BMW E87 2009, Руководство пользователя, Страница: 74 / 248

Tech
nic
al featu
res fo
r dr
iving comfort and
safety
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Manual operation
The LED above the button flashes in addition.
PDC with optical warning
The fact that the vehicle is approaching an
object is shown on the Control Display. Objects
that are further away from the car will appear on
the Control Display before an audible warning
signal is given. The display is shown on the
Control Display as soon as PDC is switched on.
System limitations
PDC is no substitute for your personal
assessment of obstructions. The sensors
have certain dead areas in which objects cannot
be detected. In addition, the identification of
objects may not be possible if the physical lim-
its of the ultrasonic measuring principle are
exceeded, for instance with trailer noses and
hitches, and thin or wedge-shaped objects.
Low objects already indicated, such as kerbs,
may enter the sensors' dead areas before or
after a continuous audible signal is given.
Higher, protruding objects such as ledges may
not be detectable. Loud sound sources outside
or inside the car can drown out the PDC signal.
For this reason, drive prudently, as otherwise
there is a risk of personal injury or damage to
property.
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Driving stability control
systems
Your BMW has a number of systems that help
to maintain the vehicle's stability even in
adverse driving conditions.
ABS Anti-lock Brake System
ABS prevents the wheels from locking when
the brakes are applied. The car remains steera-
ble even under full braking. This increases
active safety.
ABS is ready to operate each time the engine is
started. Safe braking, see page
100 .
Electronic Brake Force Distribution
EBV
The system regulates the braking pressure on
the rear wheels in order to stabilise the braking
behaviour.
Dynamic Brake Control DBC
If the brake is pressed down rapidly, this system
automatically boosts the braking force to a
maximum and thus helps to keep the braking
distance as short as possible when a full brake
application is made. It also makes full use of the
advantages offered by ABS.
Maintain pressure on the brake as long as full
braking is required.
Dynamic Stability Control DSC
DSC prevents the driving wheels from losing
traction when you pull away from rest or accel-
erate. The system also recognises unstable
driving conditions, for example if the rear of the
car is about to swerve or if momentum is acting
at an angle past the front wheels. In these cases
DSC reduces engine output and applies the
brakes at individual wheels, helping, within the
limits imposed by the laws of physics, to keep
the car safely on course.
Not even DSC can overcome the laws of
physics. It is therefore the driver's
responsibility to adopt a suitable driving style in
every situation. Do not undermine the addi-
tional safety afforded by this system by taking
driving risks as otherwise there is a danger that
accidents might occur.
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Online Edition for Part no. 01 41 2 602 816 - © 08/09 BMW AG Online Edition for Part no. 01 41 2 602 816 - © 08/09 BMW AG