2012 MERCEDES-BENZ GL SUV Owners Manual

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

Setting th
eclimat emode
In automatic mode you can select the follow-
ing climat emodes:
FOCU Shigh airflow that is set slightly
cooler
MEDIU Mmedium airflow, standard setting
DIFFUS Elow airflow that is set slightly
warmer and with less of adraught ñ
button (example)
X Turn th ekey to position 2in the igniti on
lock.
X Press the Ãbutton.
X Press the ñbutton repeatedly until the
desired climate mode appears in the dis-
play. Setting the temperature
THERMATIC automatic climate control Different temperatures can be set for the
driver's and front-passenge rsides.
X Turn the key to position 2in the ignition
lock.
X To increase/reduce: turnc ontrol :or
B clockwise or anti-clockwise
(Y page 13 7).
Only cha nget he temperatur esettin gin
small increm ents.Start at 22 †. THERMOTRONIC automatic climate
control
THERMOTRO
NICa utomatic climate control zones
You can sele ctdifferen ttemperatur esettings
for the driver' sand front-passenger sides as
well as for the rear compartment.
X Turn the key to position 2in the ignition
lock.
X To increase/reduce the temperature in
the front: turn controls :and Bclock-
wis eoranti-clockwise (Y page139).
Onl ychange the temperature setting in
small inc rements. Start at 22 †.
X To increase/reduce the tem perature in
the rear compartment using the front
control panel: press theábutton.
The indicator lamp in the ábutton goes
out.
X Turn control :clockwise or anti-clockwise
(Y page 139).
Only change the temperature setting in
small increments. Start at 22 †.
The temperature setting for the driver's
sid eisa dopted for the rear compartment
and the front-passenger side.
X To increase/decrease the rea rcompart-
ment temperature using the rear con-
trol panel: turn control Mclockwise or
anti-clockwise on the rear control panel
(Y page 139).
Only change the temperature setting in
small increments. Start at 22 †. Operating th
eclimat econtrol system
143Climatecontrol Z

Setting th
eair distribution
Air distribution settings Front contro
lpanel
P Directs the airflow throug hthe cen tre
ve nts
O Directs the airflow throug hthe foot-
well air ven ts
S Directsthe airflo wthrough the cen tre
and footwell vents
¯ Directsthe airflo wthrough the demis-
ter ven ts
b Directsthe airflo wthrough the demis-
ter and cen tre vents.
a Directs the airflow throug hthe foot-
well and demister ven ts
_ Directsthe airflo wthrough the demis-
ter ,centre and footwell air ven ts.
Rear control panel
M Directsthe airflo wthrough the cen tre
and side air vent sinthe rear
O Directsthe airflo wthrough the foot-
well air ven ts
i Using the rear control panel, you can also
activate both air distribution positions
simultaneously .Inordertodot his, press
both air distribution buttons. Th eair is then
routed throug hall rear air vents.
i Regardless of th eair distribution setting,
airflow is always directed throug hthe side
air vents .The side air ven ts canonly be
closed whe nthe con trols on the side air
vent sare turne ddownwards. Adjusting X
Tur nthe key to position 2in the ignition
lock.
X Press the _button repeatedly until the
desired symbol appears in the display. Setting th
eairflow X
Turn the key to position 2in the ignition
lock.
X To increase: press theKbutton.
X To reduce: press theIbutton.
i You can use THERMOTRONIC automatic
climate control to set the airflow in the rear
compartmen tseparately. 144
Operating th
eclimat econtrol systemClimat econtrol

Switching th
eZONE functio non/off X
To switc hon:press the ábutton.
The indicator lam pabove the ábutton
lights up.
THERMATIC automatic climate control: the
temperatur esettin gfor the driver's side is
not adopted for the front-passenger side.
THERMOTRONIC automatic climate con-
trol: the temperatur esettin gfor the driver's
side is not adopted for the front-passenger
side and the rea rcompartment.
X To switch off: press theábutton.
The indicator lam pabove the ábutton
goes out.
THERMATIC automatic climate control: the
temperatur esettin gfor the driver's side is
adopted for the front-passenger side.
THERMOTRONIC automatic climate con-
trol: the temperatur esettin gfor the driver's
side is adopted for the front-passenger side
and the rea rcompartment. Demisting th
ewindscreen
You can use this function to demist the wind-
screen or to demist the inside of the wind-
screen and the side windows.
Switc hoff th e"demisting" function as soon
as the windscreen is clear again.
X Turn the key to position 2in the ignition
lock.
X To activate: press the¬button.
The indicator lamp in the ¬button lights
up. The climate control system switches to the
followin
gfunctions:
R high airflow
R high temperature
R air distributio ntothe windscreen and
front side windows
R air-recirculation mode off
X To deactivate: press the¬button.
The indicator lam pint he ¬ button goes
out. The previous setti ngsa re reactivated.
Air- recirculation mode remains deactiva-
ted.
or
X Pres sthe à button.
The indicator lam pint he ¬ button goes
out. Airflo wand air distributio nare se tto
automatic mode.
or
X Turn controls :orB clockwise or anti-
clockwise (Y page 137)(THERMATI Cauto-
matic climate control), (Y page 139)
(THERMOTRONIC automatic climate con-
trol ).
or
X Press the KorI button. Demisting the windows
Windows misted up on the inside X
Activate the ¿/Á cooling with air
dehumidification function.
X Activate automatic mode Ã.
X If the windows continue to mist up, activate
the demisting function (Y page 145).
i You should only select this setting until
the windscreen is clear again. Operating the climate contro
lsystem
145Clim atec ontrol Z

