ignition MERCEDES-BENZ G-CLASS SUV 2008 Service Manual

Air conditioning
123Function Recommendation/Notes
5
F
Switches the rear window heating on/off i
At very low temperatures, the rear window heating is
only switched on once the vehicle interior has warmed
up. (Y
page 128) 6
9
Activates/deactivates cooling with air dehumidifi-
cation i
Switch on the cooling with air dehumidification func-
tion. The indicator lamp in the 9button lights up. (Y
page 124) 9
Activates/deactivates the auxiliary heating/venti-
lation i
You can use the residual heat to heat or ventilate the
vehicle interior after you have switched off the ignition. (Y
page 129) 7
U
Controls the air conditioning automatically i
Activate automatic air conditioning. The indicator
lamp in the Ubutton comes on. (Y
page 124) 8
,
Activates/deactivates air-recirculation mode i
Only use this operating mode for a short time, e.g. in
a tunnel. Otherwise, the windows could mist up due to
a lack of fresh air. (Y
page 129) 9
P
Activates/deactivates the demisting function for
the windscreen i
Only use the "demisting" function until the wind-
screen is clear again. (Y
page 127) Cont
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Air conditioning
124 Switching the air conditioning on/off
i When the air conditioning is switched off,
the air supply and air circulation are also
switched off. Only select this setting briefly,
otherwise the windows may mist up.
Thermatic X
Make sure that the key is in position 2in
the ignition lock or that the engine is run-
ning.
X To activate: turn thumbwheel 1clock-
wise to the desired position (apart from the
0 position) (Y page 122).
X The previously selected settings come into
effect again.
X To deactivate: turn thumbwheel 1anti-
clockwise to position 0(Y page 122). Switching cooling with air dehumidi-
fication on/off
The "cooling with dehumidification" function
is only available when the engine is running.
The air inside the vehicle is cooled and dehu-
midified according to the temperature selec-
ted. This prevents the windows from misting
up. G
Risk of accident
If the "cooling with air dehumidification"
function 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 pre-
vent you from observing the traffic condi-
tions, thereby causing an accident. H
Environmental note
The cooling system uses the refrigerant
R134A. This refrigerant does not damage
the earth's ozone layer.
i Condensation may drip from the under-
side of the vehicle when Thermatic is in
cooling mode. X
To activate: press the9button.
The indicator lamp in the 9button lights
up.
X To deactivate: press the9button.
The indicator lamp in the 9button goes
out. Controlling the air conditioning auto-
matically
In automatic mode, the set temperature is
maintained automatically at a constant level.
To do so, the system automatically regulates
the temperature of the dispensed air, the air-
flow and the air distribution. The "cooling with
air dehumidification" function is on.
X Make sure that the engine is running.
X Set the desired temperature.
X To activate: press theUbutton
(Y page 122).
The indicator lamp in the Ubutton
comes on. Automatic air distribution and
airflow are activated.
X To deactivate: press theUbutton.
The indicator lamp in the Ubutton goes
out. Automatic air distribution and airflow
are deactivated. Cont
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Air conditioning
128 Switching windscreen heating* on/
off G
Risk of accident
Clear all windows of ice or snow before set-
ting off. Impaired visibility could otherwise
endanger you and others. 1
Windscreen heating switch
2 Indicator lamp
i At outside temperatures above 10 †the
windscreen heating cannot be activated.
Indicator lamp 2lights up briefly when you
attempt to activate it and then goes out
again.
i The windscreen heating has a high cur-
rent draw. You should therefore switch it off as soon as the windscreen is clear. The
windscreen heating switches off automati-
cally after ten minutes.
i If the battery voltage is too low, the wind-
screen heating may switch off. If the wind-
screen heating is automatically deactiva-
ted, indicator lamp 2flashes. The wind-
screen heating will automatically switch
back on as soon as there is sufficient volt-
age again.
X Make sure that the key is in position 1
or 2in the ignition lock.
X Press the 1button.
The indicator lamp in the 2button lights
up or goes out. Switching the rear window heating
on/off
G
Risk of accident
Clear all windows of ice or snow before set-
ting off. Impaired visibility could otherwise
endanger you and others.
i The rear window heating has a high cur-
rent draw. You should therefore switch it
off as soon as the window is clear, The rear
window heating is automatically switched
off after ten minutes.
i If the battery voltage is too low, the rear
window heating may switch off. If the rear
window heating is switched off automati-
cally the indicator lamp in switch F
flashes. The rear window heating will auto-
matically switch back on as soon as there
is sufficient voltage again.
X Make sure that the key is in position 1
or 2in the ignition lock.
X Press the Fbutton.
The indicator lamp in the Fbutton lights
up or goes out. Controls
* optional
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Air conditioning
129Activating/deactivating air-recircula-
tion mode
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. G
Risk of accident
Only switch over to air-recirculation mode
briefly at low outside temperatures. Other-
wise, the windows could mist up, thus
impairing visibility and endangering your-
self and others. This may prevent you from
observing the traffic conditions, thereby
causing an accident.
X To activate: briefly press the ,button.
