Mercedes-Benz 2005 M-Class Operator's Manual page 245

Cleaning the Parktronic* system
sensors
1 Parktronic* system sensors
Use a mild car wash detergent, such as
Mercedes-Benz approved Car Sham-
poo, with plenty of water to clean the
sensors 1.
When using a steam cleaner or power
washer, aim nozzle only briefly from a min-
imum distance of 12 in (30 cm) at
sensors 1.
To prevent scratches, never apply strong
force and only use a soft, non-scratchy
cloth when cleaning the sensor. Do not
attempt to wipe dirty sensors with a dry
cloth or sponge.
Wiper blades
Fold wiper arms forward.
Warning!
For safety reasons, switch off wipers and re-
move key from steering lock before cleaning
the wiper blades, otherwise the wiper motor
might suddenly turn on and cause injury.
Clean the wiper blades inserts with a
clean cloth and detergent solution.
!
Fold the windshield wiper arms back
onto the windshield before turning the
key in the steering lock.
Hold on to the wiper when folding the
wiper arm back. If released, the force
of the impact from the tensioning
spring could crack the windshield.
G
Window cleaning
Fold wiper arms forward.
Warning!
For safety reasons, switch off wipers and re-
move key from steering lock before cleaning
the windshield, otherwise the wiper motor
might suddenly turn on and cause injury.
Use a window cleaning solution on all
glass surfaces.
An automotive glass cleaner is recom-
mended.
Operation
Vehicle care
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243