Driving Stability Control Systems - BMW X5 M Owner's Manual

Driving stability control systems

Vehicle features and options
This chapter describes all standard, country-
specific and optional features offered with the
series. It also describes features that are not
necessarily available in your car, e. g., due to
the selected options or country versions. This
also applies to safety-related functions and
systems.
Antilock Brake System ABS
ABS prevents locking of the wheels during
braking.
The vehicle contains its steering power 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 greatest possible
braking force boost. It reduces the braking dis‐
tance to a minimum during emergency stop.
This system utilizes all of the benefits provided
by ABS.
Do not reduce the pressure on the brake pedal
for the duration of the emergency stop.
Drive-off assistant
This system supports driving off on inclines.
The parking brake is not required.
1. Hold the vehicle in place with the foot
brake.
2. Release the foot brake and drive off with‐
out delay.
Driving stability control systems
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After the foot brake is released, the vehicle is
held in place for approx. 2 seconds.
Depending on the vehicle load or when a trailer
is used, the vehicle may roll back slightly.
Driving off without delay
After releasing the foot brake, start driv‐
ing without delay, since the drive-off assistant
will not hold the vehicle in place for more than
approx. 2 seconds and the vehicle will begin to
roll back.◀
Dynamic Performance
Control
The Dynamic Performance Control increases
both the agility of the vehicle as well as the
lane stability.
The system seamlessly handles the distribu‐
tion of the drive torque between the two rear
wheels.
Depending on the situation, the drive torque is
shifted from the wheel on the inside of the
curve to the wheel on the outside of the curve
or vice-versa.
To increase the maneuverability, the rear
wheel on the outside of the curve is acceler‐
ated when the driving style is correspondingly
sporty.
The steering responds directly; simultane‐
ously, the understeering tendency of the four-
wheel drive is reduced.
With the oversteering tendency, the system
exerts a stabilizing effect by accelerating the
rear wheel on the inside of the curve.
The system noticeably improves the traction
and simultaneously increases the driving
safety, especially on road surfaces having fluc‐
tuating coefficients of friction.
Controls
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