ignition MERCEDES-BENZ GL SUV 2012 Owner's Guide

in the instrumen
tcluster lights up and the
daytime drivin glights go out or are dimmed.
Dipped-beam hea dlamps G
WARNING
If the light switch is se ttoÃand it is foggy,
snowing or ther eispoor visibility, the dipped-
beam headlamps will not com eonautomati-
cally. This could endanger you and others. In
such situations tur nthe light switc htoL .
The automatic headlamp feature is only an
aid. The driver is responsible for the vehicle's
lightin gatall times. 1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment cluster lighting
4Ã Automatic headlamp mode, control-
led by the light sensor
5L Dipped-beam/main-beam head-
lamps
BR Rear foglamp
Even if the light senso rdoes not detec tthat
is dark, the side lamps and dipped-beam
headlamps switc honwhen the key is inserted
int ot he ignition lock and the light switc his
set to the Lposition. This is aparticularly
useful function in the event of rain and fog.
X To switch on the dipped-beam head-
lamps: turn the key in the ignition lock to
position 2or start the engine.
X Turn the light switch to L.
The green Lindicator lamp in the instru-
ment cluster lights up. Rear foglamp
1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment cluster lighting
4Ã Automatic headlamp mode, control-
led by the light sensor
5L Dipped-beam/main-beam head-
lamps
BR Rear foglamp
The rear foglamp improves visibility of your
vehicle for the traffic behind in the event of
heavy fog. Pleas etake note of the country-
specific regulations for the use of rear fog-
lamps.
X To switch on the rear foglamp: turn the
key in the ignition lock to position 2or start
the engine.
X Turn the light switch to LorÃ.
X Press the Rbutton.
The yellow Rindicator lamp in the
instrumen tcluster lights up.
X To switch off th erear foglamp: press the
R button.
The yellow Rindicator lamp in the
inst rument cluster goes out.
Side lamps
! If the bat tery ha sbeen excessively dis-
charged, the side lamps or parking lamps
are automatically switched off to enable
the nex tengine start. Alway sparky our
vehicl esafely and sufficiently li taccording
to lega lstandards. Avoi dthe contin uous 120
Exterio
rlightingLight sand windscreen wipers

use of the
Tside lamps for several
hours. If possible, switc hontheX right
or the Wleft par king lamp. 1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
mentcluster lighting
4Ã Automatic headlamp mode, control-
led by the light sensor
5L Dipped-beam/main-beam head-
lamps
BR Rear foglamp
X To switch on: turnlight switc htoT .
The green Tindicator lam pinthe instru-
men tcluster lights up.
Parking lamps 1W
Left-handparking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
mentcluster lighting
4Ã Automatic headlamp mode, control-
led by the light sensor 5L
Dipped-beam/main-beam head-
lamps
BR Rear foglamp
Switchin gonthe par king lamps ensures the
correspondin gside of the vehicle is illumina-
ted.
X To switch on th eparki ng lamps: the key
is not in the ignition lock or it is in posi-
tion 0.
X Turn the light switc htoW(left-han dside
of the vehicle) or X(right-han dside of
the vehicle). Combination switch
Turn signals :
Main-beam headlamps
; Turn signal, right
= Headlamp flasher
? Turn signal, left
X To indicate briefly: press the combination
switc hbrieflytot he pressur epoint in the
direction of arrow ;or?.
The correspondin gturns ignal flashes three
times.
X To indicate: press the combination switch
beyond the pressure point in the direction
of arrow ;or?. Exterior lighting
121Lights and windsc reen wipers Z

Main-beam headlamps
:
Main-beam headlamps
; Turn signal, right
= Headlam pflasher
? Turn signal, left
X To switch on the main-beam head-
lamps: turn the key in the ignitio nlock to
position 2or star tthe engine.
X Tur nthe light switch to LorÃ.
X Press the combination switch beyond the
pressure point in the direction of
arrow :.
In the Ãposition, the main-beam head-
lamps ar eonly switched on whe nitisdark
and the engine is running.
The blue Kindicator lamp in the instru-
ment cluster lights up when the main-beam
headlamps are switched on.
X To switch off the main-beam head-
lamps: move the combinatio nswitch back
to its normal position.
The blue Kindicator lamp in the instru-
ment cluster goes out.
i Vehicles with Adaptive Highbeam Assist:
when Adaptive Highbeam Assist is active,
it controls activation of the main-beam
headlamps (Y page124). Headlamp flasher :
Main-beam headlamps
; Turn signal, right
= Headlam pflasher
? Turn signal, left
X To switch on: turn the key in the ignition
lock to position 1or 2,ors tart the engine.
X Pul lthe combination switch in the direction
of arrow =. Hazard warning lamps
X
To switch on th ehazard warnin glamps:
press button :.
All turn signals flash .Ifyou now switch on
at urn signa lusing the combination switch,
only the tur nsigna llam pont he corre-
sponding side of the vehicle will flash.
X To switch of fthe hazard warn ing
lamps: press button :.122
Exterior lightingLights and windscreen wipers

