heating MERCEDES-BENZ GL SUV 2012 User Guide

i
Further related subjects:
R Luggage compartment enlargement
(folding the 2nd row of se atsf orwards)
(Y page 341)
R Folding the seats in the 3r drow for-
wards/back (Y page 105)
Folding down th eseats
The seats can be folded dow nelectrically if
the vehicle is stationary and the respec tive
rea rdoor is open. X
Press button :.
The head restraint retracts, the backrest
folds forwards and the seat folds forwards.
The seat can be manually returne dtoits
initial position (Y page 106). Adjusting th
emulticon tour seat
Yo uc an set the multicontour seat using
COMAND Online. See the separat eCOMAND
Onli neOperating Instructions. Adjusting th
e4-way lumbar support :
To rais ethe bac krest contour
; To soften the backrest contour
= To lower the backrest contour
? To harden the backrest contour
You can adjust the contour of the fr ontseat
bac krest sindividually to provide optimum
support for your back. Switching th
eseat heating on/off
Switching on/off G
WARNING
Repeatedly settin gthe seat heating to level
3 ma yresult in excessiv eseat temperatures.
The health of passengers that have limited
temperatur esensitivit yoralimited ability to
react to excessively high temperatures may
be affected or they may even suffer burn-like
injuries. Therefore, do not use seat heating
level 3repeatedly. 108
SeatsSeats, steering wheel and mirrors

Driver's and front-p
assenger seat Rear seats
Th
et hree red indicat or lampsinthebutton
indicat ethe heating lev el youhave selected.
The system automatically switches down
from level 3to level 2after approximately
eight minutes.
The system automatically switches down
from level 2to level 1after approxima tely ten
minutes.
The system automatically switches off
approximately 35 minutes after it is set to
level 1.
You can set the distribution of the heated
sections of the seat cushion and backrest.
You can find information about this in the
separate operatin ginstructions.
X Make sure that the key is in position 1or
2 in the ignition lock.
X To switch on: pressbutton :repeatedly
until the desired heating level is set.
X To switch off: press button:repeatedly
until all the indicator lamps go out. i
If the batter yvoltage is too low, the seat
heatin gmay switch off.
Problems with the seat heating The seat heating has switched off prema-
turely or cannot be switched on. The vehicle's
electrical system voltage is too low because
too many electrical consumers are switched
on.
X
Switc hoff elect rical consumers that you do
not need, such as the rear window heating
or interior lighting. Switchin
gthe seat ventilation on/off
Switchin gon/off The three blue indicator lamps in the buttons
indicat
ethe ven tilation level you have selec-
ted.
X Make sure that the key is in position 1or
2 in the ignition lock.
X To switch on: press button:repeatedly
until the desired ventilation level is set.
X To switch off: press button:repeatedly
until all the indicator lamps go out.
i If the batter yvoltage is too low, the seat
ven tilation may switch off.
i You can open the side windows and the
sliding sunroof using the "Convenience
opening" featur e(Ypage 90). The seat ven-
tilation of the driver' sseat automatically
switches to the highest level. Seats
109Seats, steering wheel and mirrors Z

Problems wit
hthe seat ventilation Th
es eat ven tilation has switched off prema-
turely or cannot be switched on. The vehicle's
electrical system voltage is too low because
too many electrical consumer sare switched
on.
X Switch off electrica lconsumers that you do
not need, such as the rea rwindow heating
or interior lighting. Steering wheel
Important safet
ynotes G
WARNING
Do not adjust the steering wheel while driving.
Adjusting the steering wheel while driving, or
drivin gwithout the steering wheel adjustment
featur elocked coul dcause the driver to lose
control of the vehicle.
The electrical steering wheel adjustment fea-
ture can be operated at any time. Therefore,
do not leave children unattended in the vehi-
cle, or with access to an unlocked vehicle. A
child's unsupervised access to avehicle could
result in an accident and/or serious personal
injury. Adjusting the steering whee
lman-
ually :
Release lever
; To adjus tthe steering wheel height
= To adjust the steering wheel position
(fore-and-af tadjustment)
X Push release lever :down completely.
The steerin gcolum nisu nlocked.
X Adjus tthe steering wheel to the desired
position.
X Push release lever :up completely.
The steering column is locked.
X Chec kifthe steering column is locked.
When doing so, tr ytopush the steering
wheel up or down or try to move it in the
fore-and-aft direction. Adjusting the steering wheel electri-
cally :
To adjust the steering wheel height
; To adjust the steering wheel position
(fore-and-aft adjustment) 110
Steering wheelSeats, steerin
gwhee land mirrors

