Sensors of the vehicle
CONTROLS
Ultrasonic sensors, rear
System limits of the ultrasonic
sensors
The detection of objects with ultrasonic
measurements can run into physical limits,
e.g., in the following situations:
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–
–
If the sensors are dirty or covered, e.g.,
by stickers.
If the sensor is not aligned correctly, for
instance due to parking damage.
After improper paint work on the vehi-
cle in the area of the sensors.
The ultrasonic sensors of the parking as-
sistance systems are located in the rear
bumper.
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–
For small children and animals.
For people with specific clothing, e.g.,
coat.
Ultrasonic sensors, side
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–
With obstacles and persons at the edge
of the lane.
In case of external interference with the
ultrasonics, for instance from passing
vehicles, loud machines or other ultra-
sonic sources.
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–
Under certain weather conditions, e.g.,
high moisture, wet conditions, snowfall,
cold, extreme heat, or strong wind.
With tow bars and trailer hitches of
other vehicles.
The ultrasonic sensors for the parking assis-
tance systems are located on the sides of
the front and rear bumpers.
–
–
–
With thin or wedge-shaped objects.
With moving objects.
For elevated, protruding objects, e.g.,
wall ledges.
Functional requirement of the
ultrasonic sensors
For the ultrasonic sensors to function cor-
rectly, the area around the ultrasonic sen-
sors must be kept clean and free.
–
–
With objects with corners, edges, and
smooth surfaces.
In the case objects with fine surfaces or
structures, e.g., wire mesh fences.
Additional information:
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–
–
For objects with porous surfaces.
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–
Washing the vehicle, refer to page 341.
Vehicle care, refer to page 342.
With small and low objects, e.g., boxes.
Low objects already displayed, for in-
stance curbs, can be outside of the de-
tection ranges of the sensors.
–
With soft obstacles or obstacles covered
in foam material.
37
Online Edition for Part no. 01405B37A59 - II/24
English 
