BMW M3 SEDAN Owner's Manual page 37

Radar sensors, side, rear
The radar sensors are located in the bumper.
System limits of the radar
sensors
The radar sensors may not be fully functional or
may not be available in the following situations:
▷ If sensors are dirty, such as due to icing.
▷ If sensors are covered, such as by labels,
films or a number plate baseplate.
▷ If the sensor is not aligned correctly, for in‐
stance due to parking damage.
▷ If the radiation range of the sensors is cov‐
ered, e.g., by protruding cargo.
▷ If the field of view of the sensors is covered,
e.g., by garage walls, hedges or snow hills.
▷ After improperly performed work on the vehi‐
cle paint in the area of the sensors.
▷ On steep hilltops or in sharp dips in the road.
If applicable, a Check Control message is dis‐
played if the system fails.
Ultrasound sensors
Ultrasound sensors in the front/
rear bumpers
The ultrasound sensors of the
Park Distance Control PDC are lo‐
cated in the bumpers.
Sensors of the vehicle
Online Edition for Part no. 01405A1E4B0 - X/20
Ultrasonic sensors, side
The ultrasound sensors of the Automatic Parking
Assistant are located on the side of the vehicle.
System limits of the ultrasonic
sensors
The detection of objects with ultrasonic meas‐
urements 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 la‐
bels.
▷ If the sensor is not aligned correctly, for in‐
stance due to parking damage.
▷ After improperly performed work on the vehi‐
cle paint in the area of the sensors.
▷ For small children and animals.
▷ For persons with certain clothing, for instance
coats.
▷ In case of external interference of the ultra‐
sound, for instance from passing vehicles,
loud machines or other ultrasonic sources.
▷ Under certain weather conditions, e.g., high
relative humidity, wet conditions, snowfall,
cold, extreme heat, or strong wind.
▷ With tow bars and trailer couplings of other
vehicles.
▷ With thin or wedge-shaped objects.
▷ With moving objects.
▷ With elevated, protruding objects such as
ledges.
CONTROLS
37