body version with the first four-door model, a third body version with the Convertible and a fourth with the Touring (at the time deliberately spelt in lowercase letters), as well as the first all-wheel drive derivative. In addition to powerful 4-cylinder and 6-cylinder petrol engines with up to 171 bhp, an 86 bhp diesel engine was also offered for the first time. As a high-performance version, BMW Motor- sport GmbH contributed the iconic M3 – initially with 200 bhp which would later grow to 238 bhp from a four-cylinder naturally aspirated petrol engine with racing pedigree.
The third generation: the advance in design. The third generation (1990 to 2000) started out with completely new styling, the body also increasing notably in size to allow for a more comfortable and safer passenger cell. In the engine area the use of 4-valve technology brought about a significant increase in power output: the range now went from 100 bhp in the BMW 316i to 193 bhp in the BMW 328i Coupé.
As a fifth body version alongside the Sedan, Coupé, Touring and Convertible the BMW 3 Series compact was now introduced which for the first time offered an 87 bhp engine running on CNG gas in addition to petrol and diesel versions.
The fourth generation: a firework display of innovations. In May 1998 the fourth BMW 3 Series was launched – initially as a 4-door Sedan once again, with increased comfort, safety and performance. And it did so with a bang: the BMW 320d was the first BMW with a direct injection diesel engine, overshadowing everything else in its category with an output of 136 bhp, a top speed of 207 km/h and fuel consumption of 5.7 litres.
The other engine versions were equally groundbreaking: the basic model was the BMW 318i with 118 bhp, followed by the BMW 320i with 150 bhp and six cylinders, the BMW 323i with 170 bhp and finally the BMW 328 with 193 bhp. And these engines had many new features to offer: inside the 1.8-litre 4-cylinder engine there were two balancing shafts which improved the noise level inside the car by up to 10 dBA as compared to the predecessor model.
The technologically most prominent measure added to the 6-cylinder engines was the introduction of Double Vanos variable valve timing to provide a fuller torque curve and further reduce the level of pollutants in the exhaust gas. With the combination of rear-wheel drive, an ideal weight distribution of 50:50, the electronic regulation systems ABS, ASC+T and the dynamic stability control system DSC III, the chassis of the BMW 3 Series moved the benchmark to a new level.
A highlight in this package was the ITS head airbag, a tube-like structure hidden in the door frame next to the driver and front passenger ensuring significantly improved head protection in the event of a collision over previous systems. But it was not only these spectacular new features which allowed the 3 Series to advance into regions otherwise reserved for the luxury performance segment.
BMW also introduced the new Car Memory and Key Memory as standard features, as well as offering the multifunction steering wheel, automatic rain sensor and Steptronic as optional extras. From autumn 1998 there followed integrated children’s seats, RDC, xenon headlights, on-board monitor with navigation system, TV functionality and an extended on-board computer system. In addition to the Sedan, the highlights in the model range of the fourth generation were the new versions of the Coupé, Touring, Convertible and Compact, with the BMW 330d as a special highlight. With a rated torque of 390 Nm from 1,750 rpm, the 6-cylinder diesel was a sheer power package with extreme levels of operational refinement.
The enormous pulling power was reflected in the vehicle’s impressive elasticity. The car’s average fuel consumption of 7.0 litres of diesel per 100 kilometres combined with a rated output of 135 kW and a maximum speed of 225 km/h gave a whole new dimension to the concept of diesel efficiency.
The technological concept of the DI 6-cylinder engine was largely that of the 4-cylinder, with 4-valve technology, VNT turbocharger and charge-air cooling, though there was one crucial difference: instead of a distributor injection pump, a common rail system performed the function of supplying fuel to the cylinders. One of the last new models of this fourth generation of the BMW 3 Series to be introduced was by no means a latecomer but a pioneer.
In the BMW 330Cd, BMW offered a diesel engine in a Coupé for the first time. The 204 bhp power package – by that time the DI 6-cylinder had been given a power boost – drove just as one would expect of a BMW Coupé but was powered by a diesel with all the associated benefits: 410 Nm of torque at 1,500 rpm and an average fuel consumption of 6.6 litres. The fifth generation: BMW EfficientDynamics and much more besides.
The fifth generation of the BMW 3 Series celebrated its world premiere at the Geneva International Automobile Salon in 2005. As usual, the Sedan model was launched first. Its striking appearance with short body overhangs, graceful but purposeful dynamic lines and a progressive shape instantly gave it a distinctive character.
