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Operating the auxiliary heating/ventilation
draws on the vehicle battery. After you have
heated or ventilated the vehicle a maximum of
two times, drive for a longer distance.
Switch the auxiliary heating on regularly once a
month for about ten minutes.
The auxiliary heating heats the air in the vehicle
interior to the set temperature. This occurs with-
out using the heat of the running engine. The
auxiliary heating is operated directly using the
vehicle's fuel. For this reason, the tank content
must be at least at reserve fuel level to ensure
that the auxiliary heating functions.
The auxiliary heating or auxiliary ventilation
automatically adjusts to changes in tempera-
ture and weather conditions. For this reason,
the auxiliary heating could switch from ventila-
tion mode to heating mode or from heating
mode to ventilation mode.
The auxiliary heating switches off when the
engine is switched off. The auxiliary ventilation
is not active if the engine is running.
The auxiliary heating or auxiliary ventilation
switches off automatically after 50 minutes.
This time limit can be altered. To do this, visit a
qualified specialist workshop.
You cannot use the auxiliary ventilation to cool
the vehicle interior to a temperature lower than
the outside temperature.
Before switching on
Turn the key to position 2 in the ignition lock
X
(
page 145).
Y
Set the desired temperature using the w
X
rocker switch on the front control unit.
If you do not alter the temperature before
switching on the auxiliary heating or auxiliary
ventilation, the last temperature setting will be
adopted.
Auxiliary heating or auxiliary ventilation can also
be switched on if the manually set climate con-
trol is activated. Optimum comfort is attained
when the system is set to automatic mode. Set
the temperature to 22 †.
You can switch the auxiliary heating or auxiliary
ventilation on or off:
using the rocker switch on the centre console
R
(
page 139)
Y
using the remote control (
R
Operating the climate control system
The remote control can be used to set up to
three departure times, one of which may be pre-
selected.
Switching the auxiliary heating/venti-
lation on/off using the centre console
rocker switch
General notes
The colours of the indicator lamps in rocker
switch : have the following meanings:
R
R
R
Activating/deactivating
X
X
X
X
page 140)
Y
blue: auxiliary ventilation is switched on
red: auxiliary heating is activated
yellow: departure time is preselected
To switch on auxiliary heating or auxiliary
ventilation: press rocker switch : up or
down.
The red or the blue indicator lamp above
rocker switch : lights up.
To set the temperature: switch on auxiliary
heating or auxiliary ventilation.
The multimedia system is activated for
approximately one minute.
Set the desired temperature using the multi-
media system (see the separate operating
instructions).
To switch off auxiliary heating or auxiliary
ventilation: press rocker switch : up or
down.
The red or the blue indicator lamp above
rocker switch : goes out.
139
Z
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