Technical data

BMW EfficientDynamics24 25
BMW EFFICIENTDYNAMICS.
LESS EMISSIONS. MORE DRIVING PLEASURE.
BMW EFFICIENT DYNAMICS –
MAKING A LITTLE GO A LONG WAY.
For BMW, the focus is always on delivering quintessential BMW driving pleasure. The pioneering BMW Ef cientDynamics strategy, used across the
entire model range, supports this goal using innovative technologies that minimise the vehicles’ fuel consumption and emissions while at the same
time enhancing dynamic performance and driving enjoyment.
It’s a comprehensive technology package that encompasses the engine, energy management and the vehicle concept – and is standard in every BMW.
The new generation of petrol and diesel engines in the BMW TwinPower Turbo family is responsible for the improved performance and the reduction
in emissions. Optimised aerodynamics and BMW Ef cientLightweight contribute to increased ef ciency. The BMW intelligent lightweight construction
concept is all about using the right material in the right place, in order to lower weight, increase rigidity and thus achieve maximum agility.
BMW is leading the charge in terms of innovation in this area and is the only major car manufacturer that uses ultralight and highly rigid carbon  bre
(CFRP). BMW also focuses on forward-thinking drive train concepts such as the BMW eDrive technology with a % electric powerplant, as well as
plug-in hybrid models.
Overall, the technology package encompasses a multitude of optimisation measures in every BMW. Other features such as the ECO PRO mode, the
Automatic Start/Stop function, the optional eight-speed Steptronic transmission and Brake Energy Regeneration also contribute to reductions in fuel
consumption and emissions. Included as standard in every BMW.
The Automatic Start/Stop function temporarily switches of the engine
during short vehicle stops such as traf c lights or in traf c jams to reduce
fuel consumption. When the clutch (manual) or the brake (Steptronic)
is applied, the engine starts up again automatically and within fractions
of a second.
BM W Twin Power Tur b o t ech nol ogy combines the petrol engines
with a TwinScroll turbocharger with Valvetronic, Double-VANOS and High
Precision Injection. With the diesel engines, CommonRail direct injection
combines a turbocharger (d and d with two-stage turbocharging)
with variable turbine geometry. These measures signi cantly reduce fuel
consumption in all powerplants, while, at the same time, considerably
increasing power across a wide speed range.
With Brake Energy Regeneration, the alternator generates electricity
mainly when the driver lifts off the accelerator pedal or applies the brakes.
The kinetic energy this develops is converted into electric power and fed
into the battery.
Unlike conventional hydraulic systems, Electric Power Steering uses
energy only when the steering wheel is turned. On straight roads, the
electric motor remains inactive.
Aerodynamics. Carefully optimised aerodynamics measures ensure
an excellent drag coef cient and, therefore, a positive effect on overall
ef ciency. A host of features contribute. They include  at underbody
panelling, the optimised design of the front apron and air intakes and
air ow management in the wheel-arches.
The Optimum Shift Indicator recommends the most suitable gear
for fuel-ef cient driving. The system also recommends when to shift
up or down and adapts to individual driving behaviour.
The eight-speed Steptronic transmission provides signi cantly
higher gearshifting and driving comfort thanks to closely de ned gear
ratios and minimised changes in engine speed at each transition. This
also leads to a perceptible increase in dynamism and reduced fuel
consumption. Additionally, a gear lever allows manual shifts.
Fuel-consumption-friendly ECO PRO mode adapts accelerator pedal
and gearbox responses while also moderating the heating/air conditioning
systems. ECO PRO tips further improve fuel ef ciency with suggestions
that optimise driving behaviour with the bonus range function indicating
how many extra kilometres have been gained in the process. The results,
depending on driving style, can lead to reductions in fuel consumption
by up to  per cent. An additional  ve per cent saving is possible through
the Coasting function, Route-Ahead Assistant and, in conjunction with
the Steptronic transmission and the Navigation System Professional,
ECO PRO Route. The savings potential quoted relates to the  ndings
of internal BMW studies.
BMW EFFICIENT DYNAMICS INNOVATIONS IN THE
BMW  SERIES SALOON AT A GLANCE.