42
3-1. CONTROLS
dips in the road.
If applicable, a Check Control
message is displayed if the sys-
tem fails.
*
: if equipped
The detection of objects with
ultrasound measurements can
run into physical limits, e.g., in
the following situations:
• In case of dirty sensors.
• In case of covered sensors,
such as due to labels.
• If the sensor is not aligned
correctly, for instance due to
parking damage.
• After improperly performed
work on the vehicle paint in
the area of the sensors.
• For small children and ani-
mals.
• For persons with certain cloth-
ing, for instance coats.
• In case of external interfer-
ence of the ultrasound, for
instance from passing vehi-
cles, loud machines or other
ultrasonic sources.
• Under certain weather condi-
tions, e.g., high relative
humidity, wet conditions,
snowfall, cold, extreme heat,
or strong wind.
• With tow bars and trailer cou-
plings of other vehicles.
• With thin or wedge-shaped
objects.
• With moving objects.
• With elevated, protruding
objects such as ledges.
• With objects with corners,
edges, and smooth surfaces.
• With objects with a fine sur-
face structure such as fences.
• For objects with porous sur-
faces.
• With small and low objects,
for instance boxes.
• With soft obstacles or obsta-
cles covered in foam material.
• With plants and bushes.
• In automatic car washes.
• On uneven surfaces, such as
speed bumps.
• Due to heavy exhaust.
• Cargo that extends beyond
the perimeter of the vehicle is
not taken into account by the
ultrasonic sensors.
If applicable, a Check Control
message is displayed if the sys-
tem fails.
Ultrasound sensors
Ultrasound sensors in the
front/rear bumpers*
Ultrasound sensors of
the Parking Sensor, for
instance in the bum-
pers.
System limits of the ultra-
sound sensors
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