The BMW 1 Series Coupe and Convertible

Category: BMW, BMW 1 Series
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The new BMW 1 Series M Coupe Dashboard

Now even more dynamic and efficient.

Outstanding efficiency and sporty driving enjoyment are hallmarks of the BMW 1 Series Coupe and the BMW 1 Series Convertible premium compact-class models. These two-door BMW 1 Series models have added to their sporty and elegant appeal with some carefully selected design modifications, optimised aerodynamics and attractive equipment features.

The new BMW 1 Series M Coupe

A restyled front apron now showcases the typical BMW personality even more effectively. The central under-bumper air intake is strikingly enhanced by a black trim strip, and the sporty theme continues with the apron-integrated fog lamps and the new vertical air intakes, which are mounted well to the outside.

The resized vertical ventilation slits in the front apron channel air into the wheel arches to create a kind of “air curtain” or aerodynamic screening effect across the face of the front wheels, which significantly reduces drag in this area. The Air Curtain is a further step in BMW’s pioneering EfficientDynamics programme. In combination with Brake Energy Regeneration, the Auto Start- Stop function, the gear shift indicator and on-demand control of auxiliary units, it has a further positive impact on fuel consumption and emissions.

New accents on the lighting front: bold and instantly recognisable.

Both the new BMW 1 Series Coupe and the new BMW 1 Series Convertible come with restyled and even more attractive headlights and rear lights. The detailed reworking of the main headlight unit is further enhanced by an accent strip which runs across the top of the twin headlights. The L-shaped rear light cluster, which now features a new, all-red housing, makes a particularly powerful statement, while xenon headlights with integrated LED accent lights (daytime running lights) and LED strips in the rear lights create the typical, instantly identifiable BMW night-time look.

The new BMW 1 Series M Coupe 2011

New upholstery: improved interior customisation.

The sporty and exclusive interior feel has been further heightened by new, carefully coordinated interior trim features. The range of seat upholstery and decorative trim features has been extensively revised. The new upholstery options for the BMW 1 Series Coupe and BMW 1 Series Convertible comprise “Network” fabric upholstery in Magna Brown, and Oyster or Savanna Beige “Boston” leather. Other new interior options are a sports leather steering wheel with shift paddles and an M leather steering wheel, again with shift paddles.

On all models, regardless of specification, BMW has now improved the markings on the DSC button in the instrument panel by replacing the letters DSC (Dynamic Stability Control) with a new international symbol. On all BMW 1 Series Coupe and BMW 1 Series Convertible models, the standard-version interior now includes a wide range of features that further reinforce the strong sense of quality and refinement. For example, the light control centre and the climate control panel in the centre console now feature elegant chrome edging. The interior trim strip range has been revised and now includes an Alpine White version.

The new BMW 1 Series M Coupe Dashboard

The most sporting and dynamic models in the compact segment.

The BMW 135i Coupe and BMW 135i Convertible

The BMW 135i Coupe and the BMW 135i Convertible come with a straight-six power unit combining BMW TwinPower Turbo Technology, High Precision Injection and fully variable VALVETRONIC valve management, all interacting with one another to set new standards for economy with the highest level of performance.

In conjunction with the seven-speed double-clutch gearbox (DKG) featuring Sport Automatic available as an option, these superior technologies offer a further significant reduction of fuel consumption and emissions on these top-flight performers, setting up new records in acceleration and dynamic performance.

The top engine featured in both versions of the BMW 1 Series develops maximum output of 225 kW at 5,800 rpm from a capacity of three litres, combining spontaneous and direct response with unleashed free-revving driving qualities. Peak torque of the six-cylinder is 400 Newton-metres delivered from just 1,200 rpm all the way to 5,000 rpm.

The seven-speed double-clutch gearbox with Sport Automatic shifting gears without the slightest interruption in power and torque, is likewise designed and built for dynamic performance of the highest standard.

Sport Automatic offers not just the option to shift gears manually on the electronic gear selector lever or via the shift paddles on the steering wheel, but also the usual comfort and convenience of a BMW automatic transmission.

The combination of these two innovations in a compact car naturally guarantees driving pleasure of a new standard never seen before. Accelerating from 0 – 100 km/h in just 5.2 seconds, the BMW 135i Coupe with its double-clutch gearbox offers the same supreme standard as a thoroughbred sports car even more than in the past.

A truly unique achievement in this performance class is average fuel consumption in the EU test cycle of 8.5 litres/100 kilometres, almost one litre/100 kilometres better than the comparable figure in the former model with its six-speed automatic transmission.

This significant reduction of fuel consumption, together with improved acceleration, clearly confirms the progress made through BMW EfficientDynamics with this new engine and transmission technology.

The BMW 135i Convertible with double-clutch gearbox accelerates to 100 km/h in 5.5 seconds and the average fuel consumption in the EU test cycle is 8.6, which is 0.8 litres better than on the former model with automatic transmission.

