2008 MERCEDES-BENZ G-CLASS SUV Owners Manual

Air conditioning
126
Adjusting the side air vents
Side air vents
1
Side air vent
2 Swivelling side air vent
3 Side air vent thumbwheel
X To open/close: turn thumbwheel 3to the
left or right. Adjusting the rear-compartment air
vents Rear-compartment air vents
1
Thumbwheel for rear-compartment air
vents
2 Rear air vent sliders
X To open/close: turn thumbwheel 1up or
down.
X To set the air direction: move slider2
for the left or right rear-compartment air
vent to the left, right, up or down. Setting the air distribution
You can set the air distribution for the entire
vehicle.
The symbols for the air distribution have the
following meanings: Symbol Meaning
Z
Directs air to the windscreen
and side windows through the
demister vents
b
Directs the airflow to the entire
vehicle interior
Y
Directs air into the front and
rear footwells
a
Directs the airflow through the
centre and side air vents
X
Press the Ubutton.
The indicator lamp in the Ubutton goes
out.
X Turn thumbwheel 4(Ypage 122) to the
corresponding symbol. The thumbwheel
can also be turned to the area between two
symbols. Cont
rols
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Air conditioning
127Setting the airflow
X Press the Ubutton.
The indicator lamp in the Ubutton goes
out.
X To increase/reduce: turn thumbwheel
1 clockwise or anti-clockwise
(Y page 122).
i The airflow from the rear-compartment
vents and the centre vents is the same. Demisting the windscreen
i You should only select the "demisting"
function until the windscreen is clear again.
i If you have switched on the demisting
function with the Pbutton, you cannot
make any other settings.
X To activate: press thePbutton.
The indicator lamp in the Pbutton
comes on.
The system automatically switches to the
following functions:
R cooling with air dehumidification off
R high airflow
R high temperature R
air distribution to the windscreen and
front side windows
R air-recirculation mode off
i If necessary, also activate the windscreen
heating* (Y page 128).
X To switch off: press thePbutton.
The indicator lamp in the Pbutton goes
out. The previously selected settings come
into effect again.
or
X Press the Ubutton.
The indicator lamp in the Ubutton
comes on. The indicator lamp in the P
button goes out. Airflow and air distribution
are set to automatic mode. Demisting the windows
Windows misted up on the inside X
Activate the "demisting" function.
X If necessary, activate the windscreen heat-
ing* (Y page 128).
Windows misted up on the outside X
Activate the windscreen wipers.
X Close the centre air vents.
When automatic air distribution is switched
off:
X Turn the air distribution thumbwheel to the
Y ora symbol.
i You should only select this setting until
the windscreen is clear again.
X If necessary, activate the windscreen heat-
ing* (Y page 128). Cont
rols
* option al
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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
rols
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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
* optional
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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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Sliding sunroof
132R
whether a signal has been transmitted to
the auxiliary heating or ventilation
R about the remote control's battery
charge status:
If the remote control indicator lamp first
lights up orange when you press one of
the buttons, the battery is almost dis-
charged.
If the remote control indicator lamp only
flashes orange when you press one of the
buttons, the battery is discharged.
Replace the battery (Y page 235).
The signal has been interrupted if the indi-
cator lamp on the remote control flashes
green when switching on or red when
switching off.
In this case, repeat the procedure. Stand
somewhere else or move closer to the vehi-
cle, if necessary.
X To deactivate the auxiliary heating/
ventilation: press and hold the OFFbutton
until indicator lamp 4on the remote con-
trol lights up in red.
The red or the yellow indicator lamp in the
button on the centre console goes out. Sliding sunroof
Sliding/tilting sunroof*
G
Risk of injury
Children could injure themselves if they
operate the sliding/tilting sunroof.
Never leave children unsupervised in the
vehicle. Always take the key with you when
leaving the vehicle, even if you are only
leaving it for a short time. G
Risk of injury
Make sure that nobody can become trap-
ped when you are opening and closing the
sliding/tilting sunroof. If there is a risk of
entrapment, release the switch and push it
briefly in any direction to stop the sliding/
tilting sunroof. G
Risk of injury
If you are not wearing a seat belt, there is
a risk that you could be thrown through the
opening in the event of the vehicle over-
turning. Therefore, always wear a seat belt
to reduce the risk of injuries.
! Only open the sliding/tilting sunroof if it
is free of snow and ice. Otherwise, mal-
functions may occur. Do not allow anything to protrude from the
sliding/tilting sunroof. The seals could oth-
erwise be damaged.
i Resonance noises can occur in addition
to the usual airflow noises when the slid-
ing/tilting sunroof is open. They are caused
by minor pressure fluctuations in the vehi-
cle interior.
Change the position of the sliding/tilting
sunroof or open a side window slightly to
reduce or eliminate these noises.
i It is also possible to open and close the
sliding/tilting sunroof from the outside
using the "Summer opening" and "Conve-
nience closing" features respectively. Controls
* optional
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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
rols
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