The hazar
dwarning lamps automatically
switch on if:
R an airbag is deployed.
R the vehicle decelerates rapidly from a
spee dofm ore than 70 km /hand come sto
as tandstill.
The hazard warning lamps switch off auto-
maticall yifthe vehicle reaches aspeed of
over 10 km/ hagain after afull brake appli-
cation.
i The hazard warning lamps still operate if
the ignition is switched off. Headlamp cleanin
gsystem
Th eh eadlamps are cleane dautomaticall yif
the "Wip ewithw ashe rfluid" function is oper-
ated fiv etimes (Y page 131 )while the lights
ar eona nd the engine is running. Whe nyou
switc hoff th eignition, the automatic head-
lam pcleaning system is reset and countin gis
resumed from 0. Intelligent Light Sys
tem
General notes Th
eI ntelligent Light System is asystem that
adjusts the headlamps automatically to suit
the prevailing drivin gand weather conditions.
It offers advanced functions for improved illu-
mination of the road surface, e.g. depending
on the vehicle speed or weather conditions.
The system includes the active light function,
cornering light function, motorway mode and
extended range foglamps. The system is only
active when it is dark.
You can activate or deactivate the "Intelligent
Light System" using the on-board computer
(Y page 281). Active light function
The active light function is
asystem that
moves the headlamps according to the steer-
ing movements of the front wheels. In this
way, relevant areas remain illuminated while
driving. This allows you to recognise pedes-
trians, cyclists and animals.
Active: when the lights are switched on.
Cornering light function The cornering ligh
tfunction improves the illu-
mination of the road over awide angle in the
direction you are turning, enabling better vis-
ibility in tight bends, for example. It can only
be activated when the dipped-beam head-
lamps are switched on.
Active:
R if you are drivin gatspeeds below
40 km/ hand the turn si gnal is activatedor
the steerin gwheel is turned.
R if you ar edriving at speeds between
40 km/h and 70 km/h and tur nthe steer-
ing wheel. Exterior lighting
123Lightsand windscreen wipers Z

Rear overhead control panel (thir
drow of seats)
: Readin glamp Interior lightin
gcontrol
General notes In order to preven
tthe vehicle' sbattery from
discharging, the interior lighting functions are
automatically deactivated after some time
except for when the key is in position 2in the
ignition lock.
The colour and brightness of the ambient
lighting may be set using the on-board com-
puter (Y page 281).
Automatic interior lighting control Overhead control panel
:
p To switch the left-hand front reading
lamp on/off
; c To switch the front interior lighting
on
= v To switch the rear interior lighting
on/off ?
| To switch the front interior lighting/
automatic interior lighting control off
A p To switch the right-hand front read-
ing lamp on/off
B To switch the automatic interior lighting
control on
X To switch on: set the switch to centre
position B.
X To switch off: set the switch to the |
position.
The interior lighting automatically switches
on if you:
R unlock the vehicle
R open adoor
R remove the key from the ignition lock
The interior lightin gisactivate dfor as hort
tim ew hen the key is removed from the igni-
tion lock .You can activate this delayed
switch-of fusing the on-boar dcomputer
(Y page 282).
Manua linterior lighting control Overhead con
trolpanel
: p To switch the left-hand front reading
lamp on/off
; c To switch the front interior lighting
on
= v To switch the rear interior lighting
on/off
? | To switch the front interior lighting/
automatic interior lighting control off Interior lighting
127Lights and windscreen wipers Z

