System limits of the radar
sensors
The radar sensors may have limited functionality
or may not be available at all in the following sit‐
uations, for example:
▷ If the sensors are contaminated, for example
by icing.
▷ If the sensors are obscured, for example by
stickers, foils or a number plate holder.
▷ If the sensor is not correctly aligned, for ex‐
ample following parking damage.
▷ If the area covered by the sensors' radar
beam is obscured, for example due to a pro‐
jecting load.
▷ If the sensors' field of view is obscured, for
example due to garage walls, hedges or
mounds of snow.
▷ After work performed incorrectly on the vehi‐
cle paintwork near to the sensors.
▷ At steep crests/hilltops or dips.
A Check Control message may be displayed if
the system has failed.
Ultrasonic sensors
Ultrasonic sensors in the front/
rear bumpers
The Park Distance Control PDC
ultrasonic sensors are located in
the bumpers.
Side ultrasonic sensors
The Park Assist ultrasonic sensors are located
on the side of the vehicle.
System limits of the ultrasonic
sensors
The physical limits of ultrasound measurement
may be reached when detecting objects in situa‐
tions including the following:
▷ If the sensors are contaminated.
▷ If the sensors are obscured, for example by
stickers.
▷ If the sensor is not correctly aligned, for ex‐
ample following parking damage.
▷ After work performed incorrectly on the vehi‐
cle paintwork near to the sensors.
▷ Small children and animals.
▷ Persons wearing certain types of clothing, for
example a coat.
▷ If there is external interference with the ultra‐
sonic sound, for example by passing vehicles,
loud machines or other ultrasonic sources.
▷ Certain weather conditions; for example, high
humidity, wet conditions, snowfall, cold, ex‐
treme heat or strong wind.
▷ Trailer drawbars and tow hitches of other ve‐
hicles.
▷ Thin or wedge-shaped objects.
▷ Moving objects.
▷ Higher protruding objects, for example pro‐
jecting walls.
Seite 49
Sensors of the vehicle
CONTROLS
49
Online Edition for Part no. 01405A1EA53 - X/20
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