2008 Citroen C6 DAG Owner's Manual

84
III
A U T O M A T I C A I R C O N D I T I O N I N G
AIR CONDITIONING
This system automatically adjusts the temperature, the fl ow of air and the distribution of air inside the cabin, depending on your desired comfort level.
Provided you retain automatic mode (by pressing button "AUTO") and all the air vents are open, you will main-tain an optimum comfort level, also removing humidity and misting, whatever the ambient climatic conditions.
The temperature inside the cabin cannot be lower than the temperature outside if the air conditioning is not operating.
To be effective, the air conditioning should only be used with the windows closed. If after a lengthy stop in bright sunlight the interior temperature is excessive, air the passenger compartment by opening the windows for a few moments, then close them again.
To keep the air conditioning compressor well sealed, it is essential to operate the air conditioning at least once in every month.
The air conditioning operates by using power from the engine. This results in a slight increase in fuel con-sumption.
Sensors
The automatic regulation of the air conditioning inside the cabin makes use of a number of sensors, relieving you of the need to make adjustments, other than the desired cabin temperature.
Take care not to obstruct sensor A.
Air inlet
Check that the exterior grille for the air inlet, at the bot-tom of the windscreen, is clean and free of dead leaves, snow, etc.
If washing the vehicle with a high pressure jet, avoid targeting the air inlet zone.
Air circulation
For your comfort we advise you to maintain a proper distribution of air within the cabin, both at the front and at the rear.
The air vents to the face have thumbwheels so that you can adjust the fl ow of air, and grilles to orient the direction.
There are air vents on the fl oor underneath the front seats and on the rear control panel, for enhanced heat-ing of the rear seat positions.
Do not obstruct the air outlets located in the boot area.
Dust/pollen fi lter
There is a fi lter for excluding pollen and dust.
This fi lter has to be changed according to the vehicle maintenance schedule. See "Maintenance Guide".

85
III
1
2a2b1
3a3b4
765
A U T O M A T I C A I R C O N D I T I O N I N G
The system has a differentiated adjustment for the driver's side and passenger's side, in terms of temperature and air distribution. The air fl ow is common to both sides.
Symbols and messages relating to the automatic air conditioning controls will display on the multifunction screen.
2. TEMPERATURE ADJUSTMENT
To adjust the temperature, press button 2a for the driv-er's side and button 2b for the passenger's side.
An adjustment around 21 will give you the optimum comfort level. However, depending on your preferences anywhere between 18 and 24 is quite usual.
Operating the air conditioning system on "AUTO" guar-antees good ventilation inside the cabin.Note: there may be a difference between the actual cabin temperature and the fi gure displayed.
This is the normal operating mode for the system. Depending on the temperature chosen, a press on this button, confi rmed by the lighting of the warning lamp, will automatically and simultaneously bring all the fol-lowing functions into play:Air fl ow.
Cabin temperature.
Air distribution.
Exterior air intake/Air recirculation.
It is recommended to keep all the air vents open. Just by pressing any of the buttons, except for temperature 2a and 2b, you can change to manual mode. the warn-ing lamp goes out. The warning lamp goes off, and the automatic air intake function is deactivated.

86
III
A U T O M A T I C A I R C O N D I T I O N I N G
Remarks:When starting from cold, in order to prevent unwanted cold air, the air fl ow will increase only gradually to its optimum level.
If you enter the vehicle after a fairly prolonged stop and the temperature inside the vehicle is far from comfortable, it serves no purpose to modify the temperature that is displayed as an attempt to go immediately to the desired comfort level. The system automatically uses all of its power to compensate the temperature gap as quickly as possible.
Remarks:Water arising from the condensation in the air conditioning drains out through a hole provided for this purpose ; a pool of water may thus form underneath the vehicle when stationary.
Whatever the time of year, even in cool weather the air conditioning is useful in removing humidity and misting.You are advised to have the air conditioning system checked on a regular basis. See "Maintenance Guide".
If you are towing a heavy trailer and outside temperatures are high, the air conditioning may be temporarily paused if the engine cooling requires this.

87
III
3a3b
4
A U T O M A T I C A I R C O N D I T I O N I N G
3. ADJUSTING THE AIR DISTRIBUTION
Successives or continuous presses on buttons 3a and 3b orient the fl ow of air on the driver's side or on the passenger's side.
The symbol (arrows) corresponding to the orientation chosen is displayed on the multifunction screen:Windscreen and side windows.
Central, lateral and soft diffusion air conditioning vents (if open).
Passenger footwells."AUTO" automatic distribution.

