
Heating and air conditioning system 121
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Fresh air mode - ventilation
Non pre-warmed fresh air streams through the air inlet nozzles
3 and 4 for
the following settings.
Recirculated air mode must not be switched on.
•Turn the control dial ⇒p a g e 11 9 , f i g . 11 6 to the left up to the stop
•Blower switch in the desired position
•Turn the air distribution control into the position
•Open air outlet vents 3 and 4 ⇒ page 122, fig. 117
The control dial can be set to other positions as required.
Recirculated air mode
In recirculated air mode air is sucked out of the interior of
the vehicle and then fed back into the interior.
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
– Press the button - the warning light lights up in the button ⇒page 119, fig. 116 .
Switching recirculated air mode off
– Press again the button - the warning light in the button goes out.
The recirculated air mode is switched off automatically if the air distribu-
tion control is in position ⇒ page 119, fig. 116 . You can also switch recirculated air mode on again from this setting by repeatedly pressing
button .
WARNING
You should not leave recirculated air mode on over a longer period
of time. “Stale air” may result in
fatigue in the driver and passen-
gers, reduce attention levels 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.AA
AB
AC
AC
AC
s24s.book Page 121 Thursday, November 24, 2005 12:27 PM

Heating and air conditioning system 125
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
•The used air streams out through the air removal openings in the
luggage compartment.
•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.
•Please refer to the information regarding recirculated air mode
⇒ page 126.
Set Climatic
Recommended settings of Climatic controls for the respective operating
modes:
Defrosting the windscreen and side windows
•Put the control dial ⇒page 124, fig. 119 to the temperature selected
as usual by you (we recommend 22 °C); Climatic puts automatically the
heating to maximum power, until the temperature selected by you is
achieved
•Blower switch in position 3
•Turn the air distribution control into the position
•Open air outlet vents 3 ⇒ page 127, fig. 120 and point towards the side
window
•Close the air outlet vents 4
Keeping windscreen and side windows demisted
We recommend that you use the following setting in cases where the
windows are misted up more than usual (e.g. when it is raining):
Blower switch in position 2
Turn the air distribution control into the position
Open air outlet vents 3 and point towards the side window
Close the air outlet vents 4
Switch on the cooling system by pressing button
Warming up the inside of the vehicle as rapidly as possible
•Put the control dial to the temperature selected as usual by you (we
recommend 22 °C); Climatic puts au tomatically the heating to maximum
power, until the temperature selected by you is achieved
•Blower switch in position 3
•Turn the air distribution control into the position
•Open the air outlet vents 3 and 4
•We recommend briefly pressing button air recirculation mode. The
windows can steam up in this position however.
Heating the vehicle to a comfortable temperature
We recommend the following setting once the windows are no longer
misted up and the desired teperature has been reached:
•Control dial at the desired heat temperature
•Blower switch in position 2 or 3
•Turn the air distribution control into the position
•Open the air outlet vents 3
•Close the air outlet vents 4
•Set the air distribution regulator as required between positions
and , if the windscreen gets misted up again.
Cooling down the inside of the vehicle as rapidly as possible
•Close all windows and the sliding/tilting roof
•Put the control dial to the temperature selected as usual by you (we
recommend 22 °C); Climatic puts au tomatically the heating to maximum
power, until the temperature selected by you is achieved.
AA
AB
AC
AB
AC
A1
AA
AB
AC
A3
AA
AB
AC
AC
AA
s24s.book Page 125 Thursday, November 24, 2005 12:27 PM

