light MERCEDES-BENZ GL 2011 Repair Manual

Changing the rear bulbs
Opening/closing the side trim
You must open the side trim panel in the
cargo compartment before you can change
the bulbs in the tail lamps.
Left-hand side trim panel
XTo open: turn release knob : 90° in the
direction of the arrow and remove side trim
panel ;.XInsert a suitable object, e.g. a coin, into the
slots of release knobs =.XTurn release knobs = 90° in the direction
of the arrow and remove stowage
compartment ?.XTo close: insert stowage
compartment ? and turn release
knobs = in the opposite direction to the
arrow until the slots on the release knobs
are in a vertical position.XInsert side trim panel ; and turn release
knob : 90° in the opposite direction to
the arrow.Right-hand side trim panelXTo open: insert a suitable object, e.g. a
coin, into the slot of release knob : on
side trim panel ;.XTurn release knob : 90° in the direction
of the arrow and remove side trim
panel ;.XTo close: insert side trim panel ; and turn
release knob : 90° in the opposite
direction to the arrow.
Tail lamps with LEDs
:Rear fog lamp ;Backup lamp XSwitch off the lights.XOpen the cargo compartment.XOpen the side trim panel ( Y page 123).XTurn the corresponding bulb holder
counter-clockwise and remove it.XRemove the bulb from the bulb holder.XInsert the new bulb into the bulb holder.Changing bulbs123Lights and windshield wipersBA 164.8 USA, CA Edition B 2011; 1; 2, en-USd2sboikeVersion: 3.0.3.52010-04-21T15:08:44+02:00 - Seite 123Z

XInsert the bulb holder and turn it clockwise.XClose the side trim panel (Y page 123).
License plate lamp
XSwitch off the lights.XOpen the tailgate.XRemove screws :.XRemove the license plate lamp.XReplace the bulb.XInsert the license plate lamp.XReplace and tighten screws :.
Setting the headlamps
:V vertical axis;H (horizontal) height, measured from the
center
Setting the headlamps correctly is extremely
important. Setting the high-beam headlamps
also sets the low-beam headlamps. (The term
headlamps covers both high and low beam.)
To check and adapt the headlamp setting,
proceed as follows:
XPark the vehicle on level ground at a
distance of 25 feet (7.6 m) from a wall or
similar.
XMake sure that the vehicle load is in the
normal range.
XSwitch on the L low-beam headlamps.
If the light of the headlamps is not distributed
as shown in the illustration above, follow the
instructions below:
XOpen the hood (Y page 294).
The adjustment screws are located under the
cover.
XInsert a suitable tool into the openings in
the cover. The directions of arrow =
and ? indicate the angle at which the tool
needs to be inserted in order to reach the
adjustment screws.
XTurn both screws uniformly until the
vertical setting corresponds to :. Turn the
screws clockwise to adjust the headlamp
upwards and counterclockwise to adjust it
downwards.
Gradation:
RScrew at arrow =: 0.67˚ angle of
inclination
RScrew at arrow ?: 0.50˚ angle of
inclination
The left and right headlamp need to be
adjusted individually.
iIf it is not possible to adjust the
headlamps accurately, have the
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adjustment performed at an authorized
Mercedes-Benz Center.
Windshield wipers
Important safety notes
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.
! Do not operate the windshield wipers
when the windshield is dry, as this could
damage the wiper blades. Moreover, dust
that has collected on the windshield/rear
window can scratch the glass if wiping
takes place when the windshield/rear
window is dry.
If it is necessary to switch on the windshield
wipers in dry weather conditions, always
use washer fluid when operating the
windshield wipers.
Switching the windshield wipers on/
off
Combination switch
1$ Windshield wipers off2Ä Intermittent wipe, low 123Å
Intermittent wipe, high 134°
Continuous wipe, slow5¯ Continuous wipe, fastBí Single wipe/ î To wipe the
windshield using washer fluidXSwitch on the ignition.XTurn the combination switch to the
corresponding position.
! Intermittent wiping with rain sensor: due
to optical influences and the windshield
becoming dirty in dry weather conditions,
the windshield wipers may be activated
inadvertently. This could then damage the
windshield wiper blades or scratch the
windshield.
For this reason, you should always switch
off the windshield wipers in dry weather.
In the Ä or Å position, the appropriate
wiping frequency is set automatically
according to the intensity of the rain. In
the Å position, the rain sensor is more
sensitive than in the Ä position, causing
the windshield wiper to wipe more frequently.
Intermittent wiping is interrupted when you
stop the vehicle and open a front door. This
12 Rain sensor set to low sensitivity.
13 Rain sensor set to high sensitivity.Windshield wipers125Lights and windshield wipersBA 164.8 USA, CA Edition B 2011; 1; 2, en-USd2sboikeVersion: 3.0.3.52010-04-21T15:08:44+02:00 - Seite 125Z