88
III
5
6
7
A U T O M A T I C A I R C O N D I T I O N I N G
5. FRONT DEMISTING - DEICING
Press button 5 for rapid clear windows. The warning lamp comes on. This system controls the air condi-tioning, the air fl ow and the entry of air from outside. It sends the ventilation towards the windscreen and side windows.
A press on the 1 button returns you to "AUTO" mode.
6. REAR DEMISTING - DEICING
Press button 6, with the engine running, to start a rapid deicing or demisting of the rear screen and rear view mirrors. The warning lamp comes on.
This mode stops automatically as a function of the out-side temperature. It can be paused by pressing again on button 6 or by stopping the engine.
In the latter case, demisting will resume when the engine is switched on again.Note: The heated rear screen operates independently of the automatic air conditioning.
7. AIR RECIRCULATION – ENTRY OF AIR FROM OUTSIDE
Press repeatedly on button 7 to select the air entry mode. The corresponding warning lamp lights up:Air intake in automatic pollution control mode (on by default, with automatic comfort regulation).
The automatic mode makes use of an air quality sen-sor. It analyses the air and isolates the cabin from the exterior if the presence of pollutants is detected. In this case it automatically activates recirculation of the cabin air.
Please note: this function does not detect and there-fore protect the cabin from unpleasant odours. It is not active when the ambient temperature is below + 5 °C so as to avoid the risk of misting the vehicle’s windows.
Closing the exterior air intake
Press button 7 to close the intake of air from the exte-rior.
While maintaining the other settings, this position allows the driver to avoid unpleasant odours and smoke out-side the vehicle at any time.
It should be cancelled as soon as possible to allow exchange of the cabin air and to avoid misting of the vehicle’s windows.
Exterior air intake
Press button 7 once to open the exterior air intake.

89
III
A U T O M A T I C A I R C O N D I T I O N I N G
To activate/deactivate the air conditioning system
Press on the control "CLIM" to go into the "air con-ditioning" mode. Then press button "OK" or on the control to bring up the "Air Conditioning menu" on the multifunction screen.
This menu allows you:To deactivate the air conditioning: "Cut aircon (A/C OFF)".Press button "OK", or on the control, to validate the offer to activate or deactivate the air conditioning.
The symbol "A/C OFF" displays on the multifunction screen in the case of deactivation.
Note:Your temperature adjustment value may not be reached and you risk having the windows misted up.You can cancel deactivation of the air conditioning, by pressing the control 1"AUTO".

90
III
A
B
C
D
Deactivation
A press on any of the buttons B, C or D, deactivates the automatic operation of the rear air condition-ing.
the warning lamp on button A goes out.
Remark: If the air conditioning in the front of the cabin is stopped (function deactivated in the "Air conditioning" menu or via the con-trol 4 for adjusting the air fl ow), then the rear automatic air condi-tioning is not available.
ADJUSTING THE AIR FLOW
If you press buttons B or D you increase or decrease the fl ow for the rear air conditioning.
The number of diode(s) lit up, composing the symbol for air fl ow (helix, situated between buttons Band D) expresses its power level.
To deactivate the air fl ow and air distribution for the rear air condi-tioning, press successively on but-ton D so that all the diodes go out.
DISTRIBUTION TO FOOTWELLS/HEADS
Successive presses on button Cwill modify the distribution of the air fl ow.
Three directions are available:Passengers' heads.
Passenger footwells.Passengers' heads and footwells.
The arrow lit up indicates the dis-tribution of air chosen manually. In "AUTO" mode, no arrow lights up.
ADJUSTMENT OF THE FLOW OF AIR INTO THE STORAGE UNDER THE FRONT CENTRAL ARMREST
If you choose a maximum fl ow of air in the rear by pressing Band distribution towards passen-ger's heads by pressing C, having closed the rear air vents, you will obtain a maximum fl ow of air into the storage beneath the armrest.

91
III
The programmable heating sys-tem operates independently of the engine.
With the engine off, it is used to preheat the engine cooling system so as to have an optimum engine operating temperature on starting.
The programmable heating sys-tem is started using a long-range remote control. It can be started immediately or programmed to start later.
In the event of a malfunction of the programmable heating sys-tem, contact a CITROËN dealer.the programmable heating sys-programmable heating
Remote control
The remote control for the program-mable heating system includes the following buttons and display infor-mation:1. Menu function scroll buttons.2. Function symbols: clock, temperature, operating duration, programmed time, heater operation, heater control.3. Digital display of: time, temperature, operating duration, programmed time or heating level.4. Off button.5. On button.
Information displayed in the remote control screen
Display of functions
Press buttons 1 repeatedly to bring up the functions.
The fi rst press of the right or left button displays the time.
The left button then gives access to the programming time, then the heating level (C1 to C5).
The right button gives access to the cabin temperature, then the operating duration of the heater where the system is to be started immediately.
Information on the cabin tem-perature is only available with the engine off.
P R O G R A M M A B L E H E A T I N G