Ultrasonic sensors, rear
The ultrasonic sensors of the parking assis-
tance systems are located in the rear bumper.
Side ultrasonic sensors
The ultrasonic sensors of the parking assis-
tance systems are located on the side in the
front and rear bumpers.
Functional requirement of the
ultrasonic sensors
The areas of the ultrasonic sensors are clean
and clear.
For further information:
▷
Washing the vehicle, see page 342.
▷ Vehicle care, see page 343.
System limits of the ultrasonic
sensors
The physical limits of ultrasound measurement
may be reached when detecting objects in sit-
uations involving the following, for example:
▷
If the sensors are dirty or covered, e.g. by
stickers.
▷ If the sensors are misaligned, for example
due to parking damage.
▷ After work performed incorrectly on the ve-
hicle paintwork near to the sensors.
▷ Small children and animals.
▷ Persons wearing certain types of clothing,
for example a jacket.
▷ Obstacles and people at the edge of the
driving lane.
▷ If there is external interference with the ul-
trasonic sound, for example by passing ve-
hicles, loud machines or other ultrasonic
sources.
▷ Certain weather conditions; for example,
high air humidity, wet conditions, snowfall,
cold, extreme heat or strong wind.
▷ For trailer towbars and tow hitches of other
vehicles.
▷ Thin or wedge-shaped objects.
▷ Moving objects.
▷ Higher protruding objects, for example pro-
jecting walls.
▷ Objects with corners, edges and smooth
surfaces.
▷ For objects with fine surfaces or structures,
e.g. wire mesh fences.
▷ Objects with porous surfaces.
▷ Small and low objects such as boxes.
▷ Low objects already displayed, for exam-
ple, kerbs, can be outside of the detection
ranges of the sensors.
▷ Soft obstacles or obstacles covered in foam
material.
▷ Plants or shrubs.
▷ In washing bays and car washes.
▷ On uneven surfaces, for example speed
bumps.
▷ In the presence of dense exhaust fumes.
Seite 44
CONTROLS
Sensors in the vehicle
44
Online Edition for Part no. 01405A5E758 - VI/22
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