The indicator lamp in the ,button
comes on.
i Air-recirculation mode is activated auto-
matically at high outside temperatures.
When air-recirculation mode is activated
automatically, the indicator lamp in
the , button is not lit.
Outside air is added after about 30
minutes. X
To deactivate: press the,button.
The indicator lamp in the ,button goes
out.
i Air-recirculation mode switches off auto-
matically:
R after approximately five minutes at out-
side temperatures below approximately
5 †
R after approximately five minutes if cool-
ing with air dehumidification is deactiva-
ted
R after approximately 30 minutes at out-
side temperatures above approximately
5 † Switching the residual heat on/off
It is possible to make 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 coolant temperature and
on the interior temperature that has been set.
i The blower will run at a low speed regard-
less of the airflow setting. i
If you activate the "residual heat" function
at high temperatures, only the ventilation
will be activated.
X Make sure that the key is in position 1or
0 in the ignition lock or that it has been
removed.
X To switch on: press the9button.
The indicator lamp in the 9button lights
up.
X To deactivate: press the9button.
The indicator lamp in the 9button goes
out.
i The auxiliary heating/ventilation is auto-
matically deactivated after about 30
minutes, or when:
R the ignition is switched on
R the battery voltage drops
R when the coolant temperature is too low Cont
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Air conditioning
130 Auxiliary heating/ventilation*
G
Risk of poisoning
Exhaust fumes are produced when the aux-
iliary heating is in operation. Inhaling these
exhaust fumes can be poisonous. You
should therefore switch off the auxiliary
heating in confined spaces without an
extraction system, e.g. a garage. G
Risk of fire
When operating the auxiliary heating, parts
of the vehicle may become very hot, and
highly inflammable material such as fuels
could be ignited. Operating the auxiliary
heating is thus prohibited at filling stations
or when your vehicle is being refuelled. You
must therefore switch off the auxiliary heat-
ing at filling stations.
The auxiliary heating heats the air in the vehi-
cle interior to the set temperature without
using the heat of the running engine. The aux-
iliary heating is operated using fuel directly
from the vehicle's fuel tank. For this reason,
the tank content 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.
You cannot use the auxiliary ventilation to
cool the vehicle interior to a temperature
lower than the outside temperature.
Before activating
X
It is preferable to set the air conditioning to
U.
X Set the temperature.
The auxiliary heating/ventilation can be acti-
vated even when the air conditioning is being
controlled manually. Optimum comfort can
be obtained by activating automatic mode
and setting the temperature to 22 †.
Activating/deactivating the auxiliary
heating/ventilation The auxiliary heating/ventilation can be acti-
vated or deactivated using the remote control
or the button on the centre console.
The on-board computer can be used to spec-
ify up to three departure times, one of which
may be preselected (Y
page 108).
For direct access to the Heatersubmenu in
the on-board computer: X
Make sure that the key is in position 1
or 2in the ignition lock.
X Press the auxiliary heating/ventilation but-
ton for about three seconds.
The auxiliary heating switches off automati-
cally after 50 minutes.
i This time limit can be altered. To do this,
visit a qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre.
Button on the centre console 1
Button for auxiliary heating/ventilation
2 Indicator lamp (red)
3 Indicator lamp (yellow) Cont
rols
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Air conditioning
131
The indicator lamps in the button may light up
in red or yellow.
R Red: auxiliary heating/ventilation is acti-
vated
R Yellow: departure time of the auxiliary
heating/ventilation is preselected
(Y page 108)
Activating the auxiliary heating/ventila-
tion
If the key is in position 1or 2in the ignition
lock:
X Press and hold button 1for more than two
seconds.
Red indicator lamp 2lights up.
If the key is removed from the ignition lock or
in position 0:
X Briefly press button 1.
Red indicator lamp 2lights up.
Deactivating the auxiliary heating/venti-
lation
X Press and hold button 1for more than two
seconds.
The red or yellow indicator lamp in the 1
button goes out. Remote control
Your vehicle comes with one remote control.
You may use one additional remote control
for your vehicle. For further information, con-
sult a qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre.
The remote control has a maximum range of
approximately 300 metres. This range may be
reduced by:
R sources of radio interference
R solid objects between the remote control
and the vehicle
R the remote control being in an unfavoura-
ble position in relation to the vehicle
R transmitting from an enclosed space
i The optimum range can be achieved if you
hold the remote control vertically, pointing
upwards when you press one of the but-
tons.
i More information about the auxiliary
heating can be found in the "Practical
advice" section (Y page 228). Auxiliary heating remote control
1
Aerial
2 OFF to deactivate auxiliary heating/ven-
tilation
3 ON to activate auxiliary heating/ventila-
tion
4 Indicator lamp (red/green)
X To activate the auxiliary heating/venti-
lation: press and hold the ONbutton until
indicator lamp 4on the remote control
lights up in green.
The red or the yellow indicator lamp in the
button on the centre console lights up.
i The indicator lamp on the remote control
informs you Controls
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Cabriolet soft top
1331
To open
2 To close
3 To raise at the rear
4 To lower at the rear (close)
X Make sure the key is in position 1or 2in
the ignition lock.
