heating MERCEDES-BENZ ML SUV 2008 Owner's Manual
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Page 175 of 381

Air conditioning
172 Function Recommendation/Notes
5 {
Directs the airflow through the demister vents (Y
page 181) 6 9
Activates/deactivates cooling with air dehumidifi-
cation i
Switch on the air conditioning with air-dehumidifica-
tion function. The indicator lamp in the 9button
lights up. (Y
page 177) 9
Switches the residual heat function on/off i
You can use the residual heat to heat or ventilate the
vehicle interior after you have switched off the ignition. (Y
page 183) 7 Sets the temperature, right i
Set the temperature to 22 †. (Y
page 178) 8 <
Switches the rear-compartment air-conditioning
on/off (Y
page 176) 9 a
Directs the airflow through the centre and side air
vents (Y
page 181) a Y
Directs the airflow to the footwells and side air
vents (Y
page 181) b Displays the airflow level
c ·
Reduces the airflow (Y
page 181) d 1
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 182) e :
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
lack of fresh air. (Y
page 182) Cont
rols
164_AKB; 5; 5, en-GB
wobuchh
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Page 177 of 381

Air conditioning
174 Function Recommendation/Notes
3 6
Directs the airflow through the demister vents, left (Y
page 181) 4 |
Demists the windscreen i
Only use the "demisting" function until the wind-
screen is clear again. (Y
page 181) 5 Q
Increases the airflow (Y
page 181) 6 1
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 182) 7 Z
Directs the airflow through the demister vents, right (Y
page 181) 8 ™
Operates the rear-compartment air conditioning
using multi-zone Thermotronic (Y
page 176) 9 Sets the temperature, right i
Set the temperature to 22 †. (Y
page 178) a ´
Activates/deactivates multi-zone Thermotronic i
Activate multi-zone Thermotronic. The indicator lamp
in the ´button goes out. (Y
page 176) b Y
Directs the airflow to the footwells and side air
vents, right (Y
page 181) c a
Directs the airflow through the centre and side air
vents, right (Y
page 181) Cont
rols
164_AKB; 5; 5, en-GB
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Page 185 of 381

Air conditioning
182
or
X
Press the Ubutton.
or
X Turn the thumbwheels for the temperature
clockwise or anti-clockwise.
or
X Press the Qor· button. Demisting the windows
Windows misted up on the inside X
Activate the "cooling function with air-
dehumidification" function.
X Activate the automatic mode.
X If the windows continue to mist up, activate
the "demisting" function.
Windows misted up on the outside X
Activate the windscreen wipers.
X Press the a/7orY/ 8air
distribution button.
i You should only select this setting until
the windscreen is clear again. 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 At very low temperatures, the rear win-
dow heating is only switched on once the
vehicle interior has warmed up.
i The rear window heating has a high cur-
rent draw. You should therefore switch it
off as soon as the window is clear, as it only
switches off automatically after several
minutes.
i If the battery voltage is too low, the rear
window heating may switch off.
X Turn the key to position 2in the ignition
lock.
X Press the 1button.
The indicator lamp in the 1button lights
up or goes out. Activating/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 Turn the key to position 2in the ignition
lock.
X To activate: 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. Cont
rols
164_AKB; 5; 5, en-GB
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Page 186 of 381