Windows misted up on the outside
X
Press the _button repeatedly unti lthe
P orO symbolappears in the dis-
play.
i You should only select this setting until
the windscreen is clear again. Rear window heating
Switching on/off G
WARNING
Clear all windows of ice or snow before setting
off. Otherwise ,impaire dvisibility could
endanger you and others. The rear window heating has
ahigh cur rent
draw. You should therefore switc hitoff as
soon as th ewindow is clear .Itotherwi se
switches off automaticall yafterseveral
minutes.
If the batter yvoltage is too low, the rear win-
do wh eatin gmay switc hoff.
X Turn th ekey to position 2in the ignition
lock.
X Press the ¤button.
The indicator lam pinthe¤ button lights
up or goes out.
Problems wit hthe rea rwindow hea ting The rea
rwindow heatin ghas switched off
prematurely or cannot be activated. X
Switch off any consumers that are not
required, e.g. readin glamps or interior
lighting.
When the battery is sufficiently charged,
the rear window heatin gisactivated again
automatically. Activating/deactivating air-recircula-
tion mode
G
WARNING
Only switc hover to air- recirculation mode
briefly at low outsid etemperatures. Other-
wise, the windows could mist up, thus impair-
ing visibility and endangerin gyoursel fand
others. Thi smay prevent you from observing
the traffic conditions, thereby causing an
accident. You can deactivate the flow of fresh air if
unpleasant odours are entering the vehicle
from outside. The air already inside the vehi-
cle will then be recirculated.
The operation of air-recirculation mode is the
same for all control panels.
X
Turn the key to position 2in the ignition
lock.
X To activate: press thedbutton.
The indicator lamp in the dbutton lights
up.
i In the event of high pollutio nlevels
(THERMOTRONI Cautomatic climate con-
trol only) or at high outsid etemperatures,
air-recir culation mode is automatically acti-
vated. When air-recirculation mode is acti- 146
Operating the climate control systemClimate control

vate
dautom atically ,the indicator lam pin
the d button is not lit.
Outsid eair is added after approximately
30 minutes.
X To deactivate: press thedbutton.
The indicator lamp in the dbutton goes
out.
i Air-recirculation mode deactivates auto-
matically:
R after approximatel yfive minutes at out-
side temperatures below approximately
5†
R after approximatel yfive minutes if cool-
ing with air dehumidification is deactiva-
ted
R after approximately 30 minutes at out-
side temperatures above approximately
5† with the "coolin gwith air dehumidi-
fication" function switche don. Conv
enienc eopening/closing using
the air-recirculatio nbutton G
WARNING
Make sure tha tnobody can becom etrapped
between th eside window and the door frame
as the side windows are opened and closed.
Make sure that all object sand body parts are
clear of the side windows when they are being
opene dorclosed.You or the objec tscoul dbe
drawn in or become trapped between the side
window and the door frame as the window
moves. If there is arisk of entrapment, oper-
ate the Wswitchtom ove the side window
in the opposit edirection.
Make sure that nobody can becom etrapped
as the sliding sunroof/panorama sliding sun-
roof is opened and closed. If there is arisk of
entrapment, operat ethe 3 switchtom ove
the sliding sunroof/panorama sliding sunroof
in the opposit edirection. X
Convenience closing feature: press and
hold the dbutton until the side win-
dows and the sliding sunroof/panorama
sliding sunroof are closed.
The indicator lamp in the dbutton lights
up. Air-recirculation mode is activated.
X Convenience opening feature: press and
hold the dbutton until the side win-
dows and the sliding sunroof/panorama
sliding sunroof are opened. The side win-
dows and the sliding sunroof/panorama
sliding sunroof move back to their original
position.
The indicator lamp in the dbutton goes
out. Air-recirculation mode is deactivated.
i If you open the side windows or the sliding
sunroof/panorama sliding sunroof man-
ually after closin gthemw ith the conveni-
enc eclosing feature, they will remain in this
position when opened using the conveni-
enc eopening feature. Activating/deact
ivatingthe residual
heat function Operating th
eclimate control system
147Climate control Z

