BMW 550i xDrive Sedan 2014 - Manual (Page 161)

▷ On slippery ground.
▷ On steep uphill or downhill grades.
▷ When leaves or snow has collected in the
parking space.
Limits of ultrasonic measurement
The detection of objects can reach the physi‐
cal limits of ultrasonic measurement, e.g., in
the following circumstances:
▷ For small children and animals.
▷ For persons with certain clothing, e.g.
coats.
▷ If there is an external disturbance of the ul‐
trasound, e.g. from passing vehicles or
loud machines.
▷ When sensors are dirty, iced over, dam‐
aged or out of position.
▷ Under certain weather conditions, such as
high relative humidity, rain, snowfall ex‐
treme heat or strong wind.
▷ With tow bars and trailer hitches of other
vehicles.
▷ With thin or wedge-shaped objects.
▷ With moving objects.
▷ With elevated, protruding objects such as
ledges or cargo.
▷ With objects with corners and sharp edges.
▷ With objects with a fine surface structure,
such as fences.
▷ For objects with porous surfaces.
Low objects already displayed, e.g., curbs, can
move into the blind area of the sensors before
or after a continuous tone sounds.
The parking assistant may identify parking
spaces that are not suitable for parking.
Malfunction
A Check Control message is displayed.
The parking assistant failed. Have the system
checked.
Distance information
The concept
The system displays a symbol in the Head-up
Display to indicate that the distance behind the
vehicle in front is not sufficient.
General information
The distance is determined by the radar sen‐
sor of the Active Cruise Control.
Hints
Personal responsibility
The display does not relieve the driver of
the responsibility to adapt his or her distance
and driving style to the traffic conditions. Main‐
tain the prescribed safety distance.◀
At a glance
Radar sensor
A radar sensor is located in the front bumper
for detecting vehicles on the road ahead of the
vehicle.
A dirty or covered sensor may hinder the de‐
tection of vehicles.
▷ If necessary, clean the radar sensor. Re‐
move layers of snow and ice carefully.
▷ Do not cover the view field of the radar
sensor.
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Driving comfort Controls
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