Page 170 of 325

Air conditioning
168Switching the air conditioner on/offSwitching the air conditioner off: models with an button
– Press the button. The air conditioner is switched off and the
supply of air from outside the vehicle is cut off.
Switching the air conditioner off: models with a button
– Keep pressing the button for the blower until the display segment is empty. The air conditioner is switched off and the
supply of air from outside the vehicle is cut off.
Switching the air conditioner on: models with an button
– Press the button again, or
– Press the button or
– Press one of the air distribution buttons , or .
Switching the air conditioner on: models with a button
– Press the button for the blower, or
– Press the button or
– Press one of the air distribution buttons , or .The air conditioner also starts to operate if one of the blower or temperature
selector buttons is pressed.
Blower speed
The automatically selected blower speed can be reduced or
increased manually.– Press the and buttons in the centre of the control panel ⇒page 164, fig. 141 to set the blower to the desired speed (and
regulate the volume of air delivery).The air conditioner system automatically regulates the blower speed
according to the interior temperature. However, you can also adjust the air
delivery manually. The current blower setting is illustrated by a bar in the
middle display (above the buttons).Automatic change of passenger temperatureIn order to automatically set the passenger temperature like the driver
temperature, press the button on the driver side for 2 seconds approx-
imately. In order to automatically set the driver temperature like the
passenger temperature, press the button on the passenger side for 2
seconds approximately.
OFF
OFF
-
OFF
OFFAUTO
+AUTO
-+
-
+AUTO
AUTO
ExeoST_EN.book Seite 168 Freitag, 3. September 2010 11:41 11
Page 171 of 325

Air conditioning169
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Air outletsThe air outlets ⇒fig. 143 and can be operated as follows:
Outlets and
– The outlets can be opened and closed by turning the left thum- bwheels.
– The direction of air delivery from the outlets can be varied as re quire d using the adjuster in the ce n tre o f ea ch o u t let g rille. The
direction of air flow can be adjusted horizontally and vertically as
desired.The flow of air from the outlets is controlled either automatically or manually,
depending on the operating mode selected. All the outlets can provide air
that is either heated, unheated or cooled.
The heater outlets for the rear footwells are located under the front seats.
They are controlled together with outlets .
Note
The cool air provided by the air conditioner is mainly issued from outlets
and . To ensure adequate cooling, outlets and should therefore
never be closed completely.Air distribution
The automatically-programmed air distribution can be
altered manually.The buttons , and can be operated either separately or in combi-
nation. To return to automatically controlled air distribution, switch off the
selected functions separately or press the button
Fig. 143 Dash panel: Location of air outlets
A3
A4
A3
A4
A5
A3
A4
A3
A4
AUTO
ExeoST_EN.book Seite 169 Freitag, 3. September 2010 11:41 11
Page 172 of 325

Air conditioning
170Each of the three buttons has a specific function. The numbers relate to the
air outlets ⇒page 169, fig. 143.
Air directed to windows
This setting directs all the air to outlets 1 and 2. Unlike in setting , the
volume of air delivery remains the same.
Air to the driver/front passenger
All the air comes from outlets 3 and 4 in the dash panel and from the rear of
the centre console.
Air to the footwells
Most of the air emerges from outlets 5 and the outlets under the front seats.
Some of the air will also be issued from outlets 3 and 4.
Note
In all of the above air distribution settings, a small amount of air will still
come from the other outlets.Economical use of the air conditioner
Economical use of the air conditioner will help save fuel.Engine power is reduced and fuel consumption increases when the
air conditioner is in co oling mode. To ensure that the system is only
switched on when it is really necessary, please note the following
points:
– Select ECON mode if you wish to save fuel.
– S e le c t ECO N m o d e i f yo u d e ci d e t o o p e n t h e w i n d o w s o r su n r o o f * while driving. – If the vehicle has heated up after standing in the sun, open the
windows and doors for a short time to cool the vehicle.
For the sake of the environment
By saving fuel you also reduce the amount of pollutants emitted from your
vehicle.Key settings
When the ignition is switched on, the air conditioner settings
assigned to the key are selected automatically.The air conditioner settings selected are automatically stored and assigned
to the key in use. When the vehicle is started, the air conditioner automati-
cally selects the settings assigned to the key. Hence, every driver automati-
cally obtains his/her preferred settings without having to select them manu-
ally.
Note
Should another driver use the key and enter other settings, the previous
settings will be deleted.
<
ExeoST_EN.book Seite 170 Freitag, 3. September 2010 11:41 11
Page 173 of 325

Air conditioning171
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Solar-powered blower/sunroof*
If the vehicle is parked in sufficiently strong sunlight, the
blower will operate in solar-powered mode when the ignition
is switched off.After the ignition is switched off, the blower is supplied with electrical power
from the sunroof. Please ensure that outlets 3 and 4 are open ⇒page 169,
fig. 143 to ensure the best possible ventilation.
The blower only works when the sunroof is closed or tilted open at the rear.
If the air recirculation mode is on when you switch off the engine, the air
conditioner will automatically switch to fresh air ventilation.Auxiliary heater*Diesel vehicles are fitted with an auxiliary heater
2) to raise the temperature of
the interior as quickly as possible. At outdoor temperatures below +5 °C and
with the engine running, the auxiliary heater will switch on and off automati-
cally depending on the temperature of the coolant.
In order to save fuel, the auxiliary heater can be can be switched off by briefly
pressing the button on the air conditioner.
Seat heating*
The surface and backrest of the front seats can be electrically
heated.Turn thumbwheel or ⇒fig. 144 to switch on and adjust the
heating on the left or right front seats.The heating is switched off when the thumbwheel is set to 0. The temperature
settings range from 1 to 6.
Caution
To avoid damaging the heating elements of the seat heating, please do not
kneel on the seat or apply sharp pressure to a single point.
2)For Nordic countries only.
% # / .
Fig. 144 Detailed view of
the dash panel: Thum-
bwheel controls for seat
heating
A1
A2
ExeoST_EN.book Seite 171 Freitag, 3. September 2010 11:41 11