2004-2012 Skoda Octavia 4 Door Using the system -> Heating and air conditioning system User Manual
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Using the system -> Heating and air conditioning system for Your Skoda Octavia 4 Door Second Generation (2004-2012)

108 Heating and air conditioning system  
Heating and air conditioning system  
Close air outlet vents  
Turn the vertical thumbwheel into the end position.  
Air outlet vents  
–
The information provided is valid for all vehicles.  
Redirecting air flow  
–
Swivel upward or downward the grille of the vents in order to change  
the direction of the air flow using the vertically arranged thumbwheel.  
–
Turn the horizontal thumbwheel on the vent to the right or left in order  
to change the air flow to the appropriate side.  
The air outlet vents 3, 4 ⇒ fig. 137 and 6 ⇒ fig. 138 can be closed and opened indi-  
vidually.  
The air outlet vents 6 are only fitted on vehicles with higher centre console.  
Warmed, unwarmed or cooled air will flow out of the air outlet vents according to  
the setting of the regulator of the heating or the air conditioning system* and the  
atmospheric conditions.  
Fig. 137 Air vents at the front  
Note  
The air outlet vents 2 ensure in the ventilation and cooling mode for a comfortable  
(no-draught) ventilation of the interior of the vehicle, also if the air outlet vents 4  
are closed.  
Fig. 138 Air vents at the rear  
Open air outlet vents  
–
Turn the vertical thumbwheel (not when in the end position).  
Heating and air conditioning system 109  
1
–
Pressing button A causes the recirculating air system ⇒  
to be  
Heating  
switched on.  
Using the system  
Control for air distribution  
The heating system delivers air into the interior of the vehicle and  
warms it as required.  
–
You can adjust the direction of the air flow using the air distribution  
C
control A ⇒ page 108.  
Rear window heater  
2
–
Press button A. Further information ⇒ page 67, “Rear window  
heater”.  
Auxiliary heating (auxiliary heating)*  
3
–
Press the button A in order to directly switch on/off the auxiliary  
heating (auxiliary heating and ventilation). Further information  
⇒ page 119, “Auxiliary heating (auxiliary heating and ventilation)*”.  
The air inlet in front of the windscreen must be free of ice, snow or leaves in order  
to ensure that the heating and ventilation systems operate properly.  
Fig. 139 Heating: Control elements  
The heating effect is dependent upon the coolant temperature, thus full heat  
output only occurs when the engine has reached its operating temperature.  
Setting temperature  
The blower should aways be on to prevent the windows from misting up.  
A
–
Turn the control dial A⇒ fig. 139 to the right in order to increase the  
temperature.  
WARNING  
A
–
Turn the control dial A to the left in order to increase the tempera-  
You should not leave recirculated air mode on over a longer period of time,  
as “stale” air may result in fatigue in the driver and occupants, divert your  
attention and also cause the windows to mist up. The risk of having an acci-  
dent increases. Switch recirculated air mode off as soon as the windows  
begin misting up.  
ture.  
Controlling blower  
B
–
Turn the blower switch Ainto one of the positions, 1 to 4, in order to  
switch the blower on.  
B
–
Turn the blower switch Ainto position 0 in order to switch the blower  
Note  
off.  
•
The whole heat output will be needed to unfrost the windscreen and side  
windows. No warm air will be fed to the footwell. This can lead to restriction of the  
heating comfort.  
Using the system  
Safety  
Driving Tips  
General Maintenance  
Breakdown assistance  
Technical Data  
110 Heating and air conditioning system  
The used air streams out through the air removal openings in the luggage  
•
compartment.  
