Mercedes-Benz GL-Class: 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.
Important safety notes
WARNING
The PARKTRONIC is a supplemental system.
It is not intended to, nor does it replace, the
need for extreme care. The responsibility
during parking and other critical maneuvers
...
Warning displays
The warning displays show the distance
between the sensors and the obstacle. The
warning display for the front area is located
on the dashboard above the center air vents.
The warning display fo ...
See also:
Warning Lights, Gauges, and Indicators
WARNING lights and gauges can signal that something is wrong before it becomes
serious enough to cause an expensive repair or replacement. Paying attention to
the warning lights and gauges could ...
Label locations
Warning labels attached
to your vehicle bearing this symbol mean: Do not touch or adjust components until
you have read the relevant instructions in the handbook.
Labels showing this
sy ...
Clock
The analog clock is not connected with any other vehicle system and runs by itself.
To adjust the clock, do the following:
1. Locate the adjustment button, near the lower left corner of the clock.
...






