cooling MERCEDES-BENZ ML SUV 2008 Owners Manual

31, 2, 3 ...
2-zone Thermatic Malfunction indicator lamp . . . . . .286
4-ETS . . . . . . . . . . . . . . . . . . . . . . . . . . .60
4MATIC (permanent four-wheel
drive) . . . . . . . . . . . . . . . . . . . . . . . . . .138 A
ABS (Anti-lock Braking System) . . . ..57
Display message . . . . . . . . . .260, 261
Warning lamp . . . . . . . . . . . . . . . . .288
Acceleration
Technical data . . . . . . . . . . . . . . . .353
Accident
Notes . . . . . . . . . . . . . . . . . . . . . . .294
Active Service System PLUS
see Service indicator
Adaptive brake lamps . . . . . . . . . . . ..58
Adaptive Damping System see ADS
Additional functions (on-board
computer) . . . . . . . . . . . . . . . . . . . . . .134
ADS (Adaptive Damping System) . ..1 57
Airbag Activatio n.. . . . . . . . . . . . . . . . . . . .41
Control unit . . . . . . . . . . . . . . . . . . .41
Driver's . . . . . . . . . . . . . . . . . . . . . . .45
Driver's knee airba g.. . . . . . . . . . ..45
Front . . . . . . . . . . . . . . . . . . . . . . . .45Front passenger . . . . . . . . . . . . . . .
.45
PASSENGER AIRBAG OFF warning
lamp . . . . . . . . . . . . . . . . . . . . . . .286
Sidebag s.. . . . . . . . . . . . . . . . . . . .45
System . . . . . . . . . . . . . . . . . . . . . . .43
Windowbags . . . . . . . . . . . . . . . . . . .46
Air cleaner
Display message . . . . . . . . . . . . . .279
Air conditioning
2-zone Thermatic . . . . . . . . . . . . . .171
Activating/deactivating . . . . . . . . .176
Activating/deactivating air-recir-
culation mode . . . . . . . . . . . . . . . .182
Air-recirculation mode with con-
venience opening/closing feature .183
Auxiliary heating/ventilation . . . . .184
Controlling automatically . . . . . . . .177
Cooling with air dehumidification . .177
Demisting the windscreen . . . . . . .181
Malfunction indicator lamp . . . . . .286
Misted-up windows . . . . . . . . . . . .182
Multi-zone Thermotronic . . . . . . . .173
Rear-compartment air condition-
ing . . . . . . . . . . . . . . . . . . . . . . . . .176
Rear window heating . . . . . . . . . . .182
Setting the air distribution . . . . . . .181
Setting the airflow . . . . . . . . . . . . .181
Setting the air vents . . . . . . . . . . . .179
Setting the temperature . . . . . . . . .178 Setting the temperature (rear
compartment) . . . . . . . . . . . . . . .
.179
Switching the residual heat func-
tion on/off . . . . . . . . . . . . . . . . . . .183
see Climate control
AIRMATIC package . . . . . . . . . . . . ..156
Antifreeze concentration . . . . . . . ..371
Anti-glare film . . . . . . . . . . . . . . . . . .214
Anti-lock braking system see ABS
Anti-theft alarm system
see ATA
Anti-theft systems . . . . . . . . . . . . . . ..62
Ashtray . . . . . . . . . . . . . . . . . . . . . . . .203
ASSYST PLUS see Service indicator
ASSYST PLUS service indicator . . ..246
ATA (anti-theft alarm system) . . . . ..62
Switching off the alarm . . . . . . . . . .63
Audible warning signal . . . . . . . . . ..293
AUTO lights Display message . . . . . . . . . . . . . .276
Automatic car wash . . . . . . . . . . . ..248
Automatic transmission Display message . . . . . . . . . .264, 265
Driving tips . . . . . . . . . . . . . . . . . . .109
Emergency running mode . . . . . . .299
Malfunction . . . . . . . . . . . . . . . . . .299
Program selector button . . . .111, 112
Selector lever positions . . . . . . . . .107 Index
164_AKB; 5; 5, en-GB
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Air conditioning
169Air conditioning
Overview of air-conditioning systems
The vehicle is equipped with one of the following air-conditioning systems: 2-zone Thermatic
Multi-zone Thermotronic* Rear-compartment air conditioning*
212-zone Thermatic is an automatic air-condi-
tioning system combining an automatic heat-
ing and ventilation system with a cooling
system. You can control the air conditioning
separately for the driver's and front-
passenger sides. Multi-zone Thermotronic is a luxury automatic
air-conditioning system combining an auto-
matic heating and ventilation system with a
cooling system. You can control the air con-
ditioning separately for each zone in the vehi-
cle. The rear-compartment air conditioning
allows separate settings for the rear com-
partment.