Set heating  
Recommended settings of heating controls for:  
Setting of the control dial  
Set-up  
Air outlet vents 3  
Air outlet vents 4  
1
Button A  
A
A
B
A
C
A
Defrosting the windscreen and  
side windows  
up to the stop  
towards the right  
open and align with the side  
window  
3
do not switch on  
do not switch on  
briefly switched on  
do not switch on  
do not switch on  
close  
close  
open  
close  
open  
  
Free windscreen and side win- desired tempera-  
dows from mist  
open and align with the side  
window  
2 or 3  
ture  
up to the stop  
towards the right  
the fastest heating  
3
open  
open  
open  
desired tempera-  
ture  
comfortable heating  
2 or 3  
up to the stop  
towards the left  
Fresh air mode - ventilation  
desired position  
Heating and air conditioning system 111  
Recirculated air mode  
Climatic* (semi-automatic air conditioning system)  
In recirculated air mode air is sucked out of the interior of the vehicle  
and then fed back into the interior.  
Description  
The Climatic is a combined cooling and heating system. It makes it  
possible to optimally control the air temperature at any season of the  
year.  
Recirculated air mode prevents polluted air outside the vehicle from  
getting into the vehicle, for example when driving through a tunnel or  
when standing in a traffic jam.  
Description of the Climatic  
Switching recirculated air mode on  
It is important for your safety and for your driving comfort that the Climatic is oper-  
ating properly.  
–
Press the button  
- the warning light lights up in the button  
⇒ page 109, fig. 139.  
AC  
1
The cooling only operates if button  
following conditions are met:  
⇒ page 112, fig. 140 Ais pressed, and the  
Switching recirculated air mode off  
•
•
•
engine running,  
–
Press again the button  
- the warning light in the button goes out.  
outside temperature above approx. +2°C and  
blower switch switched on (positions 1 to 4).  
The recirculated air mode is switched off automatically if the air distribution control  
Ais in position ⇒ page 109, fig. 139. You can also switch recirculated air mode  
on again from this setting by repeatedly pressing button  
C
If the cooling system is switched on, the temperature and air humidity drops in the  
vehicle. The wellbeing of the occupants of the car is enhanced as a result of this  
particularly at high outside temperatures and a high air humidity. The system  
prevents the windows misting up during the cold season of the year.  
.
WARNING  
The heating effect is dependent upon the coolant temperature, thus full heat  
output only occurs when the engine has reached its operating temperature.  
You should not leave recirculated air mode on over a longer period of time,  
as “stale” air may result in fatigue in the driver and occupants, divert your  
attention and also cause the windows to mist up. The risk of having an acci-  
dent increases. Switch recirculated air mode off as soon as the windows  
begin misting up.  
It is possible to briefly activate recirculated air mode in order to enhance the  
cooling effect ⇒  
.
Air at a temperature of about 5°C may flow out of the vents under certain circum-  
stances when the cooling system is operating. Lengthy and uneven distribution of  
the air flow out of the vents and large differences in temperature, for example when  
getting out of the vehicle, can result in chills in sensitive persons.  
The air inlet in front of the windscreen must be free of ice, snow or leaves in order  
to ensure that the heating and cooling systems operate properly.  
After switching on the cooling Condensation from the evaporator of the air condi-  
tioning may drip down and form a puddle below the vehicle. This is quite normal  
and not an indication of a leak!  
Using the system  
Safety  
Driving Tips  
General Maintenance  
Breakdown assistance  
Technical Data  
112 Heating and air conditioning system  
WARNING  
Using the system  
•
For your own safety and that of other road users, ensure that all the  
windows are free of ice, snow and misting. Please familiarize yourself about  
how to correctly operate the heating and ventilation systems, how to demist  
and defrost the windows, as well as with the cooling mode.  
•
You should not leave recirculated air mode on over a longer period of  
time, as “stale” air may result in fatigue in the driver and occupants, divert  
your attention and also cause the windows to mist up. The risk of having an  
accident increases. Switch recirculated air mode off as soon as the windows  
begin misting up.  
Note  
•
We recommend that you do not smoke in the vehicle when the recirculating air  
mode is operating since the smoke which is drawn at the evaporator from the inte-  
rior of the vehicle forms deposits in the evaporator of the air conditioning system.  
This produces a permanent odour when the air conditioning system is operating  
which can only be eliminated through considerable effort and expense (replace-  
ment of compressor).  
