Page 81 of 244

Heating and air conditioning system
80Heating and air conditioning systemAir outlet ventsThe information provided is valid for all vehicles.Fig. 89 Air outlet ventsOpen the air outlet vents 3 and 4– Turn the vertical thumbwheel
(air outlet vents 3) or the ho
rizontal wheel (air outlet
vents 4) to the position
.
Close air outlet vents 3 and 4– Turn the vertical thumbwheel
(air outlet vents 3) or the ho
rizontal wheel (air outlet
vents 4) to the position
0.
Change air flow of air outlet vents 3 and 4– In order to change the strength of the ai
r flow, swivel the horizontal lamellas with
the aid of the moveable adjuster.
– In order to change the lateral direction of
the air flow, turn the vertical lamellas with
the aid of the moveable adjuster.
You can set the air supply to the individual
vents with the air distribution control
page 81, fig. 90
. Air outlet vents
3 and
4 can also be opened or
closed individually.
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 atmos- pheric conditions.Recirculated air modeIn 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 standi
ng in a traffic jam.
Switching recirculated air mode on– Press the button
page 83, fig. 91
, 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. The recirculated air mode is switched off automatically if the air distribution control is in position
page 83, fig. 91
. You can also switch recirc
ulated air mode on again
from this setting by repe
atedly pressing button .
WARNING
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 atten-tion and also cause the windows to mist up. The risk of having an accident increases. Switch recirculated air mo
de off as soon as the windows begin
misting up.
AC
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AC
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Heating and air conditioning system
81
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
HeatingUsing the system The heating system delivers air into the interior of the vehicle and warms it as required.Setting temperature– Turn the control dial
fig. 90
to the right in order to increase the temperature.
– Turn the control dial to the left in order to increase the temperature.Controlling blower– Turn the blower switch into one of the po
sitions, 1 to 4, in order to switch the
blower on.
– Turn the blower switch into position 0 in order to switch the blower off.– If you wish to shut off the fresh air supply
, use the button - recirculated air mode
page 80.
Control for air distribution– You can adjust the direction of the air
flow using the air distribution control
page 80.
Rear window heater– Press button . Further information
page 54, “Rear window heater”.
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. All controls apart from the control dial
can be set to any desired intermediate posi-
tion. The heating effect is dependent upon the c
oolant temperature, thus full heat output
only occurs when the engine has reached its operating temperature. The blower should aways be on to
prevent the windows from misting up.
Note
If the air distribution is positioned toward
s the windows, the total amount of air is
used to defrost the windows and thus no air will be fed to the footwell. This can lead to restriction of the heating comfort.
The used air streams out through the air removal openings in the luggage
compartment.
Fig. 90 Heating: Control elements
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Page 83 of 244
Heating and air conditioning system
82Set heatingRecommended settings of
heating controls for:
Note
We recommend that you leave the air outlet vents
3 page 80, fig. 89
in the opened
position.
Setup
Setting of the control dial
Button
Air outlet vents 3
Air outlet vents 4
Defrosting the windscreen and side windows
To the right up to
the stop
3
Do not switch on
Closing
Open and align with the side
window
Free windscreen and side win- dows from mist
Desired tempera-
ture
2 or 3
Do not switch on
Closing
Open and align with the side
window
The fastest heating
To the right up to
the stop
3
briefly switched on
Opening
Opening
Comfortable heating
Desired tempera-
ture
2 or 3
Do not switch on
Closing
Opening
Fresh air mode - ventilation
To the left up to the
stop
Desired position
Do not switch on
Opening
Opening
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Heating and air conditioning system
83
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Climatic (semi-automatic air conditioning system)*Description Climatic is a combined cooling an
d heating system with electronic
control of the convenience temperature in the vehicle interior. It makes it possible to optimally control the air temperature at any season of the year.Description of the Climatic It is important for your safety and for your
driving comfort that the Climatic is operating
properly. The air conditioning system operates when switch
page 83, fig. 91
is
pressed and the following
conditions are met:
engine running,
outside temperature above +2°C and
blower switch switched on (positions 1 to 4).
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 partic-
ularly at high outside temperatures and a
high air humidity. The system prevents the
windows misting up during th
e cold season of the year.
The heating effect is dependent upon the c
oolant temperature, thus
full heat output
only occurs when the engine has reached its operating temperature. It is possible to briefly activate recirculat
ed 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 operatin
g. Lengthy and uneven distribution of the
air flow out of the vents (in particular at the leg area) and large differences in temper-ature, for example when getting out of the ve
hicle, 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 be
low the vehicle. This is quite normal and
not an indication of a leak!
WARNING
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 mo
de 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 interior of the vehicle forms deposits in the evapor
ator of the air conditioning system. This
produces a permanent odour when the Climat
ic is operating which can only be elimi-
nated through considerable effort and
expense (replacement of compressor).
Using the system
AC
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Fig. 91 Climatic: Control elements
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Page 85 of 244

Heating and air conditioning system
84 Setting temperature– Turn the control dial
fig. 91
to the right in order to increase the temperature.
– Turn the control dial to the left in order to increase the temperature.Controlling blower– Turn the blower switch into one of the po
sitions, 1 to 4, in order to switch the
blower on.
