BMW 528I Service Manual download pdf (Page 15)

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 ways to sustain this level of performance while incorporating innovative fuels and technologies to help preserve the environment.

This is what we refer to as “Efﬁ cientDynamics.” This goal has led to the visionary CleanEnergy hydrogen-powered engine, which is currently

used in the BMW Hydrogen 7 Sedan. BMW Advanced Diesel with BluePerformance, which offers diesel power with quick acceleration,

increased fuel efﬁ ciency and reduced emissions, was introduced to the U.S. in early 2009. In fact, every BMW on the road today comes

standard with technology that boosts performance while simultaneously reducing fuel consumption and CO

emissions.

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 twin-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 5 Series Sedan offers a choice of three

6-speed transmissions: a smooth-shifting

manual, and two fuel-efficient automatics

– the STEPTRONIC automatic and the Sport

Automatic.

Valvetronic

Instead of using a traditional throttle,

Valvetronic technology in the 528i and 550i

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.

Twin-turbocharged engine

Benefiting from BMW’s twin-turbocharging

technology, the 300-hp 535i delivers quick

acceleration without any “turbo-lag.” Fuel

economy is strong, as well, thanks to precise

piezo direct fuel injection.

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.

B M W E f ﬁ c i e n t D y n a m i c s

2 8 2 9|

And this is what comes out.

BMW models have low CO

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.

BMW Efﬁ cientDynamics

Less emissions. More driving pleasure.

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BMW 528I Service Manual Page 15

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