Electric Power Steering
Unlike conventional, hydraulic steering systems,
the electrical steering only uses energy while
steering is actually taking place. When the
steering wheel position is constant – for example
at high speed along the motorway – the electric
motor is inactive.
BMW TwinPower Turbo technology
This innovative exhaust gas turbo charger
effi ciently recaptures the energy present
in exhaust through the use of two chargers
(Z4 3 5 i and Z4 sDrive3 5 is).
Optimum Shift Indicator
Timely gear shifts are one of the most effective
and easiest ways to save fuel. This is where the
Optimum Shift Indicator in conjunction with six-
speed manual transmission comes in. It shows
the driver what gear to use in order to drive more
effi ciently.
Brake Energy Regeneration
To supply a battery with electrical energy,
the generator (alternator) is permanently
driven using engine power, which demands
additional fuel consumption. Brake Energy
Regeneration means the generator usually
only generates electricity when the driver
either takes their foot off the accelerator or
the brake – 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.
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.
Lightweight construction
Our engineers use aluminium where lighter
materials are more expedient, for instance in
the front section or for the suspension, in the
bonnet and in the hardtop. The six-cylinder
in-line petrol engine, for instance, is composed
of aluminium and magnesium. Making these
engines the lightest in their class. These weight
savings lead to lower fuel consumption and
better axle load distribution, for more agility,
especially in bends.
Some BMW EfficientDynamics features are dependent
on the car’s equipment and are not available for all model
variants. Your BMW Partner will be happy to provide you
with information on all equipment details.
THIS HAS GONE IN.
The pleasure you get from driving a BMW is the result of fi ne engineering – always setting standards, as it is based on much more than engine power.
This is the tradition behind BMW Effi cientDynamics. It includes the visionary Hydrogen engine, already used in the completely emission-free
BMW 7 Series saloons, and the BMW ActiveHybrid – an intelligent, demand-oriented combination of internal combustion engine and electric motor.
And every BMW already includes the multi-award-winning BMW Effi cientDynamics technology package as standard that boosts dynamics even
further whilst simultaneously reducing fuel consumption and CO2emissions.