5
¯ Continuous wipe, fast
B í Single wipe
C î To wipe with washer fluid
X Turn the key to position 1or 2in the ignition
lock (Y page 159).
X Turn the combination switc htothe corre-
sponding position.
In the ÄorÅ position, the appropriate
wipin gfrequency is se tautomatically accord-
ing to the intensity of the rain. In the Å
posi tion, the rain sensor is mor esensitive
than in the Äposition, causin gthe wind-
screen wiper stowipe mor efrequently. Switc
hing th erearw indow wiper on/
off Combi
nation switch
: è Rear windo wwiper switch
2 b To wipe with washer fluid
3 ITo switc honintermitten twiping
4 0To switc hoff intermittent wiping
5 ô To wip ewith washer fluid
X Turn the key to position 1or 2in the ignition
lock (Y page 159).
X Turn switch :on the combination switch
to the correspondin gposition.
When the rea rwindow wiper is switched on,
the icon appears in the instrumen tcluster. Replacing th
ewiper blades
Important safety notes G
WAR
NING
The wipe rarms could start moving and cause
an injury if you leave the windscreen wipers
switche don.
Remove the key from the ignition lock before
replacing the wipe rblades.
! Never open the bonnet if awindscreen
wiper arm has been folded away from the
windscreen.
Never fold awindscreen wiper arm without
aw iper blade back ont othe windscreen/
rea rwindow.
Hold the windscreen wiper arm firmly when
you change the wiper blade. If you release
the windscreen wiper arm without awiper
blade and it falls ont othe windscreen, the
windscreen ma ybedamaged by the force
of the impact.
Mercedes-Benz recommends that you have
the wiper blades changed at aqualified
specialist workshop.
! To avoid damaging the windscreen wiper
blades, mak esure that you touc honly the
wipe rarm of th ewindsc reen wiper.
Replacing th ewindscreen wiper blades Removing th
ewiper blades
X Remov ethe key fr om theignition lock.
X Fold the wiper ar maway fro mthe wind-
screen. 132
Windscreen wipersLights and windscreen wipers

X
Firml ypress release knob :and pull the
wipe rblade upwards from the wiper arm in
the directio nofthe arrow.
Fitting th ewiper blades X
Position the new wiper blade in the retainer
on the wiper arm and slide it into place in
the opposite direction to the arrow.
The wiper blade audibly engages.
X Make sure that wiper blade is seated cor-
rectly.
X Fold the wiper arm back onto the wind-
screen.
Replacing the rear window wiper blade Removing the wiper blades
G
WARNING
The wiper arm could be set in motion and
injur eyou if the windscreen wiper sare
switched on.
Remove th ekey from the ignition lock before
replacing the wiper blade. X
Remov ethe key from the ignition lock.
X Fold wiper arm :away from the rea rwin-
dow until it engages.
X Position wiper blade ;atar ight 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 ;.
Fitting 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 win-
dow. Problems with the windscreen wipers
The windscreen wipers are obstructed X
For safety reasons, you should remov ethe
key from the ignition lock.
or
X Switc hoff th eengine using the Start/Stop
butto nand ope nthe driver's door.
X Remove the cause of the obstruction.
X Switc hthe windscreen wiper sback on.
The windscreen wipers are inoperative The windscreen wiper drive is malfunctioning.
X
Select another wiper spee donthe combi-
nation switch.
X Hav ethe windscreen wiper schecked at a
qualified specialist workshop. Windscreen wipers
133Lights and windscreen wipers Z

Usefu
linfor mati on
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variation sare pos-
sible. Note that your vehicl emay not be
equippe dwith all of the function sdescri-
bed. This is also the case for system sand
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page25). Overvie
wofclimatecontrol systems Important safet
ynotes G
WARNING
Observ ethe settings recommende donthe
followin gpages. The windows could other-
wise mist up. This may preven tyou from
observing the traffic conditions, thereby caus-
ing an accident.
Climate control regulates the temperature
and the humidity in the vehicle interior and
filters undesirable substances out of the air.
Climate control is only operational when the
engine is running. The system only works
optimally if the side windows and the roof are
closed.
The residual heat function can only be acti-
vated or deactivated with the ignition
switched off (Y page 147).
i Ven tilate the vehicle for abriefp eriod
during war mweather ,e.g. using the con-
venienc eopening feature (Y page 90).
This will speed up the cooling process and
the desired vehicle interior temperature
will be reached mor equickly.
i The integrated filter can filter out most
particles of dust and completely filters out
pollen. Aclogged filter reduces the amount
of air supplied to the vehicle interior .For
this reason, you should always observ ethe interval for replacing the filter
,which is
specifie dinthe Servic eBooklet .Asit
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Servic eBooklet. 136
Overview of climat
econtrol systemsClimat econtrol

