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128 Climate control
Picture no: 18217s.tif
Window demisting and de-icing
Misted or icy windows, e. g. due to damp
weather, damp clothi ng or low outside
temperatures: z
Cooling n on, the air conditioning
compressor automatically switches itself
off at low outside temperatures (icing).
z Turn the temperature switch clockwise.
z Move fan switch to 4.
z Move air distribution switch to l.
z Open side air vents as required and
direct them towards door windows.
z Switch on heated rear window Ü.
Electronic climate control system
3
Provides a the greatest amount of comfort
in the interior regardless of the weather,
outside temperature or season.
To ensure a constant and comfortable
climate in the vehicle, the temperature of
the inflowing air, the air-flow rate and the
air distribution are changed automatically
according to climatic conditions outside
the vehicle.
The climate is regulated automatically
based on personal settings.
Temperature changes due to external
influences, such as direct sunlight, are
automatically compensated.
9
Warning
Disregard of the inst ructions could lead
to misting or icing of the windows and
subsequent accidents due to impaired
visibility.
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129
Climate control
Data is shown on the information display.
Setting modifications are briefly shown in
the information display, superimposing
over the currently displayed menu.
May appear differently depending on the
type of display 394.
The climate control system settings are
stored in the vehicle key when the vehicle is
locked, see "Personalised key" 339.
Different settings are stored for each
remote control. Use of a remote control will
activate the settings associated with it.
Picture no: 18205s.tif
Manual settings such as operating without
cooling and air distribu tion can be selected
using the menu 3132.
When cooling (air conditioning
compressor) is active, air is cooled and
dehumidified.
The pollen filter removes dust, soot, pollen
and spores from the inflowing outside air.
Picture no: 18483s.tif
When set to automatic mode, the climate
control system provides the optimal
settings for almost all conditions. If
necessary, climate cont rol system settings
can be modified manually.
The climate control system is only
operational when the engine is running.
If you wish the climate control system 3 to
operate correctly, do not cover the sensor
on the instrument panel.
Cooling (air conditioning compressor)
switches off automati cally at low outside
temperatures.
FM AS [TP] REG CDin MP3
90.6
MHz
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Page 136 of 284
130 Climate control
Picture no: 18178s.tif
Automatic mode
Basic setting for maximum comfort:
zPress AUTO button.
z Open all air vents.
z Switch on AC compressor 3132.
z Set temperature to 22 C using left rotary
knob.
The temperature can be set higher or lower
as desired. Switching off the air conditioning
compressor (
Eco appears in display) can
reduce comfort and affect safety 3132.
All air vents are actuated automatically in
automatic mode. The air vents should
therefore always be open 3122.
Picture no: 18307s.tif
Temperature preset
The left rotary knob can be used to set
temperatures between 16 C and 28 C.
For reasons of comfort, temperature can
only be changed in small increments.
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131
Climate control
If a temperature below 16 C is set, Lo
appears in the display: the climate control
system runs constantly at maximum
cooling power. The temperature is not
regulated.
If a temperature above 28 C is set, Hi
appears in the display: the climate control
system runs constantly at maximum
heating power. The temperature is not
regulated.
The temperature setting is saved when the
ignition is switched off.
Picture no: 18484s.tif
Window demisting and de-icing
Misted or icy windows, e. g. due to damp
weather, damp clothing or low outside
temperatures:
Press V button. V appears in display:
control indicator in button illuminates.
Temperature and air distribution are set
automatically and the fan runs at a high
speed. The air flow can be increased or decreased
by turning the right knob.
To return to automatic mode: press
button
V or AUTO .
Heated rear window 346.
9
Warning
Disregard of the instructions could lead
to misting or icing of the windows and
subsequent accidents due to impaired
visibility.
FM AS [TP] REG CDinMP3
90.6
MHz
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Page 138 of 284

132 Climate control
Picture no: 18218s.tif
Manual settings
Under certain circumstances (e.g. iced or
misted windows), the functions of the
climate control system can be modified
manually.
