BMW X5 3.0i SAV 2006 - Manual (Page 91)

91 n
Ov
er
v
iew
Con
tr
o
ls
M
a
in
te
na
nc
e
Re
p
a
ir
s
Da
ta
In
de
x
PDC Park Distance Control * Antilock Brake System
Signal tones
The distance from an object is indicated
in front with a higher intermittent tone,
and at the rear with a lower intermittent
tone. As the distance between vehicle
and object decreases, the intervals
between the tones become shorter.
The signal tone becomes continuous
once the distance to the nearest object
falls to below roughly 1 ft/30 cm.
The warning signal is canceled after
approx. 3 seconds if you are moving
parallel to a wall.
Malfunctions
The LED flashes and a short steady sig-
nal tone is sounded
> if you activate PDC with the button
> when you select reverse for the first
time after switching on the ignition
> if a malfunction occurs while the PDC
system is active.
Switch the system off and have the
cause of the malfunction corrected by
your BMW Sports Activity Vehicle cen-
ter.
System limits
Even with PDC, final responsibility
for estimating the distance
between the vehicle and any obstruc-
tions always remains with the driver.
Even when sensors are involved, there
is a blind spot in which objects cannot
be detected. This applies especially in
those cases where the system
approaches the physical constraints of
ultrasonic measurement, as occurs with
tow bars and trailer couplings, and in
the vicinity of thin or wedge-shaped
objects. It is also possible that low
objects already displayed, such as curb
edges, may come into the blind spot of
the sensors before a continuous signal
sounds or that higher, protruding
objects, such as ledges, will not be
detected.
Loud sources of sound, inside and out-
side the vehicle, could drown out the
PDC signal tone.
<
Keep the sensors clean and free
of ice or snow in order to ensure
that they will continue to operate effec-
tively.
When using high-pressure washers, do
not spray sensors for long periods and
keep the sprayer at least 4 in/10 cm
away from the sensors.
<
The concept
The ABS Antilock Brake System pre-
vents the wheel brakes from locking
during braking. Safe steering response
is maintained even during full braking.
This increases active safety.
The ABS is operational every time you
start the engine. Safe braking, refer to
page 140.
EBV Electronic brake-force
distribution
EBV controls the brake system's appli-
cation pressure at the rear wheels to
ensure stable deceleration.
DBC Dynamic Brake Control
When the brake pedal is depressed
rapidly, this system automatically gen-
erates a maximum boost of braking
force and thus aids in keeping braking
distances as short as possible during
full braking. This system exploits all of
the benefits provided by ABS.
Do not reduce the pressure on the
brake pedal for the duration of the
brake application. DBC is deactivated
when you release the brake pedal.
Online Edition for Part No. 01 41 0 159 867 - © 07/05 BMW AG