Q
Switche srear-com partment climate contro lon/of f(Y page 141)
R Reduces the airflow (Y page 144)Informat
iona bout using
THERMOTRONIC automatic climate
control
The following contains instructions and rec-
omm endations to enabl eyou to get the most
ou tofy our THERMOTRONIC automatic cli-
mate con trol.
R Activate climate con trol using the Ãand
¿ buttons. The indicator lamps above
the à and¿ button slight up.
R In automatic mode, you can also use the
ñ button to set aclimate mode
(FOCUS/MEDIUM/DIFFUSE). The
MEDIU Mlevel is recommended.
R Set the temperature to 22 †.
R Only use the demisting function briefly until
the windscreen is clear again.
R Only use the air-recir culation mode briefly,
e.g. if there are unpleasant outside odours
or when in atunnel. The windows could
otherwis emist up as no fresh air is drawn
into the vehicle in air-recirculation mode.
R Use the ZONE func tion to adopt the tem-
peratur esettings on the driver' sside for
the front-passenger side and the rear com-
partmen taswell. The indicator lamp above
the á button goes out.
R Use the residual heat function if you want
to heat or ventilate the vehicl einterior
whe nthe ignition is switched off .The resid-
ual heat func tion can only be activated or
deactivated with the ignition switched off. Operating th
eclimat econtrol system Switching climate control on/off
Points to observe before use i
If climat econtrol is switched off ,the air
supply and air circulation ar ealso switched off. Only select this settin
gbriefly. Other-
wise ,the windows ma ymist up.
i Switch on climate control primarily using
the à button (Y page 142).
In the rear compartment, you can also switch
climate control on and off using the Ãand
^ buttons.
Switching on/off X
Turn the key to position 2in the ignition
lock.
X To switch on: press buttonÃ.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to
automatic mode.
or
X Press the ^button.
The indicator lamp in the ^button goes
out. The previous settings are reactivated.
X To switch off: press the^button.
The indicator lamp in the ^button lights
up. Activating/deactivating the cooling
with air dehu
midification function
Points to observe before use G
WARNING
If the "cooling with air dehumidification" func-
tion is deactivated, the air inside the vehicle
will not be cooled (during warm weather) or
dehumidified. The windows could mist up
more quickly. This may prevent you from
observing the traffic conditions, thereby caus-
ing an accident.
The cooling with air dehumidification function
is only available when the engine is running.
The air inside the vehicle is cooled and dehu- Operating the climate control system
141Climatecontrol Z

mid
ified according to the temperature selec-
ted.
Condensation may drip from the undersid eof
the vehicl ewhen cooling mode is active .This
is norma land not asign that there is amal-
function.
i The cooling with air dehumidification
function uses refrigerant R134a. This
refrigerant does not contain chlorofluoro-
carbons, and therefore does not damage
the ozone layer.
Switching on/off ¿
button (example)
X To activate: press the¿/Á button.
The indicator lamp in the ¿/Ábut-
ton lights up.
X To deactivate: press the¿/Á but-
ton.
The indicator lamp in the ¿/Ábut-
ton goes out. The cooling with air dehumid-
ificatio nfunction has adelayed switch-off
feature.
Problems with the cooling with air
dehumidification function When you press the
¿button ,the indica-
tor lam pint he button fla shes three times or
remains off .You can no longer switch on the
cooling with air dehumidification function.
X Visit aquali fieds pecialist workshop. Setting clima
tecontrol to automatic
mode
Points to observe before use In automatic mode, the set temperature is
maintained automatically at
aconstan tlevel.
The system automatically regulates the tem-
perature of the dispensed air ,the airflo wand
the air distribution.
Automatic mode will achieve optimal opera-
tion if cooling with air dehumidification is also
activated. If desired, cooling with air dehu-
midification can be deactivated.
In the rear compartment ,you can also switch
climate control for the rea rseats to automatic
mode using the Ãbutton.
Switching on/off X
Turn the key to position 2in the ignition
lock.
X Set the desired temperature.
X To activate: press theÃbutton.
The indicator lam pintheà button lights
up. Automati cair distribution and airflow
are activated.
i THERMOTRONIC automatic climat econ-
trol: when automatic mode is activated, you
can select aclimate mode (Y page 143).
X To select manually: press the_but-
ton.
or
X Press the IorK button.
The indicator lamp in the Ãbutton goes
out. 142
Operating th
eclimat econtrol systemClimat econtrol