BMW 325D - BROCHRUE 2010 Bedienungsanleitung PDF herunterladen (Seite 8)

BMW Ef´ cient Dynamics.

This is how much we’ve invested.

High Precision Injection

In this cutting-edge generation of petrol direct

injection, the Piezo injectors are positioned

very close to the spark plugs. They inject

the fuel at high pressure and with extreme

precision. The injectors’ central positioning

means only part of the combustion chamber

needs to be filled with an ignitable petrol-air

mixture. The engine can then run “leanly”

(not for 335i) and so efficiently, precisely in

the heavily used moderate load range. (320i,

325i, 330i, 335i)

Auto Start/Stop function

BMW four-cylinder engines with 6-speed

manual transmission automatically shut down

when the vehicle is stationary, for example at

a red light or in a jam, when the driver acti-

vates the clutch and switches to neutral.

The engine restarts as soon as the clutch is

activated again. This innovation signi´ cantly

reduces fuel consumption especially in city

traf´ c. (320i, 320d)

Brake Energy Regeneration

To supply a battery with electrical energy,

the generator (alternator) is customarily

driven using engine power, which demands

permanent fuel consumption. Brake Energy

Regeneration means the generator usually

only generates electricity when the driver

either takes the foot off the accelerator or

brakes – previously unused kinetic energy is

transformed in coasting mode into electrical

energy before being fed into the battery.

In this way, electricity is generated while

coasting, without consuming fuel. (all models)

Individual BMW EfficientDynamics features may be excluded,

depending on the optional equipment chosen. Your BMW partner

will be pleased to provide you with more information.

Electrical steering

In comparison with conventional, hydraulic

steering systems, the electrical steering only

uses energy during actual steering. When the

steering wheel position is constant – for

example at high speed along the motorway –

the electronic motor is inactive. (320i, 325i,

330i, 320d, 325d, 330d)

Tyres with reduced rolling-resistance

While driving, tyres are constantly changing

shape. This uses up energy and thus fuel.

Tyres with reduced rolling-resistance have

an improved design and use special materials

for their road treads and side walls, thus

reducing deformation. (all models)

Air vent control

Engine management signals the engine’s

current cooling capacity requirements

constantly while driving. Rendering a

permanent airstream through the radiator

unnecessary. The air vents in front of the

radiator open or close depending on the

environmental temperature and road speed.

When shut they improve aerodynamics,

shorten the engine’s warm-up time and so

reduce fuel consumption. (320i, 325i, 330i,

320d, 325d, 330d)

Shift Point Display

Timely gear shifts are one of the most effective

and easiest ways to save fuel. This is where

Shift Point Display in conjunction with 6-speed

manual transmission comes in. It shows the

driver what gear to use in order to save fuel.

(all models, except 335d)

The pleasure you get from driving a BMW is the result of fine engineering – always setting the benchmark because it is based on much more

than engine power. This is the tradition behind BMW EfficientDynamics. It includes the visionary CleanEnergy hydrogen-powered engine,

already used in a number of completely emission-free BMW 7 Series saloons. Also going into production soon is the BMW ActiveHybrid

– an intelligent, demand-oriented engine combining combustion and electronics. And every BMW already includes a technology package as

standard that boosts dynamics even further whilst simultaneously reducing fuel consumption and CO

emissions.

And this is what’s come out of it.

BMW already offers 21 models with CO

emissions of 140 g/km and signiﬁ cantly less.

But that’s just for starters. We’re carrying on

our research – in the quest to bring you more

driving pleasure and less consumption.

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