BMW 550i xDrive Sedan 2014 - Manual (Page 150)

▷ When the vehicle moves away from an ob‐
ject by more than approx. 4 in/10 cm.
▷ When selector lever position P is engaged
on vehicles with automatic transmission.
Volume
The volume of the PDC signal tone can be ad‐
justed similar to the tone and volume settings
of the radio.
The setting is stored for the remote control
currently in use.
Visual warning
The approach of the vehicle to an object can
be shown on the Control Display. Objects that
are farther away are displayed on the Control
Display before a signal tone sounds.
A display appears as soon as Park Distance
Control (PDC) is activated.
The range of the sensors is represented in the
colors red, green and yellow.
When the image of the rearview camera is dis‐
played, the switch can be made to PDC:
"Rear view camera"
System limits
Limits of ultrasonic measurement
The detection of objects can reach the physi‐
cal limits of ultrasonic measurement, e.g., in
the following circumstances:
▷ For small children and animals.
▷ For persons with certain clothing, e.g.
coats.
▷ If there is an external disturbance of the ul‐
trasound, e.g. from passing vehicles or
loud machines.
▷ When sensors are dirty, iced over, dam‐
aged or out of position.
▷ Under certain weather conditions, such as
high relative humidity, rain, snowfall ex‐
treme heat or strong wind.
▷ With tow bars and trailer hitches of other
vehicles.
▷ With thin or wedge-shaped objects.
▷ With moving objects.
▷ With elevated, protruding objects such as
ledges or cargo.
▷ With objects with corners and sharp edges.
▷ With objects with a fine surface structure,
such as fences.
▷ For objects with porous surfaces.
Low objects already displayed, e.g., curbs, can
move into the blind area of the sensors before
or after a continuous tone sounds.
False warnings
PDC may issue a warning under the following
conditions even though there is no obstacle
within the detection range:
▷ In heavy rain.
▷ When sensors are very dirty or covered in
ice.
▷ When sensors are covered in snow.
▷ On rough road surfaces.
▷ On uneven surfaces, such as speed
bumps.
▷ In large buildings with right angles and
smooth walls, e.g., in underground ga‐
rages.
▷ In heavy exhaust.
▷ Due to other ultrasound sources, e.g.,
sweeping machines, high pressure steam
cleaners or neon lights.
Malfunction
A Check Control message is displayed.
The range of the sensors is shown as a shaded
area on the Control Display.
PDC has failed. Have the system checked.
To ensure full operability:
▷ Keep the sensors clean and free of ice.
Seite 150
Controls Driving comfort
150
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