Fig. 140 Climatic: Control elements  
Setting temperature  
A
–
Turn the control dial A⇒ fig. 140 to the right in order to increase the  
temperature.  
A
–
Turn the control dial A to the left in order to increase the tempera-  
ture.  
Controlling blower  
B
–
–
–
Turn the blower switch Ainto one of the positions, 1 to 4, in order to  
switch the blower on.  
B
Turn the blower switch Ainto position 0 in order to switch the blower  
off.  
4
Pressing button  
A - causes the recirculating air system  
⇒ page 114 to be switched on.  
Control for air distribution  
–
You can adjust the direction of the air flow using the air distribution  
C
control A ⇒ page 108.  
Heating and air conditioning system 113  
The set temperature will be automatically maintained other than when the  
control dial is on the extreme right or extreme left position:  
switching cooling on and off  
AC  
1
–
Press the button  
up in the button.  
A⇒ page 112, fig. 140. The warning light lights  
•
•
•
Extreme right position - full heating,  
Extreme left position - full cooling,  
AC  
–
When you again press the switch  
, the cooling system is switched  
The blower should aways be on to prevent the windows from misting up.  
off. The warning light in the button goes out.  
Rear window heater  
Note  
•
The whole heat output will be needed to unfrost the windscreen and side  
windows. No warm air will be fed to the footwell. This can lead to restriction of the  
heating comfort.  
2
–
Press button  
heater”.  
A. Further information ⇒ page 67, “Rear window  
•
The used air streams out through the air removal openings in the luggage  
compartment.  
Auxiliary heating (auxiliary heating)  
3
–
Press the button  
A in order to directly switch on/off the auxiliary  
•
If the cooling system has not been switched on for a lengthy period, odours may  
heating (auxiliary heating and ventilation. Further information  
be produced at the evaporator because of deposits. Switch the cooling system on  
at least once a month for approximately 5 minutes at the highest blower stage - also  
during the cold season of the year - in order to remove such odours. Also open a  
window for a short time.  
⇒ page 119, “Auxiliary heating (auxiliary heating and ventilation)*”.  
•
Please refer to the information regarding recirculated air mode ⇒ page 114.  
Set Climatic  
Recommended settings of Climatic controls for the respective operating modes:  
Setting of the control dial  
Set-up  
Button  
Air outlet vents 3  
A
A
B
A
C
A
1
A
4
A
Defrosting the windscreen and  
side windows  
recommended  
22°C  
open and align with the side  
window  
3
2
2
switched off  
switched on  
switched off  
do not switch on  
do not switch on  
briefly switched on  
Free windscreen and side win-  
dows from mist  
desired tempera-  
ture  
open and align with the side  
window  
recommended  
22°C  
the fastest heating  
open  
Using the system  
Safety  
Driving Tips  
General Maintenance  
Breakdown assistance  
Technical Data  
114 Heating and air conditioning system  
Set-up  
Setting of the control dial  
Button  
Air outlet vents 3  
A
A
B
A
C
A
1
A
4
A
desired tempera-  
ture  
comfortable heating  
the fastest cooling  
2 or 3  
switched off  
switched on  
switched on  
switched off  
do not switch on  
briefly switched on  
do not switch on  
do not switch on  
open  
  
recommended  
22°C  
briefly 4, then  
2 or 3  
open  
open and align to the roof  
open  
desired tempera-  
ture  
optimal cooling  
1, 2 or 3  
up to the stop  
towards the left  
Fresh air mode - ventilation  
desired position  
Recirculated air mode  
WARNING  
In recirculated air mode air is sucked out of the interior of the vehicle  
and then fed back into the interior.  
You should not leave recirculated air mode on over a longer period of time,  
as “stale” air may result in fatigue in the driver and occupants, divert your  
attention and also cause the windows to mist up. The risk of having an acci-  
dent increases. Switch recirculated air mode off as soon as the windows  
begin misting up.  
Recirculated air mode prevents polluted air outside the vehicle from  
getting into the vehicle, for example when driving through a tunnel or  
when standing in a traffic jam.  