It is poss
iblet om ake use of the residual heat
of the engine to continue heating the station-
ary vehicle for up to 30 minutes after the
engine has been switched off. The heating
time depends on the temperature that has
been set for the vehicle interior.
X To activate: press theÌ/Á button.
The indicator lamp in the Ì/Á but-
ton lights up.
i The blower wil lrun at alow speed regard-
less of the airflow setting.
i If you activate the residual heat function
at high temperatur es,only the ventilation
will be activated. The blower runs at
medi um speed.
X To deactivate: pressthe Ì/ Ábut-
ton.
The indicator lam pintheÌ /Á but-
ton goes out.
Residual heat is deactivated automatically:
R after approximately 30 minutes
R when the igni tion is switched on
R if the battery voltage drops
R when the auxiliar yheatin gisa ctivated Auxiliary heating
Important safety notes G
WARNING
Exhaus tfume sare produced when the auxili-
ary heating is in operation. Inhaling these
exhaust fumes can be poisonous. You should
therefo reswitch off the auxiliary heating in
con fined spaces without an extraction sys-
tem, e.g. agarage. G
WARNING
When operating the auxiliary heating parts of
the vehicle can get very hot. Make sure that
the exhaust system does not under any cir-
cumstances come into contact with easily
ignitable material such as dry grass or fuels.
The material could otherwise ignite and set the vehicle alight. Choos
eyour parkin gspot
accordingly.
Operating the auxiliary heating is thus pro-
hibited at fillin gstations or when your vehicle
is being refuelled .You must therefor eswitch
off the auxiliary heating at filling stations.
! Operating the auxiliary heating/ventila-
tion draws on the vehicle battery. After you
have heated or ventilated the vehicle a
maximum of two times, drive for alonger
distance.
i Switch the auxiliary heatin gonregularly
once amonthfor about ten minutes.
The auxiliary heatin gheats the air in the vehi-
cle interior to the set temperature without
using the heat of the runnin gengine .The aux-
iliary heating is operated directly usin gthe
vehicle' sfuel. For this reason, the tank con-
tent must be at least at reserve fuel level to
ensure that the auxiliary heating functions.
The auxiliary heating/ventilation automati-
cally adjusts to changes in temperature and
weather conditions. For this reason, the aux-
iliary heating could switch from ventilation
mode to heating mode or from heating mode
to ventilation mode.
The auxiliary heating switches off when the
engine is switched off. The auxiliary ventila-
tion switches off when you turn the key to key
position 2.
The auxiliary heating switches off automati-
cally after 30 minutes. This time limit can be
altered. To do this, visit aqualified specialist
workshop.
You cannot use the auxiliary ventilation to
cool the vehicle interior to atemperature
lower than the outside temperature.
Before switching on X
Turn the key to position 2in the ignition
lock.
X Set the temperature.
The auxiliary heating/ventilation can be acti-
vated even when climate control is set to 148
Operating the climate control systemClimate control

manu
al.O ptimum comfor tcan be attained
when the system is set to automatic mode.
Set the temperature to 22 †.
The auxiliary heating/ventilatio ncan be acti-
vated or deactivated using the remote con trol
or th ebutton on the centr econsole.
Th eo n-bo ard computer can be used to spec-
ify up to three departur etimes, one of which
may be preselec ted( Ypage 28 4).
Switching th eauxiliary heating/ven ti-
lation on/off usin gthe centr econsole
button The colours of th
eindicator lamps on the but-
ton have the following meanings:
Blue Auxiliary ventilation switched on
Red Auxiliary hea ting swi tche don
Yellow Departure tim epreselected
(Y page 284) Swi
tchint he centr econsole
X To switch auxiliary heating/ventilation
on: pres sbutton :.
The red or blue indicator lamp in but-
ton :lights up.
X To switch auxiliary heating/ventilation
off: press button :.
The red or blue indicator lamp in but-
ton :goes out. Switching th
eauxiliary heating/venti-
lation on/off using th eremote control Point
stoo bserve befo reuse
Your vehicle comes wit hone remote control.
You may use two addi tional remot econtrols
for your vehicle. For mor einformation, please
contac taqualifieds pecialist workshop.
The remot econtr olhas amaximum range of
approximately 300 metres. This range is
reduced by:
R sources of radio interference
R solid objects between the remot econtr ol
an dt he vehicle
R the remot econtr ol bein ginanu nfavoura-
ble positio ninrelation to the vehicle
R transmit ting from an enclosed space
i The optimum range can be achieved if you
hol dthe remot econtr ol vertically, pointing
upward swhen you press one of the but-
tons.
i Abattery symbol appears in the display
when the batter yinthe remote control is
low. Re placethe remote control battery
(Y page 151).
Switching th eauxiliary heating/ventila-
tion on/off Auxiliar
yheating remot econtrol
: Display
; . To check th estatus/set the depa r-
tur etime
= ^ To switch off th eauxiliar yheating/
ventilation Operatin
gthe clima tecontrol system
149Climatecontrol Z