BMW Effi cient Dynamics.BMW Ef cient Dynamics.
This is how much we’ve invested.
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 Effi cientDynamics. 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
2
emissions.
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
fi lled with an ignitable petrol-air mixture. The
engine can then run “leanly” and so effi ciently,
precisely in the heavily used moderate load
range. (520i, 523i, 525i, 530i)
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.
Ty res 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. (520i, 523i, 525i, 520d, 525d)
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. (all models)
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.
(520i, 523i, 525i, 530i, 540i, 550i, 520d,
525d, 530d
)
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