21
Rear-compartment air conditioning* is only available in conjunction with multi-zone Thermotronic*. Cont
rols
* optional
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Air conditioning
170 General notes
2-zone Thermatic/multi-zone Thermotronic*
controls the temperature and the humidity of
the vehicle interior and filters out undesirable
substances from the air.
2-zone Thermatic/multi-zone Thermotronic*
is only operational when the engine is run-
ning. Optimum operation is only achieved
when you drive with the side windows and
sliding/tilting sunroof* closed. i
Ventilate the vehicle for a brief period
during warm weather, e.g. using the sum-
mer opening feature (Y page 101). This will
speed up the cooling process and the
desired interior temperature will be
reached more quickly.
i The integrated filter filters out most par-
ticles of dust and completely filters out
pollen. A clogged filter reduces the amount
of air supplied to the vehicle interior. For
this reason, you should always observe the interval for replacing the filter, which is
specified in the Service Booklet. As it
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Service Booklet. G
Risk of accident
Observe the settings recommended on the
following pages. The windows could other-
wise mist up. This may obstruct your view
of the traffic situation, thereby causing an
accident. Cont
rols
* optional
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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
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Air conditioning
175Function Recommendation/Notes
d 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) e Display
f ·
Reduces the airflow (Y
page 181) g :
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) h 7
Directs the airflow through the centre and side air
vents, left (Y
page 181) j 8
Directs the airflow to the footwells and side air
vents, left (Y
page 181) k Interior temperature sensor
l ;
MONO function i
The settings made for the driver's side are adopted in
three air-conditioning zones. (Y
page 181) Cont
rols
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Air conditioning
177
X
To deactivate: press the™button
(Y page 173).
MODE is shown in the display behind
the ) symbol.
X Press the ´button (Y page 173).
OFF is shown in the display behind
the ) symbol.
Activating and deactivating the rear-
compartment air conditioning via the
rear-compartment air-conditioning sys-
tem* X
Turn the key to position 2in the ignition
lock.
X Activate multi-zone Thermotronic*.
X To activate: press theUbutton.
The indicator lamp in the Ubutton
comes on.
X To deactivate: press the´button.
The indicator lamp in the ´button
comes on. 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.
Condensation may drip from the underside 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. The cooling with air dehumidification
function has a delayed switch-off feature. Controlling the air conditioning auto-
matically
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the tem-
perature of the dispensed air, the airflow and
the air distribution.
The automatic air conditioning will achieve
optimal operation if "cooling with air dehu-
midification" is also activated. If necessary,
cooling with air dehumidification can be deac-
tivated. Cont
rols
* optional
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Air conditioning
181Setting the air distribution
Vehicles with multi-zone Thermotronic*: you
can set the air distribution individually for the
driver's and front-passenger sides.
2-zone Thermatic/multi-zone
Thermotronic*:
6 directs the airflow through the demis-
ter vents
Z directs the airflow through the demis-
ter vents
{ directs the airflow through the demis-
ter vents
8 directs the airflow through the footwell
and side air vents
Y directs the airflow through the footwell
and side air vents
7 directs the airflow through the centre
and side air vents
a directs the airflow through the centre
and side air vents
Rear-compartment air conditioning*:
Z directs the airflow through the rear-
compartment air vents
Y directs the airflow through the footwell
air vents X
Turn the key to position 2in the ignition
lock.