A stir was caused by the new in-line 6-cylinder, the first engine in the world to be fitted with a magnesium-aluminium compound crankcase. In addition, the variable valve control system Valvetronic was applied to the 6-cylinder engine for the first time. In combination with the variable camshaft control Double Vanos, this led to an even more spontaneous response and more efficient fuel supply.
The new BMW 330i delivered 190 kW/258 bhp from a capacity of 3.0 litres and generated a maximum torque of 300 Nm. 6.3 seconds were sufficient for the spurt to 100 km/h, while its average fuel consumption was 8.7 litres per 100 kilometres. The two 4-cylinder engines each had a capacity of 2.0 litres: the diesel engine in the BMW 320d delivered 120 kW, the petrol engine in the BMW 320i managed 110 kW.
The engineers had completely redeveloped the chassis of the BMW 3 Series. Its double joint spring strut front suspension was made entirely of aluminium, the five-link rear axle was a lightweight steel construction. The driving stability regulation function DSC was fitted as standard with the addition of functions such as brake readiness and hill start assist.
The BMW 3 Series was also the first vehicle in its segment to be fitted with Active Steering. Another new feature: Active Cruise Control with radar distance sensor which automatically maintained a specified distance to the vehicle in front, if necessary applying the brakes to do so. The groundbreaking operating concept BMW iDrive was also introduced to the BMW 3 Series. In September 2006 the new BMW 3 Series Coupé surprised the world with yet another sensation: for the first time since the 1970s there was once again a petrol engine under the bonnet of a BMW featuring turbo technology.
The 225 kW 3-litre engine saw its world premiere as the first in-line 6-cylinder with Twin Turbo charging, petrol direct injection (High Precision Injection) and an all-aluminium crankcase in the BMW 335i Coupé. Powered by this high-performance engine with the world’s first large-scale serial production jet-guided petrol-direct injection system, the top model achieved a scintillating acceleration run of just 5.5 seconds from zero to 100 km/h. With its average fuel consumption of 9.5 litres per 100 kilometres in line with the EU norm it also set new consumption in relation to performance standards within the competitive environment.
For the first time, the BMW 3 Series Coupé was also offered with the intelligent all-wheel drive system xDrive. As an alternative to standard rear-drive the all-wheel drive system provided further improvement in traction and drive stability over slippery surfaces.
The positive effects of xDrive in terms of driving dynamics were also immediately appreciated in the BMW 3 Series Coupé. Since March 2007 the first BMW Convertible with retractable hard top has unleashed a new open-top euphoria. And the models powered by diesel engines are growing in popularity, too. All in all, the Convertible offers a degree of comfort, rigidity and value which is unique in the segment.
The triple-section roof in lightweight steel panel construction spreads itself fully automatically and within just 23 seconds across the 3-Series passenger compartment. At the same time as the launch of the new BMW 3 Series Convertible, a whole new generation of 6-cylinder engines was presented, along with the first BMW 4-cylinder engine with petrol direct injection. The new engines with High Precision Injection in lean operation mode are now available in all versions of the BMW 3 Series.
As compared to predecessor engines, they provide significantly improved driving performance figures in combination with a noticeable reduction in fuel consumption and exhaust emission levels – in line with the development strategy envisaged as BMW EfficientDynamics. Once again, as so often in the course of the 30-year history of the BMW 3 Series, it has done justice to its reputation as the true original of its category and a pioneer of groundbreaking automotive technology.
- New 7-speed sports automatic transmission with double clutch, shifts without any interruption of torque.
- Increase in sprint capacity, reduced fuel consumption and exhaust emissions.
- Premiere in the BMW 335i Coupé and BMW 335i Convertible. BMW presents an enthralling alternative to the 6-speed manual transmission which fascinates drivers with sporty ambitions while at the same time providing all the convenience and comfort of an automatic transmission.
The new 7-speed sports automatic transmission with double clutch (DKG) now available in the BMW 3 Series enables even more dynamic acceleration and contributes to the reduction of fuel consumption and exhaust emission levels. It represents the sportiest embodiment of the development strategy BMW EfficientDynamics.
The new sports automatic transmission gives the driver the choice between automated shifting and manual gear selection. In both cases, the 7-speed double clutch transmission shifts without interruption of power delivered to the driven wheels and by consequence enhances traction, thus enhancing both sporty dynamic responses and shift comfort.
The result is a unique combination of further increased dynamic performance when shifting manually with the comfort provided by automatic transmission – and at fuel consumption and exhaust emission levels which are even lower than those of manual transmission vehicles.
A newly designed shift lever is provided in the central console to operate the system. It is clearly differentiated from a conventional automatic transmission selector lever in its shape and its integrated display for the selected shift program; and it does not relay commands for the shift program selection or gear change by means of a mechanical connection but electronically.