Air conditioning
183
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 †
Air-recirculation mode with the conve-
nience opening/closing feature G
Risk of injury
Make sure that nobody can become trap-
ped between the side window and the door
frame as the side windows are opened and
closed. Do not place objects or lean against
the side window when it is being opened or
closed. You or the objects could be drawn
in or become trapped between the side
window and the door frame as the window moves. If there is a risk of entrapment,
press the :button again. Press the but-
ton for stopping, opening or closing the side
window in the opposite direction as appro-
priate.
Make sure that nobody can become trap-
ped when you are opening or closing the
sliding/tilting sunroof*. If there is a risk of
entrapment, press the :button again.
Press the button for stopping, opening or
closing the sliding/tilting sunroof* in the
opposite direction as appropriate.
X Convenience closing: press and hold
the : button until the side windows and
the sliding/tilting sunroof* have closed.
The indicator lamp in the :button
comes on. Air-recirculation mode is activa-
ted.
X Convenience opening: press and hold
the : button until the side windows and
the sliding/tilting sunroof* have reached
their original position.
The indicator lamp in the :button goes
out. Air-recirculation mode is deactivated.
i If you open the side windows or the slid-
ing/tilting sunroof* manually after closing
using the convenience closing feature, it will remain in this position when opened
using the convenience opening feature. 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 set interior temperature.
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. The blower runs at
medium speed.
X Turn the key to position 0in the ignition
lock or remove it.
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. Cont
rols
* optional
164_AKB; 5; 5, en-GB
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Page 187 of 381

Air conditioning
184
i
The residual heat automatically switches
off after around 30 minutes or if:
R the ignition is switched on
R the battery voltage drops 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
Turn the key to position 2in the ignition
lock.
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 attained when the system is set to auto-
matic mode. Set the temperature to 22 †.
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 133).
Switching the auxiliary heating/venti-
lation on/off using the centre console
button Centre console
1
X Auxiliary heating/ventilation
The colours of the indicator lights on the but-
ton have the following meanings:
Blu eA uxiliary ventilation activated
Red Auxiliary heating activated
Yello wDeparture time preselected
(Y page 132) Controls
* optional
164_AKB; 5; 5, en-GB
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Page 188 of 381

Air conditioning
185
Activating the auxiliary heating/ventila-
tion
If the key is in position 1or 2:
X Press and hold the Xbutton for at least
two seconds.
The red or blue indicator lamp in the X
button lights up.
If the key is removed or in position 0:
X Briefly press the Xbutton.
The red or blue indicator lamp in the X
button lights up.
Deactivating the auxiliary heating/venti-
lation
X Briefly press the Xbutton.
The red or blue indicator lamp in the X
button goes out.
Switching the auxiliary heating/venti-
lation on/off using the remote control Your vehicle comes with one remote control.
You may use two additional remote controls
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 A battery symbol appears in the display
when the batteries in the remote control
are low. Replace the remote control bat-
teries (Y page 312).
i More information about the auxiliary
heating can be found in the "Practical
advice" section (Y page 306). Auxiliary heating remote control
1
Display
2 To check the status
3 OFF – to deactivate auxiliary heating/
ventilation
4 ON – to activate auxiliary heating/venti-
lation
5 To check the status
Using the remote control, you can:
R activate or deactivate the auxiliary heat-
ing/ventilation
R check the status of the auxiliary heating/
ventilation
Activating the auxiliary heating/ventila-
tion
X Press the ONbutton. Cont
rols
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Page 189 of 381

Air conditioning
186
The following messages can appear in the
display: Display Meaning
The auxiliary heating/
ventilation is activated.
A malfunction has occur-
red in the auxiliary heat-
ing/ventilation. The
heating/ventilation
function selected by the
system is not available.
The vehicle battery is not
charged sufficiently or
the system is faulty. The signal transmission
between the transmitter
and the vehicle is faulty.
The heating system has a
fault or there is insuffi-
cient fuel in the fuel tank.
The auxiliary heating is
not working. The auxili-
ary ventilation is still
functioning. Deactivating the auxiliary heating/venti-
lation
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.
X Press the OFFbutton.
The following messages can appear in the
display: Display Meaning
The auxiliary heating/
ventilation is deactiva-
ted.
The signal transmission
between the transmitter
and the vehicle is faulty.
Checking the status of the auxiliary heat-
ing
X
Press the por obutton. The following messages can appear in the
display: Display Meaning
The auxiliary heating/
ventilation is deactiva-
ted.
A malfunction has occur-
red in the auxiliary heat-
ing/ventilation. The
heating or ventilation
function selected by the
system is not available.
The vehicle battery is not
charged sufficiently or
the system is faulty.
The signal transmission
between the transmitter
and the vehicle is faulty. Cont
rols
164_AKB; 5; 5, en-GB
wobuchh
,V ersion: 2.10.6
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Page 190 of 381