Switching recirculated air mode on  
Using the air conditioning system economically  
4
–
Press the button  
up in the button.  
A ⇒ page 112, fig. 140 the warning light lights  
The compressor on the air conditioning system uses power from the engine when  
in cooling mode which will effect the fuel consumption.  
Switching recirculated air mode off  
It recommended to open the windows or the doors of a vehicle for which the inte-  
rior has been strongly heated through the effect of direct sunlight in order to allow  
the heated air to escape.  
–
Press again the button  
- the warning light in the button goes out.  
The recirculated air mode is switched off automatically if the air distribution control  
The cooling system should not be switched on while travelling when the window is  
open.  
C
Ais in position ⇒ page 112, fig. 140. You can also switch recirculated air mode  
on again from this setting by repeatedly pressing button  
.
The desired interior temperature can also be achieved without switching in the  
cooling system just by switching to fresh air mode.  
Heating and air conditioning system 115  
AC  
•
switched on.  
For the sake of the environment  
When you economize on fuel, you also reduce pollutant emissions.  
If the cooling system is switched on, the temperature and air humidity drops in the  
vehicle. The wellbeing of the occupants of the car is enhanced as a result of this  
particularly at high outside temperatures and a high air humidity. The system  
prevents the windows misting up during the cold season of the year.  
Operational problems  
The heating effect is dependent upon the coolant temperature, thus full heat  
output only occurs when the engine has reached its operating temperature.  
If the cooling system does not operate at outside temperatures higher than +5 °C,  
there is a problem in the system. The reasons for this may be:  
It is possible to briefly activate recirculated air mode in order to enhance the  
cooling effect ⇒ page 118.  
•
The fuse on the air conditioning system has blown. Check the fuse, replace it if  
necessary ⇒ page 258.  
The cooling system has switched off automatically for a short time because the  
The air inlet in front of the windscreen must be free of ice, snow or leaves in order  
to ensure that the heating and cooling systems operate properly.  
•
coolant temperature of the engine is too hot ⇒ page 18.  
The AC compressor is switched off at a high coolant temperature in order to provide  
cooling at a high load of the engine.  
If you are not able to rectify the operational problem yourself, or if the cooling  
capacity decreases, switch the cooling system off. Contact a specialist garage.  
After switching on the cooling Condensation from the evaporator of the air condi-  
tioning may drip down and form a puddle below the vehicle. This is quite normal  
and not an indication of a leak!  
Climatronic* (automatic air conditioning)  
Recommended setting for all periods of the year:  
•
•
•
Set the desired temperature, we recommend 22 °C.  
AUTO  
Description  
Press the button  
⇒ page 116, fig. 141.  
The Climatronic system is a combination of an automatic heating,  
fresh air and cooling system which provides optimal comfort for the  
occupants of the car.  
Move the air outlet vents 3 and 4, so that the air flow is directed slightly  
upwards.  
Aeration of the vehicle when ignition is switched off*  
The Climatronic maintains fully automatically a convenience temperature. This is  
achieved by automatically varying the temperature of the outflowing air, the blower  
stages and the air distribution. The system also takes into account sunlight which  
eliminates the need to alter the settings manually. The automatic mode  
⇒ page 117 ensures maximum wellbeing of the occupants at all times of the year.  
On models fitted with power sliding/tilting roof with solar cells, the fresh air blower  
is automatically switched over to “solar mode” if the sun ray's are sufficient after  
switching off the ignition. The solar cells on the sliding/tilting roof deliver power for  
the fresh air blower. This supplies the interior of the car with fresh air.  
For an optimum ventilation, the air outlet vents 3 and 4 must be opened  
⇒ page 108, fig. 137.  
Description of Climatronic system  
The cooling operates only if the following conditions are met:  
The ventilation functions only when the sliding/tilting roof is closed.  
•
•
engine running,  
outside temperature above approx. +2°C,  
Using the system  
Safety  
Driving Tips  
General Maintenance  
Breakdown assistance  
Technical Data  
116 Heating and air conditioning system  
WARNING  
Overview of the control elements  
The controls enable a separate setting of the temperature for the left  
and right side.  