Alternatively, the driver can carry out manual gearshifts using shift paddles which are attached to the steering wheel. This innovative transmission system developed for the BMW 3 Series is designed specifically for especially powerful and high-revving engines in vehicles with rear-wheel drive. Consequently its debut is in the models BMW 335i Coupé and BMW 335i Convertible, where it is featured in combination with the 225 kW in-line 6-cylinder engine with Twin Turbo and High Precision Injection. Sports automatic transmission with double clutch in the BMW 3 Series: faster and more economical.
The gradation of the 7-speed transmission ensures a constant increase in speed which is continued at an optimum follow-up engine speed after each shift. No time is lost while changing gear because there is no interruption of drive to the wheels. The sports automatic transmission completes entire gearshifts within a period of time which in manual transmission vehicles would at most be sufficient to open the clutch. The result: outstanding acceleration rates.
The BMW 335i Coupé with sports automatic transmission completes the sprint from zero to 100 km/h in just 5.4 seconds – 0.1 seconds faster than the model fitted as standard with 6-speed manual transmission (5.5 seconds) and 0.3 seconds faster than the BMW 335i Coupé with the previously available 6-speed automatic transmission.
The benefits of shifting without interruption of traction and the small steps in engine speed are not only reflected in driving dynamics but also in ride comfort and efficiency. Excellent acceleration goes hand in hand with outstanding shift comfort in urban traffic. The swift, jerk-free change of gears makes for exceptionally harmonious acceleration manoeuvres.
The unavoidable load change reactions associated with conventional transmission systems are completely eliminated: even when driving with maximum dynamic performance, a level of ride comfort is achieved which was not previously feasible. Due to the swift and precise selection of the ideal gear, the efficiency of the vehicle is further optimised.
The BMW 335i Coupé with sports automatic transmission achieves an average fuel consumption in the EU test cycle of 8.8 litres per 100 kilometres. The average fuel consumption of the BMW 335i Convertible with sports automatic transmission is 9.1 litres per 100 kilometres.
This is equivalent to a reduction in fuel consumption of up to five per cent as compared to the equivalent models with 6-speed manual transmission and with 6-speed automatic transmission. Three operating modes, new gear lever, manual gearshift using paddles.
The newly-designed shift lever by which the driver operates the sports automatic transmission with double clutch serves both to change between shift modes and to relay shift commands for manual gear selection. Its shift layout is the same as that of a regular automatic transmission, though the lever always returns to its original position after activation.
The sports automatic transmission with double clutch is not operated mechanically but by means of electrical signals. The current shift program or gear position is shown in the display panel of the shift lever and in the instrument panel. The new sports automatic transmission with double clutch ensures faster and more comfortable gear changes in three operating modes. Automated gearshifts are made both in the comfort-oriented D mode and in the sports-oriented S mode.
The S mode is activated by shifting the lever to the left. An additional shift of the selector lever to the front (–) or rear (+) activates the manual shift mode. The driver can opt for manual gearshift at any time, both in the standard D and S shift programs. The driver simply makes the first shift using the paddles at the steering wheel. The instrument panel then shows an M symbol in conjunction with the relevant gear, instead of the S symbol.
Maximum dynamic performance: sports button and Launch Control. When accelerating in automated shift mode, the gear shifts are undertaken significantly later in the rev range in S mode than in D mode so as to exploit engine torque more fully. In addition, the shift characteristics of the sports automatic transmission with double clutch can be influenced by using the sports button in the central console. By pressing this button, both the accelerator pedal and the gear shift response are given a sportier profile.
This creates a perceptibly power-oriented acceleration response with faster gearshifts, both in the D and the S mode of the sports automatic transmission. Gearshifts are enacted more aggressively by means of faster closing of the clutch with sporty feedback to the driver.
The combination of S mode and activated sports button thus results in gear-shifts at much higher engine speeds and a highly sporty shift response.
The double clutch transmission is also in contact with the engine management system when it comes to downshifts. Clutch engagement is very gentle so as to prevent any unwanted braking of the rear wheels.
If the transmission electronics system detects a very large jump in engine speed at a change of gear – for example in the case of an extremely sporty driving style and sudden application of the brakes – torque relay to the next gear is delayed until the engine speed regulator has increased engine speed accordingly. This intermediate throttle application further enhances drive stability as well as intensifying the driving experience. In manual mode the sports automatic transmission with double clutch also provides a Launch Control which enables a standing start with maximum acceleration, adapted to the prevailing conditions in terms of tyre state, road surface and load.
