BMW Z4 ROADSTER Owner's Manual page 37

Ultrasonic sensors
Ultrasound sensors in the front/rear
bumpers
The ultrasonic sensors for Park
Distance Control are located in
the front and rear bumpers.
Ultrasonic sensors, side
The ultrasonic sensors for Parking Assistant
are located to the side in the front and rear
bumpers.
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:
▷ If the sensors are dirty or covered, e.g., by
stickers.
▷ If the sensor is not aligned correctly, for in-
stance due to parking damage.
▷ After improper paint work on the vehicle in
the area of the sensors.
▷ For small children and animals.
▷ For persons with certain clothing, for in-
stance jacket.
▷ In case of external interference with the
ultrasonics, for instance from passing ve-
Sensors of the vehicle
Online Edition for Part no. 01405A88B63 - VI/23
hicles, loud machines or other ultrasonic
sources.
▷ Under certain weather conditions, e.g., high
moisture, wet conditions, snowfall, cold, ex-
treme 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.
▷ With objects with corners, edges, and
smooth surfaces.
▷ For objects with fine surfaces or objects like
fences, plants, or bushes.
▷ For objects with porous surfaces.
▷ With small and low objects, for instance
boxes.
▷ With soft obstacles or obstacles covered in
foam material.
▷ In automatic car washes.
▷ On uneven surfaces such as speed bumps.
▷ Due to heavy exhaust.
▷ Cargo that extends beyond the perimeter of
the vehicle is not taken into account by the
ultrasonic sensors.
If applicable, a Check Control message will be
displayed when the system limits are reached.
CONTROLS
37
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