Driving stability control systems, Antilock brake system abs, Brake assistant – BMW 650i xDrive Convertible 2012 User Manual

Page 101: Drive-off 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.

Drive-off assistant

This system supports driving away on gradients.
The parking brake is not required.

1.

Hold the vehicle in place with the foot brake.

2.

Release the foot brake and drive away with‐
out delay.

After the foot brake is released, the vehicle is
held in place for approx. 2 seconds.
Depending on the vehicle load, the vehicle may
roll back slightly.

Driving off without delay
After releasing the foot brake, start driving

without delay, since the drive-off assistant will
not hold the vehicle in place for more than ap‐
prox. 2 seconds and the vehicle will begin rolling
back.◀

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The laws of physics cannot be repealed, even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.◀

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:

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