Park distance control (pdc) – BMW 01 41 0 155 307 User Manual

Page 78

The concept

The PDC assists you when you are
parking. A signal warns you of the real
distance to an obstacle. To do this, four
ultrasonic sensors in the rear bumper
measure the distance to the nearest
object. The range for the sensors at the
two rear corners ends approx. 2 ft
(60 cm) from the bumper. The range for
the two center sensors is approx. 4.9 ft
(1.50 meters) wide.

The system starts to operate automati-
cally about one second after you select
"Reverse" with the ignition key in posi-
tion 2. PDC is deactivated when you shift
back out of reverse.

Acoustical signals

The distance to the nearest object is
indicated by a tone sounding at various
intervals. As the distance between
vehicle and object decreases, the inter-
vals between the tones become shorter.
If the distance between the vehicle and
a detected object is less than 1ft
(30 cm), then a continuous tone will go
off.

The warning signal is canceled after
approx. three seconds if the distance to
the obstacle remains constant during
this time (if you are moving parallel to
a wall, for instance).

System malfunctions will be indicated
by a continuous high-pitched tone
when the system is activated the first
time. Please refer the problem to your
BMW center.

The PDC does not remove the
driver's personal responsibility for

evaluating the distance between the
vehicle and any obstacles. 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 limits of ultra-
sonic measurement, as occurs with tow
bars and trailer couplings, and in the
vicinity of thin and painted objects.
Certain sources of sound, such as a
loud radio, could drown the PDC signal
tone.

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

that they continue to operate effec-
tively.
Do not apply high-pressure spray to the
sensors for a prolonged period of time.
Maintain a distance of more than 4 in
(10 cm).

Park Distance Control (PDC)