•
For your own safety and that of other road users, ensure that all the  
windows are free of ice, snow and misting. Please familiarize yourself about  
how to correctly operate the heating and ventilation systems, how to demist  
and defrost the windows, as well as with the cooling mode.  
•
You should not leave recirculated air mode on over a longer period of  
time, as “stale” air may result in fatigue in the driver and occupants, divert  
your attention and also cause the windows to mist up. The risk of having an  
accident increases. Switch recirculated air mode off as soon as the windows  
begin misting up.  
Note  
•
If the cooling system has not been switched on for a lengthy period, odours may  
be produced at the evaporator because of deposits. Switch the cooling system on  
at least once a month for approximately 5 minutes at the highest blower stage - also  
during the cold season of the year - in order to remove such odours. Also open a  
window for a short time.  
Fig. 141 Climatronic: Control elements  
The buttons  
•
We recommend that you do not smoke in the vehicle when the recirculating air  
1
A Defrost windscreen intensively  
mode is operating since the smoke which is drawn at the evaporator from the inte-  
rior of the vehicle forms deposits in the evaporator of the air conditioning system.  
This produces a permanent odour when the air conditioning system is operating  
which can only be eliminated through considerable effort and expense (replace-  
ment of compressor).  
2
A Air flow to the windows  
3
A Air flow to head  
4
A Air flow in the footwell  
5
A Recirculated air mode  
with air quality sensor  
•
The used air streams out through the air removal openings in the luggage  
6
A Rear window heater  
compartment.  
Buttons / control dial  
•
On vehicles equipped with a factory-fitted radio* or navigation*, the informa-  
7
A Setting of the temperature for the left side, operation of the seat heating of the  
tion of the Climatronic is also shown on the display. This function can be switched  
off, see operating instructions of the radio* or the navigation system*.  
left front seat*  
8
AUTO  
A Automatic mode  
•
•
Using the cooling economically ⇒ page 114.  
Operational problems ⇒ page 115.  
9
OFF  
A Switching off Climatronic  
10  
A Setting the blower speed  
11  
A Button for direct switching on/off of auxiliary heating (auxiliary heating)*  
⇒ page 119  
12  
DUAL  
A Switching on/off of the temperature setting in dual mode  
Heating and air conditioning system 117  
13  
AC  
A Switching cooling on and off  
switching cooling on and off  
switching cooling on and off  
14  
A Setting of the temperature for the right side, operation of the seat heating of  
the right front seat*  
AC  
–
Press the button  
in the button.  
⇒ page 116, fig. 141. The warning light lights up  
Note  
Below the top row of buttons is located the interior temperature sensor. Do not  
glue or cover over the sensor, otherwise it could have an unfavourable effect on the  
Climatronic.  
AC  
–
When you again press the switch  
, the cooling system is switched  
off. The warning light in the button goes out. Only the function of the  
ventilation remains active when no lower temperature than the  
outside temperature can be reached.  
Automatic mode  
The automatic mode is used in order to maintain a constant temper-  
ature and to demist the windows in the interior of the car.  
Setting temperature  
You can separate the interior temperature for the left and right side sepa-  
rately.  
Switching automatic mode on  
–
–
Set a temperature between +18 °C and +26 °C.  
–
You can set the temperature for both sides after switching on the igni-  
Move the air outlet vents 3 and 4 ⇒ page 108, fig. 137, so that the air  
7
tion with the control dial A.  
flow is directed slightly upwards.  
–
If you wish to set the temperature for the right side, turn the control  
AUTO  
. In the right or left top corner a warning light  
–
Press the button  
14  
DUAL  
lights up, this indicates  
dial A. The warning light in the button  
lights up, depending on which unit was last selected.  
that differing temperatures for the left and right side can be set.  
AUTO  
If the warning light in the top right corner of the button  
lights up, the  
DUAL  
If the warning light in the button  
lights up, the temperature for both sides  
Climatronic operates in “HIGH” mode. The “HIGH” mode is the standard setting of  
the Climatronic.  
