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Climate control
182
Air conditioning
The air conditioning is operational while the
engine is running and cools the interior air to
the temperature set by the operator. In
addition, the air conditioning dehumidifies
the interior air and helps prevent window
fogging.
G
Warning!
If you switch off the cooling function, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog
up more quickly. Window fogging may
impair visibility and endanger you and
others.
i
Condensation may drip out from
underneath the vehicle. This is normal and
not an indication of a malfunction.
Deactivating
It is possible to deactivate the air
conditioning. The interior air will then no
longer be cooled or dehumidified.
X
Press button
9
.
The indicator lamp in the button goes out.
The cooling function switches off after a
short delay.
Activating
Moist air can fog up the windows. You can
dehumidify the interior air with the air
conditioning.
X
Press button
9
again.
The indicator lamp in the button comes on.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs which
are harmful to the ozone layer.
!
If the air conditioning cannot be activated
again, this indicates that the air
conditioning is losing refrigerant. The
compressor has turned off.
Have the air conditioning checked at the
nearest authorized Mercedes-Benz Center.
Automatic mode
When operating the climate control system in
automatic mode, the interior air temperature,
air volume and air distribution are adjusted
automatically.
In automatic mode, cooling with
dehumidification is switched on. This function
can be switched off if necessary.
G
Warning!
If you switch off the cooling function, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog
up more quickly. Window fogging may
impair visibility and endanger you and
others.
X
Set the desired temperature
(
Y
page 183).
X
Activating: Press button
U
.
The indicator lamp in the button comes on.
The air volume and air distribution are
adjusted automatically.
i
The settings for the passenger side are
also used for the rear passenger
compartment.
Controls in detail
Summary of Contents for 2009 R-Class
Page 1: ...R Class Operator s Manual ...
Page 28: ...Exterior view 26 Exterior view At a glance ...
Page 30: ...Cockpit 28 Cockpit At a glance ...
Page 32: ...Instrument cluster 30 Instrument cluster At a glance ...
Page 34: ...Instrument cluster 32 At a glance ...
Page 36: ...Storage compartments 34 Storage compartments At a glance ...
Page 44: ...42 ...
Page 84: ...82 ...
Page 149: ...Control system 147 Menus and submenus Controls in detail Z ...
Page 244: ...242 ...
Page 300: ...298 ...
Page 390: ...388 ...
Page 401: ...Weights 399 Weights Model All models Roof load max 220 lb 100 kg Technical data Z ...
Page 410: ...408 ...
Page 412: ...Order no 6515 1823 13 Part no 251 584 08 82 Edition A 2009 É2515840882 ËÍ 2515840882 ...