prevents a person from being splashed
inadvertently when getting into or out of the
vehicle.
Intermittent wiping continues when all doors
are closed and
R you shift the automatic transmission to
drive position D or reverse gear R
or
R you change the wipe setting on the
combination switch.
i To prevent smearing on the windshield or
noise when wiping, wipe the windshield
occasionally with washer fluid.
Switching the rear window wiper on/
off
Combination switch
:è Switch2ô To wipe with washer fluid3I To switch on intermittent wiping40 To switch off intermittent wiping5ô To wipe with washer fluidXTurn the key to position 1 or 2 in the ignition
lock.XTurn switch : on the combination switch
to the corresponding position.
When the rear window wiper is switched on,
the icon appears in the instrument cluster.Replacing the wiper blades
Important safety notesGWarning
For safety reasons, switch off the windshield
wipers and remove the key from the ignition
lock before changing the wiper blades
(vehicles with KEYLESS-GO: make sure that
the on-board electronics are in state 0).
Otherwise, the wiper motor could be switched
on suddenly and cause injury.
! To avoid damaging the wiper blades,
make sure that you touch only the wiper
arm of the wiper.
! Never open the hood if a windshield wiper
arm has been folded away from the
windshield.
Never fold a windshield wiper arm without
a wiper blade back onto the windshield.
Hold the windshield wiper arm firmly when
you change the wiper blade. If you release
the windshield wiper arm without a wiper
blade and it falls onto the windshield, the
windshield can be damaged by the force of
the impact.
Mercedes-Benz recommends that you have
the wiper blades replaced by a qualified
specialist workshop, e.g. at an authorized
Mercedes-Benz Center.
Replacing the windshield wiper blades
Removing the wiper blades
XRemove the SmartKey from the ignition
lock.XFold the wiper arm away from the
windshield.126Windshield wipersLights and windshield wipers
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XPress both release clips ;.XFold wiper blade : in the direction of
arrow = away from wiper arm ?.XRemove wiper blade : in the direction of
arrow A.
Installing the wiper blades
XPosition the new wiper blade : with
recess B on lug A.XFold wiper blade : in the direction of
arrow = onto the wiper arm, until retaining
clips ; engage in bracket ?.XMake sure that wiper blade : is seated
correctly.XFold the wiper arm back onto the
windshield.
Replacing the rear window wiper blade
GWarning
The wiper arm could be set in motion and
injure you if the windscreen wipers are
switched on.
Remove the key from the ignition lock before
replacing the wiper blade.
Removing the wiper bladeXRemove the key from the ignition lock.XFold wiper arm : away from the rear
window until it engages.XPosition wiper blade ; at a right angle to
wiper arm :.XHold wiper arm : and press wiper
blade ; in the direction of the arrow until
it is released.XRemove wiper blade ;.
Installing the wiper blade
XPlace new wiper blade ; onto wiper
arm :.XHold wiper arm : and press wiper
blade ; in the opposite direction to the
arrow until it engages.XMake sure that wiper blade ; is seated
correctly.XPosition wiper blade ; parallel to wiper
arm :.XFold 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.
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XFor safety reasons, you should remove the
key from the ignition lock.
or
XSwitch off the engine using the Start/Stop
button and open the driver's door.XRemove the cause of the obstruction.XSwitch the windshield wipers back on.
The windshield wipers are not working
The windshield wiper drive is malfunctioning.
XSelect another wiper speed on the
combination switch.XHave the windshield wipers checked at a
qualified specialist workshop.128Windshield wipersLights and windshield wipers
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Control panel for the dual-zone automatic climate controlFunctioniNotes/tips:Sets the temperature, leftSet the temperature to 72 ‡ (22 †).;Sets climate control to
automaticActivate climate control using the à and Á
buttons. The indicator lamps in the à and Á
buttons light up.=Defrosts the windshieldOnly use the "defrosting" function briefly until the
windshield is clear again.?Increases the airflowADirects the airflow through the
defroster ventsBSwitches cooling with air
dehumidification on/offActivate climate control using the à and Á
buttons. The indicator lamps in the à and Á
buttons light up.Switches the residual heat
function on/offUse the residual heat function if you want to heat or
ventilate the vehicle interior when the ignition is
switched off. The "residual heat" function can only be
activated or deactivated with the ignition switched
off.CSets the temperature, rightSet the temperature to 72 ‡ (22 †).DSwitches rear-compartment
climate control on/offEDirects the airflow through the
center and side air ventsFDirects the airflow to the
footwells and side air ventsGDisplays the airflow levelHReduces the airflowOverview of climate control systems131Climate controlBA 164.8 USA, CA Edition B 2011; 1; 2, en-USd2sboikeVersion: 3.0.3.52010-04-21T15:08:44+02:00 - Seite 131Z

