Technical data

Lightweight construction
Our engineers use lightweight aluminum
throughout our vehicles – in the front section,
for example, or for the suspension. BMW’s
inline six-cylinder TwinPower Turbo engine is
all aluminum; the naturally aspirated inline six
is an aluminum/magnesium composite – the
lightest in its class. Taken together, these
weight savings lead to lower fuel consump-
tion and better axle load distribution for more
agility – especially in curves.
Efficient transmissions
The 1 Series Coupe offers a choice of
transmissions, each designed to maximize
efficiency. In both models, a smooth-
shifting 6-speed manual is standard.
Automatic transmissions are also avail-
able: a 6-speed STEPTRONIC automatic in
the 128i, and in the 135i, a quick-shifting
7-speed Double Clutch Transmission.
THIS IS HOW MUCH HAS GONE IN.
At BMW, we create dynamic vehicles that thrill you with quick acceleration, predictable handling and unshakable control. We are also busy
fi nding innovative fuels and technologies that help preserve the environment while delivering legendary performance. This is what we refer
to as “Effi cientDynamics.” This goal led to the visionary CleanEnergy hydrogen-powered engine in the BMW Hydrogen 7 Sedan. In 2009,
BMW introduced Advanced Diesel with BluePerformance in the U.S., offering diesel power with quick acceleration, increased fuel effi ciency
and reduced emissions. And now, BMW’s ActiveHybrid X6 and ActiveHybrid 7 vehicles combine combustion and electric power to boost
performance while simultaneously reducing fuel consumption and CO
2
emissions. At BMW, we are driven to do much more with less.
Dou ble -VAN OS
VANOS is BMW’s valve timing system
that can “steplessly” vary the points in
the combustion cycle when valves open
and close. Double-VANOS refers to the
fact that it operates on both the intake
and exhaust camshafts. Electronically
controlled in response to engine speed,
load and temperature, VANOS reduces
emissions, and enhances low- to medium-
speed torque, as well as fuel efficiency.
Aerodynamics
The more smoothly that air flows over a vehicle, the
more efficiently it can operate. All BMWs are designed
for a low coefficient of aerodynamic drag, which
translates into quicker acceleration, more stable
handling, quieter operation and greater fuel efficiency.
A BMW’s integrated front spoilers reduce the amount
of air flowing underneath, minimizing front-end lift.
This allows a BMW to hug the road at higher speeds
for excellent stability.
Valvetronic
Instead of using a traditional throttle,
Valvetronic technology lets the engine
breathe more easily by varying the lift height
of the valves to regulate air intake. The result:
improved cold starts, smoother running,
and a significant drop in fuel consumption.
Using revolutionary tech nology such as this,
BMW has improved its overall average fuel
economy more than any other manufacturer.
TwinPower Turbocharged engine
The 300-hp 135i benefits from BMW’s new
TwinPower Turbo engine with Valvetronic
technology that delivers quick acceleration
without any “turbo lag.” Fuel economy is
strong, as well, thanks to High Precision
Injection.
B M W E f fi c i e n t D y n a m i c s | 2524
BMW Effi cientDynamics
Less emissions. More driving pleasure.
AND THIS IS WHAT COMES OUT.
BMW models have low CO
2
emissions today.
But that’s just for starters. We’re carrying on
our research in the quest to bring you greater
driving pleasure, with fewer emissions and
decreased fuel consumption.