The requirement for the use of Launch Control is activation of Dynamic Traction Control (DTC), which raises the threshold response of the Dynamic Stability Control (DSC) function, and of the sports button. Before setting off, the driver must select first gear in manual mode.
After releasing the brake pedal and with maximum pressure on the accelerator pedal the vehicle then accelerates in optimum fashion at full throttle with rear wheel slip regulated by DSC – up to maximum speed if desired. Here the double clutch transmission automatically sets the shift points without intervention by the driver so that the optimum follow-up engine speed is always available when shifting up.
Once the acceleration manoeuvre is complete, the driver takes control of the gear selection once more. Functional principle adapted from motor racing. The principle of the double clutch transmission has its roots in motor racing. It has become well established on the race track, where even a tenth of a second can decide victory or defeat, as with sequential shifting familiar from Formula 1.
Shifting up at full throttle without interruption of traction even makes a professional driver a few valuable fractions of a second faster. For serial production vehicles, the appropriate shift comfort was only possible in combination with engines offering a significantly lower level of output and torque.
For the first time it is now possible to make the benefits of the double clutch transmission available at high levels of output and in combination with rear-wheel drive and engines with increased engine speeds. The sports automatic transmission with double clutch is designed for engine speeds of up to 9,000 rpm and torque levels of up to 600 Nm and is therefore ideally suited to the character of the high-revving in-line 6-cylinder engines which BMW is rightfully famous for.
The sports automatic transmission with double clutch combines two partial gearboxes in one casing, whose compact dimensions are the same as those of a conventional manual transmission. The technical core of the system is provided by two oil-cooled wet clutches. One of the two clutches is for the even transmission stages (2, 4, 6), the other is for the uneven transmission stages (1, 3, 5, 7) and the reverse gear. While the vehicle is moving, one of the two clutches is closed and the other open.
During an acceleration manoeuvre – also when shifting down – they thus operate in alternation. At every gearshift, the opening of the first clutch happens simultaneously with the closing of the second.
The transmission control system identifies the next gear with a transmission ratio which is ideally suited to the relevant engine speed and road speed, selecting it in advance and holding it in readiness. For example, if the vehicle is accelerating in third gear the power transmission is effected through the relevant clutch and partial gearbox with the uneven gears.
In the partial gearbox responsible for the even transmission stages, the gear required to continue the acceleration process – in this case the fourth gear – is already engaged. It is then sufficient for the clutch responsible for the fourth gear to close while the clutch for the third gear simultaneously opens: within milliseconds the engine power is transferred to the wheels at the new gear transmission ratio.
This enables a jerk-free, comfortable gearshift which is also incomparably fast and without any interruption of traction whatsoever. The electronic control system detects the driver’s wishes. When selecting the next gear ahead of time, the electronic control system always takes account of the current situation on the road.
Based on the accelerator pedal position, the engine speed, road speed and shift program selected, the system identifies the level of intensity of an acceleration manoeuvre as desired by the driver or any intended reduction of speed, for example. The transmission control always provides for as harmonious a continuation of the manoeuvre initiated by the driver as possible.
Even in the event of an extremely abrupt change of driving style, any required change of gear is effected with high speed and precision. If for example an initiated acceleration manoeuvre has to be interrupted unexpectedly, the sports automatic transmission with double clutch instantly provides a transmission ratio which is appropriate to the new situation. Safety and comfort functions supplement sporty character.
The sports automatic transmission with double clutch not only supports the driver in terms of a sporty driving style, it also offers a wide range of safety and comfort functions. The automatic engine speed increase causes a regulation of engine drag torque appropriate to the situation at hand when shifting down at critical moments, thereby preventing the rear of the vehicle from losing control.
For especially slow vehicle movements – for example parking manoeuvres or in stop-and-go traffic – the new sports automatic transmission with double clutch also has a crawl function as familiar from conventional automatic transmissions. Setting off gently without actuating the accelerator is thus possible at a maximum level of comfort and regardless of the operating state of the transmission. What’s more, hill detection ensures that shift timing is oriented towards the route profile.
On uphill and downhill slopes, gearshifts are set differently to when driving on level roads. In combination with the top-of-the-range engines installed under the hood of the BMW 3 Series, the sports automatic transmission with double clutch offers an experience of driving dynamics which was previously only provided by high-performance sports cars available at significantly higher price points.
- BMW 320i Start R286 500
- BMW 320i R303 000
- BMW 320d R341 500
- BWM 323i R337 000
- BMW 325i R367 500
- BMW 330i R424 000
- BMW 330d R432 500
- BMW 335i R477 000
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