FunctioniNotes/tipsISwitches the rear window
heating on/offJActivates/deactivates air-
recirculation modeOnly use "air-recirculation" mode briefly, e.g. if there
are unpleasant outside odors or when in a tunnel. The
windows could otherwise fog up as, in air-
recirculation mode, no fresh air is drawn into the
vehicle.KInterior temperature sensorLSwitches climate control on/
offActivate climate control using the à and Á
buttons. The indicator lamps in the à and Á
buttons light up.
Control panel for the multi-zone automatic climate control
For USA only
Functioni Notes/tipsFront control panel:Sets the temperature, leftSet the temperature to 72 ‡ (22 †).;Sets climate control to
automaticActivate climate control using the à and Á
buttons. The indicator lamps in the à and Á
buttons light up.132Overview of climate control systemsClimate control
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FunctioniNotes/tips=Defrosts the windshieldOnly use the "defrosting" function briefly until the
windshield is clear again.?Increases the airflowADirects the airflow through the
defroster ventsBSwitches cooling with air
dehumidification on/offActivate climate control using the à and Á
buttons. The indicator lamps in the à and Á
buttons light up.Switches the residual heat
function on/offUse the residual heat function if you want to heat or
ventilate the vehicle interior when the ignition is
switched off. The "residual heat" function can only be
activated or deactivated with the ignition switched
off.CSets the temperature, rightSet the temperature to 72 ‡ (22 †).DSwitches rear-compartment
climate control on/offEDirects the airflow through the
center and side air ventsFDirects the airflow to the
footwells and side air ventsGDisplays the airflow levelHReduces the airflowISwitches the rear window
heating on/offJActivates/deactivates air-
recirculation modeOnly use "air-recirculation" mode briefly, e.g. if there
are unpleasant outside odors or when in a tunnel. The
windows could otherwise fog up as, in air-
recirculation mode, no fresh air is drawn into the
vehicle.KInterior temperature sensorLSwitches climate control on/
offActivate climate control using the à and Á
buttons. The indicator lamps in the à and Á
buttons light up.Rear control panelMIncreases the airflowOverview of climate control systems133Climate controlBA 164.8 USA, CA Edition B 2011; 1; 2, en-USd2sboikeVersion: 3.0.3.52010-04-21T15:08:44+02:00 - Seite 133Z

FunctioniNotes/tipsNSets the temperatureSet the temperature to 72 ‡ (22 †).OSets the rear-compartment
climate control to automaticPDirects the airflow through the
rear air ventsQDirects the airflow through the
footwell ventsRSwitches rear-compartment
climate control on/offSReduces the airflow
For Canada only
Functioni Notes/tipsFront control panel:Sets the temperature, leftSet the temperature to 72 ‡ (22 †).;Sets climate control to
automaticActivate climate control using the à and Á
buttons. The indicator lamps in the à and Á
buttons light up.=Directs the airflow through the
defroster vents, left134Overview of climate control systemsClimate control
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