7
cannot be set with the control dial A. You can reinitiate this function by pressing  
DUAL  
the button  
. The warning light in the button which indicates the possibility to  
set differing temperatures for the left and right side, goes out.  
AUTO  
When pressing again the button  
, the Climatronic changes into the “LOW”  
mode and the warning light in the top left corner lights up. The Climatronic uses  
only in this mode the lower blower speed. However taking into account the noise  
level, this is more comfortable, yet be aware that the effectiveness of the air condi-  
tioning system is reduced particularly if the vehicle is fully occupied.  
You can set the interior temperature between +18°C and +26°C. The interior  
temperature is regulated automatically within this range. If you chose a tempera-  
ture lower than +18°C, a blue symbol lights up at the start of the numerical scale. If  
you chose a temperature higher than +26°C, a red symbol lights up at the end of  
the numerical scale. In both limit positions the Climatronic operates at maximum  
cooling or heating capacity, respectively. The temperature is not controlled in this  
case.  
AUTO  
By pressing again the button  
, you change into the “HIGH” mode.  
The automatic mode is switched off by pressing the button for the air distribution  
or increasing or decreasing the blower speed. The temperature is nevertheless  
regulated.  
Using the system  
Safety  
Driving Tips  
General Maintenance  
Breakdown assistance  
Technical Data  
118 Heating and air conditioning system  
Lengthy and uneven distribution of the air flow out of the vents (in particular at the  
leg area) and large differences in temperature, for example when getting out of the  
vehicle, can result in chills in sensitive persons.  
Switching recirculated air mode off  
AUTO  
–
Press the button  
or press the button  
repetitively, until the  
warning lights in the button go out.  
Recirculated air mode  
WARNING  
In recirculated air mode air is sucked out of the interior of the vehicle  
and then fed back into the interior. When the automatic air distribu-  
tion control is switched on, an air quality sensor measures the  
concentration of pollutants in the drawn-in air.  
You should not leave recirculated air mode on over a longer period of time,  
as “stale” air may result in fatigue in the driver and occupants, divert your  
attention and also cause the windows to mist up. The risk of having an acci-  
dent increases. Switch recirculated air mode off as soon as the windows  
begin misting up.  
Recirculated air mode prevents polluted air outside the vehicle from  
getting into the vehicle, for example when driving through a tunnel or  
when standing in a traffic jam. If a considerable increase in concentration  
of pollutants is recognized by the air quality sensor, when the automatic  
air distribution control is switched on, the air distribution control will  
temporarily be switched off. If the concentration of pollutants decreases  
to the normal level, the air distribution control is automatically switched  
off so that fresh air can be guided into the vehicle interior.  
Note  
1
•
If the windscreen mists up, press the button  
After the windscreen has been demisted, press the button  
The automatic air distribution control operates only if the outside temperature  
A ⇒ page 116, fig. 141.  
AUTO  
.
•
is higher than approx. 2°C.  
Controlling blower  
Switching recirculated air mode on  
There are a total of seven blower stages available.  
–
Press the button repeatedly  
side of the button lights up.  
until the warning light on the left  
The Climatronic system controls the blower stages automatically in line  
with the interior temperature. You can also, however, adapt the blower  
stages manually to suit your particular needs.  
Switch on automatic air distribution control  
–
Press the button repeatedly  
side of the button lights up.  
until the warning light on the right  
on the left side (reduce blower speed) or on  
–
Press again the button  
the right side (increase blower speed).  
Switch off automatic air distribution control temporarily  
If you switch off the blower, the Climatronic is switched off.  
–
If the air quality sensor does not switch on the air distribution control  
automatically when there is a nauseating smell, you can switch it on  
The set blower speed is displayed above the button  
number of warning lights come on.  
when the respective  
yourself by pressing the button  
the button on the left side.  
*. The warning light lights up in  
Heating and air conditioning system 119  
The auxiliary heating (auxiliary heating) warms up the coolant during the combus-  
tion of fuel from the vehicle tank. The coolant warms up the air, which (if the blower  
speed is not set to zero) flows into the occupant compartment.  
