windshield wipers MERCEDES-BENZ GL 2010 User Guide

Cleaning the driving systems sensorsXSwitch off the ignition.XClean Distronic system sensor cover : by
hand.
To clean Distronic system sensor cover :
and the bumper area near sensors ; observe
the following:
RUse a mild vehicle wash detergent, such as
Mercedes-Benz approved Car Shampoo,
with plenty of water.
RUse a soft, non-scratching cloth.
! If you use a power washer to clean the
sensor covers, observe the following:
RFollow the instructions provided by the
power washer manufacturer.
RMaintain a distance between the sensor
covers and the nozzle of the power
washer.
Cleaning the rear view camera lensXOnly use clean water and a soft, non-
scratching cloth to clean rear view camera
lens :.
Be careful not to apply wax to rear view
camera lens : when waxing the vehicle. If
necessary, remove the wax using the
Mercedes-Benz approved Car Shampoo with
plenty of water.
! Do not clean the camera and the area
around the camera
Rwith a high-pressure cleaner
Rwith a dry cloth and strong pressure
Rwith aggressive cleaning agents
You could otherwise damage the camera.
Cleaning the windows and the wiper
blades
! Never open the hood when the wiper arms
are folded forward.
GWarning!
For safety reasons, switch off wipers and
remove SmartKey from starter switch before
cleaning the windshield and/or the wiper
blades. Vehicles with KEYLESS-GO: Make
sure the vehicle’s on-board electronics have
status 0. Otherwise, the wiper motor could
suddenly turn on and cause injury.
! Do not pull on the wiper blade inserts.
They could tear.
278Vehicle careOperation
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Correct headlamp adjustment is extremely
important. High beam adjustments
simultaneously aim the low beam. To check
and readjust a headlamp, follow the steps
described:
XPark the vehicle on a level surface 25 feet
(7.6 m) from a vertical test screen or wall.
XMake sure the vehicle has a normal tailgate
load.
XSwitch 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:
XOpen the hood (Y page 228).
The adjustment screws are located under the
cover panel.
XInsert 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.
XAlways 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:
RScrew at arrow =: 0.67° pitch
RScrew at arrow ?: 0.50° pitch
The left and right headlamps must be
adjusted individually.
iIf 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
GWarning!
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.
GWarning!
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.
XRemove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO:
XMake sure the vehicle’s on-board
electronics have status 0 (Y page 80).
334Replacing wiper bladesPractical hints
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