Opening X
To open manually: press the switch in the
direction of arrow 1and hold it until the
sliding/tilting sunroof is in the desired posi-
tion.
X To open fully: press the switch briefly
beyond the pressure point in the direction
of arrow 1and release it. Closing X
To close manually: press the switch in the
direction of arrow 2and hold it until the
sliding/tilting sunroof is in the desired posi-
tion.
Raising The sliding/tilting sunroof can be raised at
the rear for ventilation.
X To raise at the rear: press the switch in
the direction of arrow 3and hold it until
the sliding/tilting sunroof is in the desired
position.
Lowering and closing X
To lower at the rear (close): pull the
switch in the direction of arrow 4and hold
it until the sliding/tilting sunroof is closed. Cabriolet soft top
Opening and closing the soft top (Cab-
riolet)
The soft top can only be opened and closed if
the vehicle is stationary. G
Risk of accident and injury
Never attempt to lock/unlock the soft top
when driving. Only drive with the soft top
completely open or closed. Make sure the
soft top is fully locked while driving.
Otherwise, the unlocked soft top could
open or close during the journey and cause
you to lose control of your vehicle. You or
other persons could be injured as a result.
A fully open or closed soft top cannot be
moved by pressing or pulling.
! Never sit on the soft top or store heavy
objects on it. Otherwise, the soft top will be
damaged.
! When opening and closing the soft top,
make sure that: Cont
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Cabriolet soft top
134R
the tonneau cover* is not attached to the
opened soft top
R there is sufficient clearance above it, as
the soft top swings upwards
R the load compartment is only loaded up
to the height of the load compartment
cover
R the load compartment cover is not being
forced upwards by the load
R no objects are lying on the luggage com-
partment cover
R no roof rack is fitted
R the outside temperature is above
–15 †
R the fabric is not frozen
R the soft top is not dirty or wet
R the vehicle is not parked at a steep angle,
e.g. off-road
R zip fasteners and quick-release fasteners
are closed ( Ypage 58)
You will otherwise damage the soft top and
other parts of the vehicle. Opening i
Make sure the soft top is dry before you
open it. Otherwise, water could enter the
interior or luggage compartment.
X Move the selector lever to P.
X Apply the parking brake.
X Make sure that the key is in position 2in
the ignition lock.
X Fold raised sun visors onto the windscreen. 1
Release lever left
2 Release lever right
X Swing release lever 1to the left until a
warning tone sounds.
X Swing release lever 2to the right.
The soft top is unlocked. The soft top switch is located on the overhead
control panel.
3
To close the soft top
4 To open the soft top
X Press the soft top switch in the direction of
arrow 4until the soft top is fully open and
the warning tone stops.
X Swing release lever 1and 2back to their
original positions.
Closing X
Move the selector lever to P.
X Apply the parking brake.
X Make sure that the key is in position 2in
the ignition lock.
X Fold raised sun visors onto the windscreen. Cont
rols
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Loading and stowing
147
Glove compartment
1
To unlock
2 To lock
3 Handle
X To open: pull handle 3and open the glove
compartment lid.
X To close: fold glove compartment cover up
until it engages.
X To lock: insert the emergency key element
(Y page 229) into the lock and turn it 90°
clockwise to position 2.
X To unlock: insert the emergency key ele-
ment (Y page 229) into the lock and turn
it 90° anti-clockwise to position 1.i
The glove compartment is illuminated
when open, provided that the key is in posi-
tion 1or 2in the ignition lock.
Stowage compartment/telephone
compartment*under the armrest / in
the centre console. Under the armrest is a shallow stowage tray
(telephone compartment), under which is a
deeper stowage compartment. 1
Right-hand button
2 Left-hand button
3 Stowage compartment cover in the centre
console
X To open the stowage tray (telephone
compartment): pull button2on the left
and lift the armrest. X
To open the stowage compartment: pull
button 2on the left and raise armrest.
The stowage tray is raised together with the
armrest.
X To open the stowage compartment in
the centre console: slide cover3back
using the handle.
Map pockets 1
Map pockets Controls
* optional
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Features
150 12 V sockets
The sockets can be used for accessories with
a maximum power consumption of 180 W.
! If the engine is switched off and consum-
ers are used for long periods, the battery
may become discharged.
Dashboard socket X
Lift up the cover of the socket.
The cigarette lighter socket can be also used
(Y page 149). It can also be used if the key
has been removed from the ignition lock. Socket in the rear passenger compart-
ment The socket is located at the rear of the centre
console.
X
Lift up the cover of the socket.
Load compartment power socket (long-
wheelbase station wagon) The socket is located in the luggage compart-
ment on the left-hand-side when viewed in the
direction of travel, next to the rear door. X
Lift up the cover of the socket. Mobile phone*
G
Risk of accident
Observe the legal requirements of the
country in which you are currently driving
regarding operating mobile communica-
tions equipment in a vehicle.
If it is permitted by law to operate commu-
nications equipment while the vehicle is in
motion, you may only do so when the traffic
situation allows. Otherwise, you could be
distracted from the traffic conditions,
cause an accident and injure yourself and
others. Cont
rols
* optional
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