check engine light Citroen C6 2007 1.G Owner's Manual

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E L E C T R O N I C S T A B I L I T Y P R O G R A M M E
The ESP system offers increased driving safety but is not in place to encourage the driver to take addi-tional risks or to drive at excessive speeds.
The functioning of this system is subject to compliance with the manufacturer’s recommendations on wheels (tyres and rims), brake parts and electronic components, as well as with the assembly and repair procedures approved by CITROËN.repair procedures repair procedures
After any collision, have this system checked by a CITROËN dealer.After any collision, have this system collision, have this
ELECTRONIC STABILITY PROGRAMME (ESP) AND TRACTION CONTROL (ASR)
These systems are closely associated with ABS and additional to it. In the event of a loss of control of the vehicle by the driver, the ESP system acts automatically on one or more wheels and also on the engine to bring the vehicle back on trajectory. The ASR system optimises traction and prevents wheel spin by acting on the brakes of the driving wheels as well as on the engine. It also improves steering stability during acceleration.
OPERATION
When either the ESP or the ASR system is brought into operation the warning lamp “ESP/ASR” fl ashes.
DEACTIVATION
In exceptional conditions (vehicle stuck in snow, soft ground, e tc.) it may prove useful to deactivate the ESP/ASR systems to allow the wheels to spin and thus regain traction.
Press on button A, the “ESP/ASR” warning lamp, as well as the lamp on the button A, light up. The ESP/ASR systems are no longer active.
The ESP/ASR systems will activate again:Automatically after the ignition has been switched off.
Automatically when you drive at above approx. 50 km/h (approx. 31 mph).Manually with another press on button A.
OPERATIONAL ANOMALY
Should there be a system malfunction, the “ESP/ASR” warning lamp will light up.
Contact a CITROËN dealer to have the system checked.

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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 uses a number of sensors (sunlight, ambient temperature, inside temperature, etc.) relieving you of the need to make your own adjustments within a normal temperature range.
The humidity sensor is there to prevent misting inside the vehicle.
Be careful not to obstruct the sensors A and C.
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 direc-tion.
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”.
Additional heating
Vehicles with an HDi engine may be provided with auto-matic additional heating for enhanced comfort.
It is normal to notice slight odours or smoke emissions, especially when the vehicle is idling or stationary.