2012 MERCEDES-BENZ GL SUV heating

Control panel for THERMOTRONIC automatic clima
tecontrol with additional
rear-compartment clima tecontrol (3-zone) Fron
tcontrol panel
: Setsthe te mperature, left (Y page 143)
; Demist sthe windscree n(Ypage 145)
= Switche sthe ZONE function on/off (Ypage 145)
? Activates/dea ctivates cooling with air dehumidificatio n(Ypage 14 1)or activates/deac-
tivates the residual heatin gfunction (Y page 147)
A Switches the rear window heating on/off (Y page 146)
B Setsthe temperature, right (Y page 143)
C Switches rear-compartment climate contro lon/off
D Switches the climate contro lon/off (Y page141)
E Sets the air dist ribution (Y page 144)
F Increases th eairflow (Y page 144)
G Reduces the airflow ( Ypage 144)
H Display
I Setsthe clima te mode (Y page 14 3)
J Activates/deactivates air-recirculatio nmode (Y page 14 6)
K Climate control, automatic mode (Y page 142)
Rear control panel
L Increases the airflow (Y page 144)
M Setsthe temperature (Y page 143)
N Controls the rear-compartment climat econtr ol automaticall y(Ypage 14 2)
O Directs the airflow through the rear air vent s(Ypage 14 4)
P Directs the airflow through the footwell vent s(Ypage 14 4) 140
Overview of climat
econtrol systemsClimat econtrol

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

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

?
u To switc honthe auxiliary heating/
ven tilation
A , To check the status/set the depar-
ture time
X To switch on: press theubutton.
ON is shown in the remote control display.
X To deactivate: press the^button.
OFF is shown in the remot
econtrol display.
Checking th estatus of the auxiliary heat-
ing/ventilation Auxiliary heating remote control
:
Display
; . To check the status /set the depar-
tur etime
= ^ To switch off the auxiliar yheating/
ven tilation
? u To switch on the auxiliar yheating/
ven tilation
A , To check the status/set the depar-
ture time
X Press the ,or. button.
The following messages may appear in the
display: Display Meaning
The auxiliar
yheating/
ven tilation is switched
off. The auxiliar
yventilation
is switched on. The num-
ber in the display shows
the remainin gtime (in
minutes) for the auxiliary
ventilation. The auxiliar
yheatin gis
switched on. The number
in the displa yshows the
remaining tim e(in
minutes) for the auxiliary
heating. Ad
eparture tim ehas
been activated. The
departure time appears
in the display. Ad
eparture tim ehas
been activated. The aux-
iliary ventilation is cur-
rently selected. The
departure time appears
in the display. Ad
eparture tim ehas
been activated. The aux-
iliary heating is currently
selected. The departure
time appears in the dis-
play. Setting the departure time
Auxiliary heating remot
econtrol
: Display
; . To chec kthe status/se tthe depar-
tur etime 150
Operating the climate control systemClimat
econtrol

=
^ To switc hoff th eauxiliary heating/
ventilation
? u To switch on the auxiliary heating/
ventilation
A , To check the status/set the depar-
ture time
X Press the ,or. button repeatedly
until the time to be changed appears in the
display.
X Press the uand^ buttons simulta-
neously.
The Îsymbol in the remote control dis-
play flashes.
X Press the ,or. button to set the
desired departure time.
i The longer you press the ,or.
button, the faster the time changes.
X Press the uand^ buttons simulta-
neously.
The new departure time is stored.
Activating the set departur etime Auxiliary heating remote control
:
Display
; . To check the status/set the depar-
ture time
= ^ To switch off the auxiliar yheating/
ven tilation
? u To switch on the auxiliar yheating/
ven tilation
A , To check the status/set the depar-
ture time X
Press the ,or. button repeatedly
until the desired departur etime appears in
the display.
X Press the ubutton.
The Ísymbol and the departur etime
appear in the display.
Deactivating aset depa rtur et ime Auxiliary heating remote control
:
Display
; . To check the status/set the depar-
ture time
= ^ To switch off the auxiliar yheating/
ven tilation
? u To switch on the auxiliar yheating/
ven tilation
A , To check the status/set the depar-
ture time
X Press the ,or. button.
The status of the auxiliar yheatin gisshown
in the display.
X Press the .button.
The first departur etime stored appears in
the display.
X Press the ^button.
The display message OFF appears in the
display.
Replacing the remot econtrol battery G
WARNING
Batteries contain poisonous substances.
Swallowing/ingestin gbatteries can result in
serious personal injury or death. Operating the climate contro
lsystem
151Climate co ntrol
Z

Alway
skeepb atteries away from children. If
ab attery is swallowed, see kimmediate med-
ica lattention. H
Environmental note Batteries contain pollutants.
It is illegal to dispose of them
with the househo
ldrubbish.
They mus tbecollected sep-
arately and disposed of in an
environmentally responsible
recycl ings ystem. Dispose of batterie
sinan
environmental lyresponsible
manner. Take disch arged
batteries to aqualified spe-
cialist workshop or to acol-
lection point for used batter-
ies. One
6Vp in battery, type 2CR11108 is
required.
X Prise apart the side arm sofbattery
cover ;and pul loff battery cover ;.
X Remove ol dbattery :.
X Insert the new battery. Observe the polarity
signs on the back of the remote control
when doing so.
X Slid ebattery cover ;back ont othe
remot econtr ol.
X Us ethe remot econtr ol to chec kthe vehi-
cle' sauxiliary heating functions. 152
Operating the climate contro
lsystemClimate co ntrol

Problems wit
hthe auxiliary heating/ventilation Display messages Possible causes/consequences and
M Solutions
$
FAIL Th
es ignal transmission between the transmitter and the vehicle
is faulty.
X Change your position in relation to the vehicle, movin gcloser if
necessary.
X Make another attempt to switch the auxiliary heating on or off
using the remote control. ©
FAIL there is not enough fuel in the fuel tank
,orthe auxiliary heating is
faulty.
X Refuel at the nearest filling station.
X Make another attemp ttos witch on the auxiliary heating using
the remote control.
X Have the auxiliary heating checked at aqualified specialist
workshop. FAIL This display messag
emay appear if you attempt to activate the
auxiliary heating or during astatus query.
If the auxiliary heating doe snot switc honorh as switched off while
running, this has occurred due to one of the following reasons:
R the auxiliary heating was started more than twice when the
engine was switched off.
R the starter battery is not sufficiently charged.
R There is too little fuel in the fuel tank.
R the auxiliary heating is faulty.
If the auxiliary heating was switched on more than twice:
X Switch on the engine and let it run for more than 10 seconds.
X Make another attempt to switch on the auxiliary heating using
the remote control.
If the starter battery is not sufficiently charged:
X Charge the starter battery.
X Make another attempt to switch on the auxiliary heating using
the remote control.
If there is not enough fuel:
X Refuel at the nearest filling station.
X Make another attempt to switch on the auxiliary heating using
the remote control. Operating the climate control system
153Climate control Z