Outstanding innovation for optimised efficiency:  first-ever VALVETRONIC on a turbocharged engine.
The straight-six power unit of the BMW 135i Coupe and the BMW 135i Convertible owes its exceptional efficiency to the first-ever combination  of BMW TwinPower Turbo Technology, High Precision Injection, and  VALVETRONIC valve management.

The turbocharger system following the twin-scroll principle separating the ducts for three cylinders at a time both in the exhaust gas manifold and in the turbocharger, as well as VALVETRONIC developed to an even higher standard of efficiency, contributes accordingly to the extremely spontaneous and direct response of the drivetrain.

This kind of technology allows infinite adjustment of valve stroke and valve timing on the intake valves. Throttle losses in the charge cycle are reduced to a minimum and the energy contained in the fuel is put to maximum use.  In conjunction with High Precision Injection likewise optimised to an even higher standard, this offers an unparalleled balance of driving performance and fuel economy never seen before in this class.

Enhanced dynamics, greater efficiency: optional seven-speed Double-Clutch Gearbox.
Both the BMW 135i Coupe and the BMW 135i Convertible features the seven-speed double-clutch gearbox with Sport Automatic featured for the first time in the BMW 1 Series makes an even greater contribution to the optimisation of driving characteristics in the spirit of BMW EfficientDynamics.

The double-clutch gearbox improves both acceleration and the efficiency of these compact top-flight performers, at the same time combining this dual progress with the comfort features of a BMW automatic transmission. The seven-speed double-clutch gearbox shifts gears without the slightest interruption of power and torque and offers the driver the choice of either automatic transmission or a manual gearshift.

The fast and smooth shift of gears allows unusually harmonious acceleration and helps to reduce both fuel consumption and emissions. The close, sporting increments of the seven gears ensure that the optimum transmission ratio is always available in all situations.

A combination of dry sump and injection lubrication serves to further optimise the efficiency of the engine through a supreme level of oil supply.
Last but not least, the double-clutch gearbox is controlled with utmost convenience either through the newly designed gear selector lever or by gearshift paddles on the steering wheel.

The new BMW 1 Series M Coupe Engine

BMW 135i Coupe and BMW 135i Convertible: outstanding performers in the compact segment and beyond.

The six-cylinder with BMW TwinPower Turbo Technology and the seven-speed double-clutch gearbox bring out the unique character of these top performers in the compact segment even more and in greater style than ever before. Through their performance alone, the BMW 135i Coupe and the BMW 135i Convertible achieve the supreme standard of a very powerful sports car. And at the same time the driving experience conveyed by both models boasts the agility typical of a BMW 1 Series.

Superior drivetrain technology and a concept unique in this class with rear-wheel drive, the passenger cell moved far to the back, and almost ideal distribution of axle load, offer the optimum combination for unique driving pleasure.

Both models come as standard with a modified M Aerodynamics Package and M Sports Suspension. Other standard features include DSC Dynamic Stability Control with an individualised set-up, an electronically masterminded locking function on the differential, as well as model-specific control maps for Servotronic power steering and the gas pedal, again underlining the sporting character of both models.

BMW 1 Series Coupe and Convertible Other engine variants at a glance.

Engine variants:

BMW 120i Convertible: Four-cylinder engine with BMW TwinPower
Turbo and TwinScroll turbocharger with Valvetronic and direct petrol injection,
Displacement: 1,995 cc, output: 115 kW at 6,400 rpm,
Max. Torque: 200 Nm at 3,600 rpm.
Acceleration 0–100 km/h: 5.0 seconds,
Top speed: 212 km/h.
Average fuel consumption according to EU standard: 8.2 litres/100 kilometres,
CO2 emissions according to EU standard: 192 g/km,
Exhaust standard: EU5.

BMW 125i Convertible: Six-cylinder engine with BMW TwinPower
Turbo and TwinScroll turbocharger with Valvetronic and direct petrol injection,
Displacement: 2,996 cc, output: 160 kW at 6,100 rpm,
Max. Torque: 270 Nm at 2,500 – 4,250 rpm.
Acceleration 0–100 km/h: 5.0 seconds,
Top speed: 236 km/h.
Average fuel consumption according to EU standard: 9.3 litres/100 kilometres,
CO2 emissions according to EU standard: 217 g/km,
Exhaust standard: EU5.

BMW 120d Coupe: Four-cylinder engine with BMW TwinPower
Turbo and common rail direct injection,
Displacement: 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: 7.8 seconds,
Top speed: 226 km/h.
Average fuel consumption according to EU standard: 5.3 litres/100 kilometres,
CO2 emissions according to EU standard: 140 g/km,
Exhaust standard: EU5.

BMW 125i Coupe: Six-cylinder engine with BMW TwinPower
Turbo and TwinScroll turbocharger with Valvetronic and direct petrol injection,
Displacement: 2,996 cc, output: 160 kW at
6,100 rpm,
Max. Torque: 270 Nm at 2,500 – 4,250 rpm.
Acceleration 0–100 km/h: 7 seconds,
Top speed: 243 km/h.
Average fuel consumption according to EU standard: 8.9 litres/100 kilometres,
CO2 emissions according to EU standard: 207 g/km,
Exhaust standard: EU5.

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