Climate control system settings can be
changed via the centre knob, the buttons
and the menus depicted on the display.
To call up the menu, press the centre knob.
The Climate menu appears in the display.
Picture no: 18219s.tif
Individual menu items are marked by
turning the centre knob and selected by
pressing it. Selecting certain menus by
pressing the knob will open a submenu 3.
To exit a menu, turn the centre knob left or
right to Return or Main and select.
Manual settings are saved when the
ignition is switched off.
Picture no: 18221s.tif
Activating and deactivating cooling
system
Find option Climate in the menu AC and
press to select.
Deactivate when cooling or drying is
unnecessary (greatest fuel savings): Eco
appears in the display. The inflowing air is
neither cooled nor dehumidified. This
restricts the level of comfort offered by the
electronic climate control system. This may,
for example, cause the windows to mist up.
When cooling operates, condensation
forms and drips from the underside of the
vehicle.
Climate
Air distribut.
AC
Autom. blower
Air distribut.
Climate
Air distribut. AC Air conditioning
Autom. blower on / off
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133
Climate control
Picture no: 18219s.tif
Air distribution
Turn the centre knob. The Air distribut.
menu is activated, showing the possible air
distribution settings.
The Air distribut. menu can also be called
up via the Climate menu.
Return to automatic air distribution:
Deactivate corresponding setting or press
button AUTO.
Picture no: 18485s.tif
Air flow
Turn right knob right or left. The selected
fan speed in indicated with x and the
number in the display.
At speed 0 both the fan and cooling (air
conditioning compressor) are switched off.
To return to automatic mode: Press AUTO
button.
Picture no: 18223s.tif
Fan control in automatic mode 3
Fan regulation in automatic mode can be
modified.
Select menu item Automatic blower from
the Climate menu and select the desired
fan regulation.
Up Air distribution towards
windscreen and front door
windows.
Middle Air distribution to vehicle occupants via controllable front
air vents.
Down Air distribution towards footwell.
Air distribut.
FM AS [TP] REG CDinMP3
90.6
MHz
Automatic blower
Strong
Normal
Weak
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Page 140 of 284
134 Climate control
Picture no: 18224s.tif
Manual air recirculation mode
The air recirculation system prevents the
entry of outside air and the air in the
passenger compartment is circulated.
Operated with the 4 button. To deactivate manual
air recirculation:
Press button 4 again. The control
indicator in the butt on will go out.
Auxiliary heater Depending on outside temperature and
engine temperature, the passenger
compartment of vehicles with Quickheat 3
electric auxiliary heating is warmed up
more quickly.
Diesel-engined vehicles have a fuel-
powered auxiliary heater 3.
9
Warning
The exchange of fresh air is reduced in
air circulation mode. The quality of the
passenger compartment air deterio-
rates which may cause the vehicle occu-
pants to feel drowsy. In operation
without cooling the air humidity
increases, so the windows may mist up.
Consequently, the air circulation system
should only be run for short periods of
time.
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135
Climate control
Picture no: 18226s.tif
Air intake The air intakes in the engine compartment
in front of the windscreen must be kept free
of leaves, dirt and snow in order to provide
a supply of air.
Pollen filter The pollen filter cleans dust, soot, pollen
and spores from the air entering from
outside. The active carbon layer 3
eliminates most odours and noxious
environmental gases from the air.
Regular operationFor consistently good operation, the air
cooling system 3 must be switched on for
several minutes once per month regardless
of the weather and the time of year.
Operation not possible with the cooling
system switched on and when the outside
temperature is low. Service For optimal cooling performance, we
recommend that the climate control
system be checked annually, starting three
years after initial vehicle registration.
z Functionality and pressure test
z Heating functionality
z Leakage check
z Check of drive belts
z Cleaning of condenser and evaporator
drainage
z Performance check
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