Mercedes-Benz M-Class 2009 Owners Manual - Manual (Page 365)

Replacing wiper blades
363
Example illustration headlamp driver’side
3
Headlamp vertical adjustment screw
4 Headlamp vertical adjustment screw
X Always turn adjustment screws 3 and 4
simultaneously for vertical adjustment until
the headlamp is adjusted as shown in
1 .
Turn clockwise for upward movement and
counterclockwise for downward
movement.
Graduations:
R Screw 3 : 0.50° pitch
R Screw 4 : 0.67° pitch
The left and right headlamps must be
adjusted individually.
i If it is not possible to obtain a proper
headlamp adjustment, have the system
checked at an authorized Mercedes-Benz
Center. Replacing wiper blades
Safety notes
G Warning!
For safety reasons, switch off wipers and
remove SmartKey from starter switch
(vehicles with KEYLESS-GO: Make sure the
vehicle’s on-board electronics have status
0) before replacing a wiper blade.
Otherwise, the wiper motor could suddenly
turn on and cause injury.
G Warning!
Wiper blades are components that are
subject to wear and tear. Replace the wiper
blades twice a year, preferably in the spring
and fall. Otherwise the windows will not be
properly wiped. As a result, you may not be
able to observe surrounding traffic
conditions and could cause an accident.
! Never open the hood when a front wiper
arm is folded forward.
Hold on to the wiper when folding a wiper
arm back. If released, the force of the
impact from the tensioning spring could
crack the windshield or the rear window.
Practical hints
Z