BMW 525i Sedan 2005 - Manual (Page 77)

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Technology for comfort, convenience and
safety
PDC Park Distance Control*
The concept
The PDC assists you when you are parking.
Acoustic signals and an optical display
* alert
you to the approach of an object from behind
your vehicle. To measure the distance, there
are four ultrasonic sensors in each bumper. The
sensors at the front and at the two rear corners
have a range of approx. 24 in/60 cm; the rear
middle sensors have approx. 5 ft/1.50 m.
PDC is a parking aid that can indicate
objects when they are approached
slowly, as is usually the case when parking.
Avoid approaching an object at high speed, as
otherwise the physical circumstances would
mean that the system warning was too late.
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Automatic mode
When the ignition key is in position 2, the sys-
tem automatically assumes operational status
after a few seconds each time you shift into
reverse or move the selector lever into the R
position.
Wait this short period before driving. The sys-
tem switches itself off when you shift out of
reverse.
Manual mode
Press button, the LED lights up.
Deactivating manual mode
Press the button again; the indicator lamp goes
out.
The system is automatically deactivated once
the vehicle travels approx. 165 ft/50 m or
exceeds a speed of roughly 20 mph/30 km/h;
the indicator lamp goes out. You can reactivate
the system manually as needed.
Signal tones
When nearing an object, the position is corre-
spondingly indicated by an interval tone. Thus,
an object detected to the left rear of the vehicle
will be indicated by a signal tone from the left
rear speaker, etc. As the distance between
vehicle and object decreases, the intervals
between the tones become shorter. If the dis-
tance to the nearest object falls to below
roughly 1 ft/30 cm, then a continuous tone
sounds.
The warning signal is canceled after approx.
3 seconds, if you are moving parallel to a wall.
Malfunction
The LED in the button flashes and a message
appears on the Control Display. PDC is mal-
functioning. Have the system checked.
To prevent this problem, keep the sensors
clean and free of ice or snow in order to ensure
that they will continue to operate effectively.
PDC with visual warning*
You can also have the system show distances
to objects on the Control Display. The Control
Display also indicates objects that are farther
away before a signal tone sounds.
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