– Turn the blower switch into position 0 in order to switch the blower off.– If you wish to shut off the fresh air supp
ly, use the button - recirculated air
mode.
Control for air distribution– You can adjust the direction of the inlet air flow using control .switching cooling on and off– Press the button
fig. 91
. The warning light lights up in the button.
– When you again press the switch , the cooling system is switched off. The
warning light in the button goes out.
The set temperature will be automatically maintained other than when the control dial is on the extreme
right or extreme left position:
Extreme right position - full heating.Extreme left position - full cooling.The controls and can be set to
any desired intermediate position.
The blower should aways be on to prevent the windows from misting up.
Note
The whole heat output will be needed to
unfrost the windscreen and side windows.
No warm air will be fed to the footwell. Th
is can lead to restriction of the heating
comfort.
The used air streams out through the air removal openings in the luggage compart-
ment.
If the cooling system has not been switched on for a lengthy period, odours may
be produced at the evaporator because of de
posits. Switch the air conditioning 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 80.
Have the air conditioning system cleaned by a specialist workshop.
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Heating and air conditioning system
85
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Set ClimaticRecommended settings of Climatic contro
ls for the respective operating modes:
Note
We recommend that you leave the air outlet vents
3 page 80, fig. 89
in the opened
position.
Setup
Setting of the control dial
Button
Air outlet vents 4
Defrosting the windscreen and side windows
Recommended
22°C
3
Do not switch on
Switched off
Open and align with the side
window
Free windscreen and side win- dows from mist
Desired tempera-
ture
2
Do not switch on
Switched on
Open and align with the side
window
The fastest heating
Recommended
22°C
3
Briefly switched on
Switched off
Opening
Comfortable heating
Desired tempera-
ture
2 or 3
Do not switch on
Switched off
Opening
The fastest cooling
Recommended
22°C
briefly4, then 2or
3
Briefly switched on
Switched on
Opening
Optimal cooling
Desired tempera-
ture
1, 2 or 3
Do not switch on
Switched on
Open and align to the roof
Fresh air mode - ventilation
To the left up to the
stop
Desired position
Do not switch on
Switched off
Opening
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Heating and air conditioning system
86Using the air conditioning system economicallyThe compressor on the Climatic uses powe
r from the engine when in cooling mode
which will effect the fuel consumption. 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 malfunctionsIf 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 of the Climatic is defective. Check the fuse, replace it if necessary
page 195.
The cooling system has switched off automatically for a short time because the
coolant temperature of the engine is too hot
page 16.
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. If there is a fault at the Climatronic, all symbols on the display flash after switching on the ignition for 15 seconds. Contact a specialist garage.
Climatronic* (automatic air conditioning)Description The Climatronic system is a combinat
ion of an automatic heating, fresh
air and cooling system which provides optimal comfort for the occu- pants of the car.The Climatronic maintains a constant temperat
ure 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 distribution. The system also takes into account sunlight which eliminates the need to
alter the settings manually. The
automatic mode
page 88 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 approx. +2°C,
switched on.
If the cooling system is switched on, th
e temperature and air humidity drops in the
vehicle. The wellbeing of the occupants of the car is enhanced as a result of this partic-ularly 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 recirculat
ed air mode in order to enhance the cooling
effect
.
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. The AC compressor is switched off at a high
coolant temperature in order to provide
cooling at a high load of the engine. After switching on the cooling
Condensation
from the evaporator of the air condi-
tioning may drip down and form a puddle be
low the vehicle. This is quite normal and
not an indication of a leak!
AC
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Heating and air conditioning system
87
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Recommended setting for all periods of the year:
Set the desired temperature, we recommend 22°C (72°F).
Press the button
fig. 92
.
Move the air outlet vents
3 and
4 so that the air flow is
directed slightly upwards.
Switching over between degrees
Celsius and degrees Fahrenheit
Press and hold the buttons and
fig. 92
at the same time. The information
in the desired temperature measuring unit appears in the display.
WARNING
For your own safety and that of other road users, ensure that all the
windows are free of ice, snow and mistin
g. Please familiarize yourself about
how to correctly operate th
e 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 minut
es at the highest blower stage - also
during the cold se aso n of the y ear - i n o rde
r to avoid such odours. Also open a window
for a short time.
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 interior of the vehicle forms deposits in the evapor
ator of the air conditioning system. This
produces a permanent odour when the air co
nditioning system is operating which can
only be eliminated through considerable
effort and expense (replacement of
compressor).
The used air streams out through the air
removal openings in the luggage compart-
ment.
Using the cooling economically
page 86.
Operational problems
page 86.
Overview of the control elementsFig. 92 Climatronic: Control elementsButtons / control dial
Setting the interior temperature
The displays
Selected interior temperature, e.g. +22°C (72°F) Degrees Celsius or FahrenheitAutomatic air conditioning mode De-mist or de-ice the windscreen Air flow to the windscreen, head, upper body and feet Recirculated air mode Air conditioning sy
stem switched on
Set blower speed
Buttons / control dial
Setting the blower speed Interior temperature sensorAutomatic mode
AUTO
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