i
Further related subjects:
R EASY-ENT RY/EXIT feature
(Y page 111)
R storing setting s(Ypag e115) Ste
ering wheel heating
Switchin gon/off X
Make sure that the key is in position 2in
the ignition lock.
X To switch on/off: turn the lever in the
direction of arrow :or;.
Indicator lamp =lights up or goe sout.
Vehicles without KEYLESS-GO: when you
remove the key from the ignition lock, the
steering wheel heating is switched off.
Vehicles with KEYLESS-GO: when you switch
off the ignition and open the driver' sdoor, the
steerin gwheel heating is switched off.
Problems wit hthe steering whee lheat-
ing The steerin
gwheel heating has switched
itsel foff prematurely or cannot be switched
on. Th evehicle' selectrical system voltage is
too low because too many electrical consum-
ers are switched on.
X Switc hoff elect rical consumers that you do
not need, such as the rear window heating
or inte rior lighting. EASY-ENTRY/EXIT feature
Important safety notes G
WARNING
Make sur ethat nobody can becom etrapped
when you activate th eEASY-ENTRY/EXI Tfea-
ture.
If there is arisk of someon ebecomin gtrap-
ped, stop th eadjustment procedure. To halt
the procedure:
R press the steerin gcolum nadjustment but-
ton.
R briefly press one of the memory fun ction
position buttons.
The steerin gcolum nstops moving immedi-
ately.
Do not keep the memory function position
button pressed down, otherwise the memory
function will start and the steerin gwheel and
seat will begin to move.
Never leav echildren unsupervised in the vehi-
cle. They coul dopen the driver' sdoor and
thereby unin tentionally activate the EASY-
ENTRY feature and become trapped.
The EASY-ENTRY/EX ITfeature make sgetting
in and out of your vehicle easier.
You can activa teand deactivat ethe EASY-
ENTRY/ EXIT feature in th eon-board com-
puter (Y page285).
Positio nofthe steering whee lwhen the
EASY-ENTRY/EXIT feature is active Th
es teering whee ltilts upwards if you:
R remov ethe key from the ignition lock
R open the driver's door and KEYL ESS-GO is
in position 1
R ope nthe driver's door and the key is in
position 0or 1in the ignition lock
i The steerin gwheel only moves upwards if
it has not already reached the upper end
stop. Steering wheel
111Seats, steering whee land mirrors Z

X
Make sur ethat the key is in position 1or
2 in the ignition lock.
X Press button :for the left-hand exterior
mirror or button ;for the right-hand exte-
rior mirror.
The indicator lam pint he corresponding
button lights up in red.
The indicator lam pgoes out again after
some time. You can adjust the selected
mirror using adjustment button =as long
as the indicator lam pislit.
X Press adjustment button =up, down, or
to the left or right until you have adjusted
the exterior mirror to the correct position.
You should have agood overview of traffic
conditions.
The convex exterior mirror sprovide alarger
field of vision.
The exterior mirrors are automatically heated
if the rear window heating is switched on and
the outside temperature is low.
Folding the exterior mirrors in or out
electrically X
Make sure that the key is in position 1or
2 in the ignition lock.
X Briefly press button :.
Both exterior mirrors fold in or out.
i Make sure that the exterior mirrors are
always folded out fully while driving. They
could otherwise vibrate. Setting the exterior mirrors If the battery has been disconnected or com-
pletely discharged
,the exterior mirrors must
be reset .The exterior mirrors will otherwise
not fol dinwhen you selec tthe "Fold in mir-
ror sw hen locking" func tion in the on-board
computer (Y page 285).
X Make sure that the key is in position 1in
the ignition lock.
X Briefl ypres sbutton :.
Folding the exterior mirrors in/out
automatically If the "Fold in mirrors when locking" function
is activated in the on-board computer:
(Y
page 285)
R the exterior mirrors fold in automatically as
soo nasyou lock the vehicle from the out-
side.
R the exterior mirror sfold out again automat-
ically as soon as you unloc kthe vehicle and
then open the driver's or front-passenger
door.
Exterior mir rorp ushe dout of position If an exterior mirro
rhas been pushe dout of
position, proceed as follows:
X Vehicles without electrically folding
exterior mirrors: move the exterior mirror
into the correct position manually.
X Vehicles with electrically folding exte-
rior mirrors: press and hold button for
folding the mirrors :(Ypage 113 )until you
hea rac lick and then the mirror engage in
position.
The mirror housing is engaged again and
you can adjust the exterior mirrors as usual
(Y page 112). Mirrors
113Seats, steerin gwhee land mirrors Z

Control panel for THERMATIC automatic clima
tecontrol (2-zone) :
Setsthe tem perature, left (Y page 143)
; Demists th ewindscree n(Ypage 145)
= Switches th eZONE fu nction on/of f(Y page 145)
? Activates/deactivate scooling with ai rdehumidi fication (Y page141)ora ctivates/deac-
tivates the residual heating functio n(Ypage 14 7)
A Switches the rear window heating on/off (Y page146)
B Sets the tempera ture,right (Y page 143)
C Activates/deactivates air-recirculation mode (Y page 146)
D Setsthe air distribution (Y page 144)
E Increase sthe airflo w(Ypage 14 4)
F Reduces the airflow (Y page 144)
G Switches climate control on/off (Y page 141)
H Setsclimate control to automatic mode (Y page 142)Rear-
compartment control panel onl yincombination with special equipmen tseat heating
: Controls the rear-compartment climate control automatically
; Switches rear-compartment climate control on/off Overview of climat
econtrol systems
137Climatecontrol Z

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