Range of the sensors
General notes
The sensors must be free of dirt, ice and slush; otherwise they may not function correctly. Clean the sensors regularly, taking care not to scratch or damage them.

Side view

Top view
Front sensors

Rear sensors

When parking, pay particular attention to
objects above or below the sensors, such
as flower pots or trailer drawbars.
PARKTRONIC does not detect such objects
when they are in the immediate vicinity of
the vehicle. You could damage the vehicle
or the objects.
The sensors may not detect snow and other
objects that absorb ultrasonic waves.
Ultrasonic sources such as an automatic
car wash, the compressed-air brakes on a
truck or a pneumatic drill could cause
PARKTRONIC to malfunction.
PARKTRONIC may not function correctly on
uneven terrain.
Minimum distance

If there is an obstacle within this range, the relevant warning displays light up and a warning tone sounds. If the distance falls below the minimum, the distance may no longer be shown.
See also:
Transfer case
This section is only valid for vehicles with 4- wheel drive (4MATIC). Power is
always transmitted to both axles.
Performance tests may only be carried out on a 2-axle dynamometer. The brake
sy ...
Increasing the volume
In some cases, the volume of the AUX device
may be quieter or louder, or the usual
maximum possible volume cannot be
reached. On some devices, it is possible to
adjust the volume separately. I ...
Additives
Only use DEF in accordance with ISO
22241. Do not use additives with DEF and
do not dilute DEF with water. This may
destroy the BlueTEC exhaust gas
aftertreatment system. ...