X Press the 6/Z/{/8/
Y/ 7ora button. Setting the airflow
X Turn the key to position 2in the ignition
lock.
X To increase/reduce: press theQor
· button. Switching the Mono function on/off
Multi-zone Thermotronic*: you can use the
MONO function to adopt the temperature, air
distribution and airflow settings on the driv-
er's side for the front-passenger side.
X Press the zbutton.
The indicator lamp in the zswitch lights
up or goes out. Demisting the windscreen
i You should only select the "demisting"
function until the windscreen is clear again.
X Turn the key to position 2in the ignition
lock.
X To activate: press the|button.
The indicator lamp in the |button
comes on.
The system automatically switches to the
following functions:
R cooling with air dehumidification on
R high airflow 23
R high temperature 23
R air distribution to the windscreen and
front side windows
R air-recirculation mode off
X To switch off: press the|button.
The indicator lamp in the |button goes
out. The previously selected settings come
into effect again. The cooling with air dehu-
midification function remains on. Air-recir-
culation mode remains deactivated.
or
X Press the ´button.
23 Depending on the outside temperature. Cont
rols
* optional
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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
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Engine compartment
223Coolant
G
Risk of injury
The cooling system is pressurised. There-
fore, only unscrew the cap once the engine
has cooled down. The coolant temperature
gauge must display less than 70 °C. You
could otherwise be scalded by escaping hot
coolant.
Coolant consists of water and antifreeze/cor-
rosion inhibitor. Only check the coolant level
when the vehicle is on a level surface and the
engine has cooled down. Checking the coolant level The expansion tank is located in the engine
compartment on the left when viewed in the
direction of travel. 1
Cap
2 Expansion tank
3 Marker bar
X Slowly turn cap 1by half a turn anti-clock-
wise to allow excess pressure to escape.
X Turn cap 1further anti-clockwise and
remove it.
There is sufficient coolant in expansion
tank 2if the coolant is level with the
marker bar 3in the filler neck when cold
or approximately 1.5 cm higher when hot. X
Top up the coolant if necessary.
X Replace cap 1and tighten all the way to
the stop.
You will find further information about coolant
in the "Technical data" section
(Y page 370). Windscreen washer system/head-
lamp cleaning system*
The washer fluid reservoir is located in the
engine compartment on the left-hand side of
the vehicle when viewed in the direction of
travel. The headlamp cleaning system is also
supplied from the washer fluid reservoir. 1
Cap
X Add windscreen washer concentrate to the
washer fluid all year round. Operation
* optional
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Display
messages 269Display messages Possible cause/consequence Possible solution
$ At least one door is open. X
Close the doors. D The cooling fan for the coolant is faulty. X
If the coolant temperature is less than 120 †,
you can continue driving to the nearest quali-
fied specialist workshop.
X In doing so, avoid heavy loads on the engine
(e.g. driving in mountainous terrain) and stop-
and-go driving. \ Trailer hitch
Check lock mech. Vehicles with a fold-out trailer hitch*: The
trailer hitch* is not engaged properly. X
Stop the vehicle. Pay attention to the traffic
conditions as you do so.
X Allow the ball coupling to engage in the end
position (Y page 241). # The battery is not being charged. Possible
causes are:
R
a faulty alternator
R a torn poly-V-belt
R a malfunction in the electronics X
Stop immediately and safely when traffic con-
ditions allow and check the poly-V-belt.
X If it has torn: do not drive on. Contact the
nearest qualified specialist workshop.
X If it is not damaged: have the vehicle checked
immediately at a qualified specialist workshop. # Battery/Alternator
Stop vehicle The battery is faulty. X
Pull over as soon as it is safe to do so.
X Do not continue driving under any circumstan-
ces.
X Consult the nearest qualified specialist work-
shop. Practical advi
ce
* optional
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