Mercedes-Benz GL-Class 2010 Owners Manual - Manual (Page 336)

Correct headlamp adjustment is extremely
important. High beam adjustments
simultaneously aim the low beam. To check
and readjust a headlamp, follow the steps
described:
X Park the vehicle on a level surface 25 feet
(7.6 m) from a vertical test screen or wall.
X Make sure the vehicle has a normal tailgate
load.
X Switch on the low beam headlamps L.
If the beam does not show a beam pattern as
indicated in the figure left, then follow the
steps below:
X Open the hood ( Y page 228).
The adjustment screws are located under the
cover panel.
X Insert a suitable tool into the openings in
the panel cover. The direction of arrows
= and ? indicate the angle in which the
tool has to be inserted in oder to access the
adjustment screws.
X Always turn the adjustment screws equally
for vertical adjustment until the headlamp
is adjusted as shown in :. Turn clockwise
for upward movement and
counterclockwise for downward
movement.
Graduations:
R
Screw at arrow =: 0.67° pitch
R
Screw at arrow ?: 0.50° 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 the wipers and
remove the SmartKey from the 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 wiped
properly. 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.
Do not allow a wiper arm to contact the
windshield glass or the rear window
without a wiper blade inserted.
Mercedes-Benz recommends that you have
this work carried out at an authorized
Mercedes-Benz Center.
X Remove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO:
X Make sure the vehicle’s on-board
electronics have status
0 ( Y page 80).
334
Replacing wiper blades
Practical hints
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2009-09-11T12:30:16+02:00 - Seite 334