Sliding sunroof
187The auxiliary ventilation
is switched on. The num-
ber in the display shows
the remaining time (in
minutes) for the auxiliary
ventilation.
The auxiliary heating is
switched on. The number
in the display shows the
remaining time (in
minutes) for the auxiliary
heating. 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 KEYLESS–GO
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
The glass in the sliding/tilting sunroof
could break in an accident. 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 overturning. 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" (Y page 101)
and "Convenience closing" (Y page 102)
features respectively.
When PRE-SAFE ®
* has been activated, the
sliding/tilting sunroof closes automatically in
the event of danger, leaving a small gap open. Controls
* optional
164_AKB; 5; 5, en-GB
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Page 199 of 381

Loading and stowing
196
Removing the seat cushions* You can achieve a larger loading area by
removing the rear bench seat cushions.
X Make sure that the seat cushions are folded
forward (Y page 194). 1
Release catch
2 Connector for seat heating
! On vehicles with rear seat heating*, the
electrical contact on the bottom of the
cushion must be disconnected before
removing the seat cushion.
X Press the connection together on the upper
part of the lengthways side and pull out
seat heating connector 2from the seat
cushion. i
When refitting the seat cushion, join the
connections for the seat heating, making
sure the connector engages.
X Pull seat cushion release catch 1and
remove the seat cushion upwards.
! Leave the seat cushion hinge in this posi-
tion. If you fold it back, you could damage
the upholstery. X
Fold backrest forward (Y page 195). Luggage compartment cover and
safety net*
Luggage compartment cover* G
Risk of accident and injury
The luggage compartment cover is not a
restraint system. Secure the load under the
luggage compartment cover by suitable
means. Make sure that the luggage com-
partment cover is engaged securely. If lug-
gage is not sufficiently secured, it can be
thrown over the backrest into the
passenger compartment during, for
instance, heavy braking, sudden changes of
direction or in the event of an accident. You
could cause an accident or cause injury to
yourself and others.
The luggage compartment cover is located
behind the rear bench seat backrest.
! When loading the vehicle, make sure that
you do not stack the load in the luggage
compartment higher than the lower edge of
the side windows. Do not place heavy
objects on top of the luggage compartment
cover. Controls
* optional
164_AKB; 5; 5, en-GB
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Page 207 of 381

Features
204
X
To open: briefly press marking 3.
Ashtray 1opens.
X To remove the insert: lift insert2up and
out.
X To refit the insert: press insert2into the
holder until it engages.
Ashtray in the rear compartment 1
Insert
2 Ashtray
3 Marking
X To open: briefly press marking 3.
Ashtray 2opens.
X To remove the insert: lift insert1up and
out. X
To refit the insert: replace insert1from
above.
X Press insert 1into the holder until it
engages. Cigarette lighter*
G
Risk of injury and fire
Only hold the hot cigarette lighter by its
knob. Otherwise, you might burn yourself.
Make sure that children travelling in the
vehicle are not able to injure themselves on
the hot cigarette lighter or cause a fire with
it. 1
Ashtray
2 Cigarette lighter
3 Marking X
Make sure that the key is in position 2in
the ignition lock.
X Press marking 3.
Ashtray 1opens.
X Press in cigarette lighter 2.
Cigarette lighter 2will pop out automati-
cally when the heating element is red-hot. 12V sockets
The sockets can be used for accessories with
a maximum power consumption of 180 watts.
! If you are using all sockets in the vehicle,
make sure that you do not exceed the max-
imum current draw of 55 A. Otherwise, you
will overload the fuses.
X Make sure that the key is in position 2in
the ignition lock.
Socket in the cockpit !
If accessories are connected, make sure
that a maximum current draw of 15 A is not
exceeded. Otherwise, you will overload the
fuse.
! The socket is not suitable for operating
the electric air pump. Cont
rols
* optional
164_AKB; 5; 5, en-GB
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