vehicle and any obstructions always remains
with the driver. Even when sensors are pro-
vided, there is a blind spot in which objects can
no longer be detected. The system is also sub-
ject to the physical limits that apply to all forms
of ultrasonic measurement, such as those
encountered with tow bars and trailer cou-
plings, or thin and wedge-shaped objects etc.

Low objects already displayed, e.g. curbs, can
also disappear from the detection area of the
sensors again before or after a continuous tone
already sounds. Higher, protruding objects, e.g.
ledges, cannot be detected. For this reason,
drive with care; otherwise, there is a danger of
personal injury or property damage.
Loud sources of sound, inside and outside the
vehicle, could drown out the PDC signal tone.

Driving stability control

systems

Your BMW is equipped with an extended array
of systems designed to enhance and maintain
vehicle stability under extreme conditions.

ABS Antilock Brake System

ABS prevents locking of the wheels during
braking. Safe steering response is maintained
even during full braking. Active safety is thus
increased.
The ABS is operational every time you start the
engine. Braking safely refer to page

136

CBC Cornering Brake Control

When braking during curves or when braking
during a lane change, driving stability and steer-
ing response are improved further.

Electronic brake-force distribution

The system controls the brake pressure in the
rear wheels to ensure stable braking behavior.

Brake assistant

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

This manual is related to the following products:

550i Sedan 2009 535i xDrive Sedan 2009 535i Sedan 2009 528i xDrive Sedan 2009 528i Sedan 2009 2009 5 Series