Driving comfort
CONTROLS
▷ In large buildings with right angles and
smooth walls, for instance in underground ga‐
rages.
Limits of ultrasonic measurement
Ultrasonic measurements might not function in
the following situations:
▷ In automatic vehicle washes.
▷ Due to heavy exhaust.
▷ For small children and animals.
▷ For persons with certain clothing, for instance
coats.
▷ Due to other ultrasound sources, for instance
sweeping machines, high pressure steam
cleaners or neon lights.
▷ With external interference of the ultrasound,
for instance from passing vehicles or loud
machines.
As soon as the malfunction due to other ultra‐
sound sources is no longer present, the system
is again fully functional.
▷ When sensors are dirty, iced over, damaged
or out of position.
If necessary, switch off automatic PDC activation
on obstacle detection, for instance in vehicle
washes, to reduce false alarms.
▷ Under certain weather conditions such as
high relative humidity, wet conditions, snow‐
fall, extreme heat, or strong wind.
▷ With tow bars and trailer couplings of other
vehicles.
Malfunction
A Check Control message is displayed.
▷ With thin or wedge-shaped objects.
▷ With moving objects.
The range of the sensors is shown as a shaded
area on the Control Display.
▷ With elevated, protruding objects such as
ledges or cargo.
PDC has failed. Have the system checked by a
dealer’s service center or another qualified serv‐
ice center or repair shop.
▷ With objects with corners and sharp edges.
▷ With objects with a fine surface structure
such as fences.
Surround View
▷ For objects with porous surfaces.
▷ If cargo protrudes.
Concept
▷ Low objects already displayed, for instance
curbs, can move into the blind area of the
sensors before or after a continuous tone
sounds.
Surround View comprises various camera assis‐
tance systems that help the driver when parking,
maneuvering, and at complex exits and intersec‐
tions.
False warnings
▷ Rearview camera, refer to page 188.
▷ Side View, refer to page 191.
▷ Top View, refer to page 192.
The system may issue a warning under the fol‐
lowing conditions even though there is no obsta‐
cle within the detection range:
▷ In heavy rain.
Rearview camera
▷ When sensors are very dirty or covered with
ice.
Concept
The rearview camera provides assistance in
parking and maneuvering backwards. The area
▷ When sensors are covered in snow.
▷ On rough road surfaces.
▷ On uneven surfaces, such as speed bumps.
188