Heating and air conditioning system
126
•Control dial in the position 4, supplies the interior of the car with
fresh air.
•After brief airing, turn the control dial to the position 2 or 3
•Turn the air distribution control into the position
•Open the air outlet vents 3 and 4
•Switch on the cooling system by pressing button
•We recommend briefly pressing button air recirculation mode.
Optimum cooling
•Control dial at the desired heat temperature. This temperature will
be maintained automatically.
•Blower switch in position 1, 2 , or 3
•Turn the air distribution control into the position
•Open the air outlet vents 3 and 4
•Switch on the cooling system by pressing button
•We recommend setting the air outlet vents 3 and 4 in such a way that
the air flows to the rear over the heads of the occupants. Do not switch to
recirculated air mode.
Fresh air mode - ventilation
Non pre-warmed fresh air streams through the air inlet nozzles 3 and 4 for
the following settings.
•Turn the control dial ⇒page 124, fig. 119 to the left up to the stop
•Blower switch in the desired position
•Turn the air distribution control into the position
•Open air outlet vents 3 and 4 ⇒ page 127, fig. 120
•Switch off the cooling by pressing button
•Switch off the recirculated air mode by pressing button
The control dial can be set to other positions as required.
Recirculated air mode
In recirculated air mode air is sucked out of the interior of
the vehicle and then fed back into the interior.
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
– Press the button ⇒page 124, fig. 119 - the warning light
lights up in the button.
Switching recirculated air mode off
– Press again the button - the warning light in the button goes out.
Recirculated air mode is switched off automatically if the air distribution
control is in position ⇒ page 124, fig. 119 . You can also switch recir-
culated air mode on again from this setting by repeatedly pressing button
.
WARNING
You should not leave recirculated air mode on over a longer period
of time. “Stale air” may result in fatigue in the driver and passen-
gers, reduce attention levels 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.
AB
AB
AC
A1
A3
AA
AB
AC
A1
AA
AB
AC
A1
A3
AC
AC
s24s.book Page 126 Thursday, November 24, 2005 12:27 PM

Heating and air conditioning system
128
It recommended to open the windows or the doors of a vehicle for which
the interior has been strongly heated through the effect of direct sunlight
in order to allow the heated air to escape.
The cooling system should not be switched on while travelling when the
window is open.
The desired interior temperature can also be achieved without switching
in the cooling system just by switching to fresh air mode.
For the sake of the environment
When you economize on fuel, you also reduce pollutant emissions.
Operational problems
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:
•The fuse on the air conditioning system has blown. Check the fuse,
replace it if necessary ⇒page 288.
•The cooling system has switched off automatically for a short time
because the coolant temperature of the engine is too hot ⇒page 14.
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.
Climatronic* (automatic air conditioning)
Description
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.
The Climatronic maintains a constant temperature fully automatically,
once it has been set. This is achieved by automatically varying the
temperature of the outflowing air, the blower stages and the air distribu-
tion. The system also takes into account bright sunlight which eliminates
the need to alter the settings manually. The automatic mode ⇒ page 130
ensures maximum wellbeing of the occupants at all times of the year.
Description of Climatronic system
The cooling operates only if the following conditions are met:
•engine running,
•outside temperature above +2 °C,
•the button is not pressed.
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.
The heating effect is dependent upon the coolant temperature, thus full
heat output only occurs when the engine has reached its operating
temperature.
It is possible to briefly activate recirculated air mode in order to enhance
the cooling effect ⇒.ECON
s24s.book Page 128 Thursday, November 24, 2005 12:27 PM

Heating and air conditioning system 135
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Using the system
So that the auxiliary heating (auxiliary heating and ventila-
tion) functions according to your expectations, it is neces-
sary to carry out the basic setting before its programming.
Basic setting
– In the information display, select from the menu Main menu
the Menu Setup (settings) ⇒ page 24, fig. 11 .
– In the menu Settings select the menu Aux. Heating
(auxiliary heating) .
– In the menu Aux. Heating (auxiliary heating) ⇒ fig. 125
select the menu Weekday and set the current day.
– Return to a higher level by selecting the menu Back, i. e. in the menu Aux. Heating (auxiliary heating) .– In the menu Aux. Heating
select the menu Running time and
set the desired operating period in steps of 1 minute. The
operating period can be 5 to 60 minutes.
– Return to a higher level by selecting the menu Back in the
menu Aux. Heating.
– In the menu Aux. Heating select the menu Mode.
– In the menu Mode select the desired mode Heating or
Ventilation .
Programming
For the programming of the auxiliary heating (auxiliary heating and venti-
lation) in the menu Aux. Heating there are three pre-set times:
•Pre-set time 1
•Pre-set time 2
•Pre-set time 3
In each pre-set time, the day (if necessary each day = daily) and the time
(hour and minute) can be set for the operating period of the auxiliary
heating and/or ventilation.
If you leave the pre-set menu by selecting 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, Pre-set
time (weekday, hours, minute) activated! is displayed in the display and
the set pre-set time is active.
Only one programmed pre-set time can be active.
Fig. 125 Informations
display: Aux. Heating
(auxiliary heating)
s24s.book Page 135 Thursday, November 24, 2005 12:27 PM