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Heating and air conditioning system
After switching off the auxiliary heating, the coolant pump runs for a short
period.
The auxiliary heating and ventilation does not switch on or comes on, if the
vehicle battery indicates a low loading state.
The auxiliary heating (auxiliary heating) does not switch on, if the following was
shown in the information display or before switching off the ignition: Please refuel!
(Please refuel!).
The air inlet in front of the windscreen must be free of ice, snow or leaves in
order to ensure that the auxiliary heating operates properly.
So that warm air can flow into the vehicle interior after switching on the auxil-
iary heating, you must maintain the temperature normally selected by you (we
recommend 22°C). It is recommended to put the air flow in the position
On vehicles with DPF (diesel particle filter) the warm coolant heats up the
engine.
Direct switching on/off
The auxiliary heating (auxiliary heating and ventilation) can be switched on or off at
any time directly using the button
⇒ fig. 142
or on the operating part of the Climatronic.
Fig. 142 Button for direct
switching on/off of the auxil-
iary heating (auxiliary
heating and ventilation) on
the operating part of the
Climatic
on the operating part of the Climatic
If the auxiliary heating and ventilation is not switched off earlier, it switches off
automatically after the expiration of the set operating period, in the menu Running
time.
Using the system
So that the auxiliary heating (auxiliary heating and ventilation) func-
tions according to your expectations, it is necessary to carry out the
basic setting before its programming.
.
Basic setting
– On the information display, select from the Main menu the menu
point Aux. heating.
– In the menu Aux. heating (auxiliary heating)
menu point Weekday and set the current day.
– Return to a higher level by selecting the menu point Back, i. e. in the
menu Aux. Heating (auxiliary heating).
– In the menu Aux. Heating select the menu point Running time and
set the desired operating period in steps of 5 minutes. The operating
period can be 10 to 60 minutes.
Fig. 143 Information
display: Aux. heating
⇒ fig. 143
select the
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