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Driving stability control systems, Antilock brake system abs, Brake assistant – BMW 550i xDrive Gran Turismo 2010 User Manual

Page 101: Adaptive brake assistant, Dsc dynamic stability control, Dtc dynamic traction control

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Driving stability control systems

Antilock Brake System ABS

ABS prevents locking of the wheels during brak‐
ing.
The vehicle remains steerable even during full
brake applications, thus increasing active
safety.
ABS is operational every time you start the en‐
gine.

Brake assistant

When you apply the brakes rapidly, this system
automatically produces the maximum braking
force boost. It thus helps to achieve the shortest
possible braking distance during full braking.
This system utilizes all of the benefits provided
by ABS.
Do not reduce the pressure on the brake pedal
for the duration of the full braking.

Adaptive brake assistant

In combination with the Active Cruise Control,
this system ensures that the brakes respond
even more rapidly when braking in critical situa‐
tions. Refer also to

Collision warning, refer to

page 112

.

DSC Dynamic Stability

Control

The concept

DSC prevents traction loss in the driving wheels
when driving away and accelerating.
DSC also recognizes unstable vehicle condi‐
tions, such as fishtailing or nose-diving. Subject
to physical limits, DSC helps to keep the vehicle
on a steady course by reducing engine speed
and by applying brakes at individual wheels.

Adjust your driving style to the situation
An appropriate driving style is always the

responsibility of the driver.
The laws of physics cannot be repealed, even
with DSC.
Therefore, do not reduce the additional safety
margin by driving in a risky manner.◀

Deactivating/activating the DSC OFF

program

The program can be deactivated/activated via

Dynamic Driving Control, refer to page 103

.

Indicator/warning lamps

The indicator lamp flashes: DSC con‐
trols the drive forces and brake forces.
The indicator lamp lights up: DSC has

failed.

DTC Dynamic Traction

Control

The concept

The DTC system is a version of the DSC in which
forward momentum is optimized.
The system ensures maximum forward momen‐
tum on special road conditions, e.g., unplowed
snowy roads, but driving stability is limited.
It is therefore necessary to drive with appropri‐
ate caution.
You may find it useful to briefly activate DTC un‐
der the following special circumstances:

When driving in slush or on uncleared,
snow-covered roads.

When rocking the vehicle or driving off in
deep snow or on loose surfaces.

When driving with snow chains.

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