WARNING  
•
“Stale air” may result in fatigue in the driver and occupants, reduce  
attention levels and also cause the windows to mist up. The risk of having an  
accident increases.  
Auxiliary ventilation  
The auxiliary ventilation enables fresh air to flow into the vehicle interior by  
switching off the engine, whereby the interior temperature is effectively decreased  
(e.g. with the vehicle parked in the sun).  
•
•
Do not switch the Climatronic system off for longer than necessary.  
Switch the Climatronic system on as soon as the windows mist up.  
Defrosting windscreen  
WARNING  
•
The auxiliary heating must never be operated in closed rooms - risk of  
poisoning!  
Defrosting windscreen - switching on  
–
Press the button  
⇒ page 116, fig. 141.  
•
•
The auxiliary heating must not be running during refueling - risk of fire.  
The exhaust pipe of the auxiliary heating is located on the underside of  
the vehicle. Therefore do not place the vehicle, if you wish to operate the  
auxiliary heating, in such a way that the exhaust gases of the auxiliary  
heating can come easily into contact with inflammable materials (e.g. dry  
grass) or easily inflammable substances (e.g. fuel run out).  
Defrosting windscreen - switching off  
AUTO  
–
Once again press the button  
or the button  
.
The temperature control is controlled automatically. More air flows out of the air  
outlet vents 1.  
Note  
•
If the auxiliary heating runs, the fuel consumption comes from the vehicle tank.  
Therefore the auxiliary heating should not be operated, if there is very little fuel in  
the tank.  
Auxiliary heating (auxiliary heating and ventilation)*  
Description and important information  
•
The exhaust pipe of the auxiliary heating, which is located on the underside of  
the vehicle, must not be clogged and the exhaust flow must not be blocked.  
If the auxiliary heating and ventilation is running, the vehicle battery discharges.  
The auxiliary heating (auxiliary heating and ventilation) heats or  
supplies the interior of the vehicle with fresh air independent of the  
engine.  
•
If the auxiliary heating and ventilation has been operated several times over a  
longer period, the vehicle must be driven a few kilometers in order to recharge the  
vehicle battery.  
Auxiliary heating (auxiliary heating)  
The auxiliary heating (auxiliary heating) functions in connection with the Climatic or  
Climatronic.  
•
The auxiliary heating only switches the blower on, if it has achieved a coolant  
temperature of approx. 50 °C.  
At low outside temperatures, this can result in a formation of water vapour in  
It can be used when stationary, when engine is switched off for preheating of the  
vehicle as well as while driving (only during the heating phase of the engine).  
•
the area of the engine compartment. This is quite normal and is not an operating  
problem.  
Using the system  
Safety  
Driving Tips  
General Maintenance  
Breakdown assistance  
Technical Data  
120 Heating and air conditioning system  
•
After switching off the auxiliary heating, the coolant pump runs for a short  
period.  
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.  
•
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!).  
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.  
•
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  
Fig. 143 Information  
display: Aux. heating  
Basic setting  
–
–
–
–
On the information display, select from the Main menu the menu  
point Aux. heating.  
Fig. 142 Button for direct  
switching on/off of the auxil-  
iary heating (auxiliary  
heating and ventilation) on  
the operating part of the  
Climatic  
In the menu Aux. heating (auxiliary heating) ⇒ fig. 143 select the  
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).  
The auxiliary heating (auxiliary heating and ventilation) can be switched on or off at  
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.  
any time directly using the button  
on the operating part of the Climatic  
⇒ fig. 142 or on the operating part of the Climatronic.  
Heating and air conditioning system 121  
Changing the active pre-set time is carried out after selecting the menu point  
Activate in the menu Aux. heating (auxiliary heating) by selecting a pre-set time.  
–
–
–
By selecting the menu point Back, you will reach in the menu  
Aux. Heating (auxiliary heating).  
The prerequisite for the correct switching on of the auxiliary heating (auxiliary  
heating and ventilation) according to the programmed pre-set time is the correct  
setting of the current time and the weekday ⇒ page 120.  
