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When the image of the rearview camera is dis‐
played, the switch can be made to PDC:
"Rear view camera"
System limits
Information
WARNING
The system can react incorrectly or not
at all due to the system limits. There is risk of
accidents or risk of property damage. Observe
the information regarding the system limits
and actively intervene, if needed.◀
Limits of ultrasonic measurement
Ultrasonic measuring might not function under
the following circumstances:
▷ For small children and animals.
▷ For persons with certain clothing, for ex‐
ample coats.
▷ With external interference of the ultra‐
sound, for example 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 couplings 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.
▷ If cargo protrudes.
Low objects already displayed, for example,
curbs, can move into the blind area of the sen‐
sors 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
with 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, for example, in underground
garages.
▷ In automatic car washes.
▷ Through heavy pollution.
▷ Due to other ultrasound sources, for exam‐
ple, sweeping machines, high pressure
steam cleaners or neon lights.
If necessary, switch off automatic PDC activa‐
tion on obstacle detection, for example in car
washes, to reduce false alarms.
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.
Surround View
The concept
Surround View comprises various camera as‐
sistance systems that help the driver when
parking, maneuvering, and at complex exits
and intersections.
▷ Rearview camera, refer to page 148.
Seite 147
Driving comfort Controls
147
Online Edition for Part no. 01 40 2 969 976 - II/16
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