2008 MERCEDES-BENZ R-CLASS MPV cooling

31, 2, 3 ...
2-zone Thermatic Malfunction indicator lamp . . . . . .279
4MATIC (permanent four-wheel
drive) . . . . . . . . . . . . . . . . . . . . . . . . . .154 A
ABS (Anti-lock Braking System) . . . ..58
Display message . . . . . . . . . .256, 257
Warning lamp . . . . . . . . . . . . . . . . .281
Acceleration
Technical data . . . . . . . . . . . . . . . .344
Accident
Notes . . . . . . . . . . . . . . . . . . . . . . .287
Active Service System PLUS
see Service indicator
Adaptive brake lamps . . . . . . . . . . . ..59
Adaptive Damping System see ADS
Additional functions (on-board
computer) . . . . . . . . . . . . . . . . . . . . . .136
ADS . . . . . . . . . . . . . . . . . . . . . . . . . . .152
Airbag Activatio n.. . . . . . . . . . . . . . . . . . . .41
Control unit . . . . . . . . . . . . . . . . . . .41
Driver's . . . . . . . . . . . . . . . . . . . . . . .45
Front . . . . . . . . . . . . . . . . . . . . . . . .45
Front passenger . . . . . . . . . . . . . . . .45PASSENGER AIRBAG OFF warning
lamp . . . . . . . . . . . . . . . . . . . . . .
.279
Sidebag s.. . . . . . . . . . . . . . . . . . . .45
System . . . . . . . . . . . . . . . . . . . . . . .43
Windowbags . . . . . . . . . . . . . . . . . . .46
Air cleaner
Display message . . . . . . . . . . . . . .274
Air conditioning
2-zone Thermatic . . . . . . . . . . . . . .161
Activating/deactivating . . . . . . . . .166
Activating/deactivating air-recir-
culation mode . . . . . . . . . . . . . . . .173
Air-recirculation mode with con-
venience opening/closing feature .173
Auxiliary heating/ventilation . . . . .174
Controlling automatically . . . . . . . .167
Cooling with air dehumidification . .167
Demisting the windscreen . . . . . . .172
Malfunction indicator lamp . . . . . .279
Misted-up windows . . . . . . . . . . . .172
Multi-zone Thermotronic . . . . . . . .163
Rear-compartment air condition-
ing . . . . . . . . . . . . . . . . . . . . . . . . .166
Rear window heating . . . . . . . . . . .173
Setting the air distribution . . . . . . .171
Setting the airflow . . . . . . . . . . . . .172
Setting the air vents . . . . . . . . . . . .169
Setting the temperature . . . . . . . . .168 Setting the temperature (rear
compartment) . . . . . . . . . . . . . . .
.169
Switching the residual heat func-
tion on/off . . . . . . . . . . . . . . . . . . .174
see Climate control
AIRMATIC package . . . . . . . . . . . . ..152
Antifreeze concentration . . . . . . . ..361
Anti-lock braking system see ABS
Anti-theft alarm system
see ATA
Anti-theft systems . . . . . . . . . . . . . . ..63
Armrest Adjusting (2nd row of seats) . . . . . .82
Ashtray . . . . . . . . . . . . . . . . . . . . . . . .205
ASSYST PLUS see Service indicator
ASSYST PLUS service indicator . . ..242
ATA (anti-theft alarm system) . . . . ..63
Switching off the alarm . . . . . . . . . .63
Audible warning signal . . . . . . . . . ..286
AUTO lights Display message . . . . . . . . . . . . . .270
Automatic car wash . . . . . . . . . . . ..244
Automatic transmission Display message . . . . . . . . . .260, 261
Driving tips . . . . . . . . . . . . . . . . . . .117
Emergency running mode . . . . . . .292
Malfunction . . . . . . . . . . . . . . . . . .292
Program selector button . . . . . . . .116 Index
251_AKB; 5; 7, en-GB
wobuchh,
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Air conditioning
159Air 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*
242-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.
24
Rear-compartment air conditioning* is only available in conjunction with multi-zone Thermotronic*. Cont
rols
* optional
251_AKB; 5; 7, en-GB
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Air conditioning
160 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*/panorama sliding
sunroof* closed. i
Ventilate the vehicle for a brief period
during warm weather, e.g. using the sum-
mer opening feature (Y page 108). 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
251_AKB; 5; 7, en-GB
wobuchh
,V ersion: 2.10.6
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Air conditioning
162 Function Recommendation/Notes
5 {
Directs the airflow through the demister vents (Y
page 171) 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 167) 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 174) 7 Sets the temperature, right i
Set the temperature to 22 †. (Y
page 168) 8 <
Switches the rear-compartment air-conditioning
on/off (Y
page 166) 9 a
Directs the airflow through the centre and side air
vents (Y
page 171) a Y
Directs the airflow to the footwells and side air
vents (Y
page 171) b Displays the airflow level
c ·
Reduces the airflow (Y
page 172) 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 173) 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 173) Cont
rols
251_AKB; 5; 7, en-GB
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Air conditioning
165Function 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 167) 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 174) e Display
f ·
Reduces the airflow (Y
page 172) 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 173) h 7
Directs the airflow through the centre and side air
vents, left (Y
page 171) j 8
Directs the airflow to the footwells and side air
vents, left (Y
page 171) 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 172) Cont
rols
251_AKB; 5; 7, en-GB
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Air conditioning
167
X
To deactivate: press the™button
(Y page 163).
MODE is shown in the display behind
the ) symbol.
X Press the ´button (Y page 163).
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
251_AKB; 5; 7, en-GB
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Air conditioning
172
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 26
R high temperature 26
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. 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.
26 Depending on the outside temperature. Cont
rols
* optional
251_AKB; 5; 7, en-GB
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Engine compartment
223H
Environmental note
When topping up the oil, take care not to
spill any. Oil must not be allowed to escape
into the soil or waterways. You would oth-
erwise be damaging the environment. Coolant
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 right-hand side of the
vehicle 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 360). Windscreen washer system/head-
lamp cleaning system*
The washer fluid reservoir is located in the
engine compartment on the right when
viewed in the direction of travel. The head-
lamp cleaning system is also supplied from
the washer fluid reservoir. 1
Cap
2 Washer fluid reservoir Operation
* optional
251_AKB; 5; 7, en-GB
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