In the menu Aux. heating (auxiliary heating) select the menu point  
Mode.  
In the menu Mode select the desired mode Heating or Ventilation.  
If the system is running, a warning light in the button for direct switching on/off of  
the auxiliary heating  
lights up.  
The running system deactivates after expiration of the operating period or is deac-  
tivated earlier by pressing the button for direct switching on/off of the auxiliary  
Programming  
heating  
⇒ page 120.  
For the programming of the auxiliary heating (auxiliary heating and ventilation) in  
the menu Aux. heating (Aux. heating) there are three pre-set times:  
The random pre-set time can be deactivated by selecting the menu point Deactive  
in the menu Activate.  
•
•
•
Pre-set time 1  
Pre-set time 2  
Pre-set time 3  
After selecting the menu point Factory setting in the menu Aux. heating  
(auxiliary heating), it is possible to change to the factory setting.  
In each pre-set time, the day and the time (hour and minute) can be set for  
switching on the auxiliary heating and/or ventilation.  
An empty position can be found between Sunday and Monday when selecting the  
day. If this empty position is selected, the activation is performed without taking  
into account the day.  
If you leave the pre-set menu by selecting the menu Back or do not operate the  
display for longer than 10°seconds, the set values are stored, but the pre-set time is  
not active.  
Both other pre-set times can be programmed and stored in the same way.  
If you select the menu Activate after setting the desired values, appears on the  
display Pre-set time (weekday, hours, minute) activated! (Pre-set time  
(weekday, hour, minute) activated! and the set pre-set time is active.  
Only one programmed pre-set time can be active.  
The last programmed pre-set time remains active.  
After the auxiliary heating activates at the set time, it is necessary to pre-set a time  
again.  
Using the system  
Safety  
Driving Tips  
General Maintenance  
Breakdown assistance  
Technical Data  

Related Topics

Using the system
Cockpit The brief instruction Basic functions and important information Instruments and Indicator/Warning Lights General view of the instrument cluster Engine revolutions counter Speedometer Coolant temperature gauge Fuel gauge Counter for distance driven Service Interval Display Digital clock Multi-functional indicator (onboard computer)* Information display* Auto Check Control* Warning lights Unlocking and locking Key Changing the battery of the radio remote control Electronic immobiliser Child safety lock Central locking system Remote control* Synchonisation of the remote control Anti-theft alarm system* Power windows* Electric sliding/tilting roof* Lights and Visibility Lights Interior lighting Visibility Windshield wiper and wash system Rear-view mirror Seats and Stowage Front seats Adjusting front seats electrically* Head restraints Middle rear head restraint Rear seats Pedals luggage compartment Net partition (Combi)* The roof rack* Cup holder Note holder Ashtray* Cigarette lighter*, power sockets Storage compartments Overview Storage compartment on the front passenger side Cooling of storage compartment on front passenger side* Storage compartment on the driver's side Storage compartment on the dash panel* Storage compartment in front centre console* Storage net on the front centre console* Storage compartment for spectacles* Storage compartment in the front doors Storage compartment below front passenger seat* Front seat armrest with storage compartment* Rear seat armrest with storage compartment* Storage compartment in rear centre console* Seat backrest with opening for skis* Through-loading bag (Unibag)* Side compartment* Storage compartment behind the rear seats* (Combi) Clothes hooks* Air outlet vents Heating Climatic* (semi-automatic air conditioning system) Climatronic* (automatic air conditioning) Auxiliary heating (auxiliary heating and ventilation)* Starting-off and Driving Setting steering wheel position Ignition lock Starting the engine Switching off the engine Shifting (manual gearbox) Handbrake Rear parking aid* Front and rear parking aid* Cruise control system (CCS)* Automatic gearbox Automatic gearbox* Communication Multifunction steering wheel* Mobile phones and two-way radio systems Universal telephone preinstallation GSM II* Universal telephone preinstallation GSM III* Phone voice phonebook* Inputs AUX-IN* and MDI* CD changer*

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