Mercedes-Benz M-Class 2012 Owners Manual - Manual (Page 122)

X
Remove the SmartKey from the ignition
lock.
X Fold wiper arm : away from the rear
window until it engages.
X Position wiper blade ; at a right angle to
wiper arm :.
X
Hold wiper arm : and press wiper
blade ; in the direction of the arrow until
it releases.
X Remove wiper blade ;.
Installing the wiper blade
X Place new wiper blade ; onto wiper
arm :.
X Hold wiper arm : and press wiper
blade ; in the opposite direction to the
arrow until it engages.
X
Make sure that wiper blade ; is seated
correctly.
X Position wiper blade ; parallel to wiper
arm :.
X Fold wiper arm : back onto the rear
window.
Problems with the windshield wipers
The windshield wipers are obstructed
Leaves or snow, for example, may be
obstructing the windshield wiper movement.
The wiper motor has been deactivated.
X For safety reasons, you should remove the
SmartKey from the ignition lock.
or
X
Switch off the engine using the Start/Stop
button and open the driver's door.
X Remove the cause of the obstruction.
X Switch the windshield wipers back on.
The windshield wipers are inoperative
The windshield wiper drive is malfunctioning.
X Select another wiper speed on the
combination switch.
X
Have the windshield wipers checked at a
qualified specialist workshop.
The spray nozzles are misaligned
The windshield washer fluid from the spray
nozzles no longer hits the center of the
windshield. The spray nozzles are misaligned.
X Have the spray nozzles adjusted at a
qualified specialist workshop.
120
Windshield wipers
Lights
and
windshield
wipers