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Driving stability control systems – BMW 745i Sedan 2005 User Manual

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PDC with visual warning

You also enjoy the option of having the sys-
tem show distances to objects on the Con-
trol Display. The Control Display will also
indicate the presence of objects in green
before they are close enough to generate a
signal tone.

Select "PDC pic." from the "Settings" menu
and confirm your selection. This activates
the PDC display.

The display then appears on the Control
Display whenever the PDC is automatically
or manually activated.

The previous display automatically reap-
pears after the system is deactivated.

confirm to return to the previous dis-

play.

System limits

Even with PDC, final responsibility for
estimating the distance between the

vehicle and any obstructions always
remains with the driver. Even when sensors
are involved, there is a blind spot in which
objects cannot be detected. The system is
also subject to the physical limits that apply
to all forms of ultrasonic measurement,
such as those encountered with tow bars
and trailer couplings, as well as thin and

wedge-shaped objects, etc. Low objects
already displayed, e.g. a curb, can also dis-
appear from the detection area of the sen-
sors again before a continuous tone
sounds.
Loud noises from outside and inside the
vehicle may prevent you from hearing the
PDC's signal tone.

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Keep the sensors clean and free of ice
or snow in order to ensure that they

will continue to operate effectively.
Do not apply high pressure spray to the
sensors for a prolonged period of time.
Keep the spray at least 4 in/10 cm away
from the sensors.

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Driving stability control
systems

Your BMW is equipped with an extended
array of systems designed to enhance and
maintain vehicle stability under extreme
conditions. The following section describes
these functions based on DSC and ABS.

ABS Antilock Brake System

ABS enhances active safety by preventing
the wheels from locking under braking.

ABS incorporates CBC and EBV.

Malfunction

The warning lamp lights up yellow
and ABS is switched off. Conven-
tional braking efficiency remains

available without limitations. Have the sys-
tem checked as soon as possible.

CBC Cornering Brake Control

CBC is a supplement to ABS. It provides
further enhancements in vehicle stability
and steering response during lane changes
and cornering at high rates of lateral accel-
eration.

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