check engine Citroen C6 2008 1.G Owner's Manual

27
II
DO NOT RUN THE ENGINE IN A CLOSED SPACE OR IN ONE THAT IS INSUFFICIENTLY VENTILATED.
PETROL
Starting the engine
Do not touch the accelerator.
Turn the key to the drive position.
Action the starter until the engine starts up (not more than 10 seconds).
If the engine does not start at the fi rst attempt, switch off the ignition. Wait 10 seconds, then action the starter again as above.
DIESEL
Starting the engine
Turn the key to the drive position.
Wait for the preheater warning lamp to go out, if it is on, then action the starter until the engine starts (not more than 10 seconds).
If the engine does not start, switch off the ignition.
Recommence the operation.Note: During starting, do not touch the accelerator.
ADVICE
Diesel vehicle with turbochargers
Never stop the engine without fi rst having allowed it to idle for a few seconds, this being the time required for the turbochargers to return to a normal speed.
Do not "fl ick" the accelerator at the moment you switch off the ignition as this could seriously damage the turbochargers.
Check that the automatic gear selector is in position P or N.
D R I V I N G – S T A R T I N G T H E E N G I N E

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".

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.

132
IV
F R E Q U E N T L Y - A S K E D Q U E S T I O N S
QUESTIONANSWERSOLUTION
Tr a f f i c A n n o u n c e m e n t s ( TA ) i s d i s p l aye d. I d o n o t r e c e i ve any traf fi c information or public announcements.
The particular radio station is not in the regional t raffi c information network.Change to a radio station that does broadcast traffi c information.
The reception quality of the radio station being listened to gradually deteriorates.
The vehicle is too distant from the transmitter, or no transmitter is present in the geographical area you a re passing through.
Activate the RDS function to allow the system to check whether a more power ful transmitter is to be found in the geographical area.
The environment (hills, high buildings, tunnels, under-ground car parks, etc.) is blocking reception, even in RDS mode.
This phenomenon is normal and does not imply anything wrong with the radio.
The aerial is absent or has been damaged (for example after going through a car wash or in an underground car park).Have the aerial checked by a CITROËN dealer.
When the engine is not running, the radio stops after a few minutes.
When the engine is switched off, the working time for the radio depends on the battery charge. The interruption is normal.: the radio goes into economy mode, cutting of f in order to save the vehicle’s battery.
You have to start the engine so as to increase the battery charge.
The message "the audio system is overheating" appears on the screen.
In order to protect the audio equipment in excessive ambient temperatures, the radio goes into an automatic thermic protection mode which results in a reduction in sound volume or stopping of the CD player.
Switch off the audio system for a few minutes in order to allow the system to cool down.

134
VA
B
C
D
L E V E L S
Air fi lter
Follow the requirements set out in the Maintenance Guide.
REFER TO THE CHAPTER: USER PRECAUTIONS.
Screen wash and headlamp wash fl uid
Use CITROËN-approved products wherever possible.
Capacity: See "Capacities".
Engine coolant
The fl uid level should be between the marks MIN. and MAX. on the header tank.
Engine hot, wait at least 15 minutes.
Quality: See "Maintenance Guide".
Never do anything relating to the cooling system of an engine that is hot.
Poles "+" and "-" for starting with a slave battery
See "Starting with a slave battery".
Engine oil
Check the engine oil level on horizontal ground with the engine having been switched off for at least 15 minutes.
Quality: See "Maintenance Guide".
Pull out the manual dip-stick.
The level should be between the marks MIN.and MAX. on the gauge.
It must never exceed the maximum.
MAX.
MIN.
Brake fl uid
The level of fl uid should be between the marks MIN.and MAX. on the reservoir.
Quality: See "Maintenance Guide".
If the warning lamp comes on while you are driving, stop immediately and contact a CITROËN dealer.immediately and immediately
Power steering and suspension oil
For topping up, it is neces-sary to go to a CITROËN For topping up, it is neces-neces-
dealer.
Quality: See "Maintenance Guide".
If opening the bonnet when the engine is hot, even if it is stopped and the ignition is switched off, remember that the cooling fan may operate at any moment.
Between routine servicing visits, check the level of engine oil frequently as well as before going on a long journey.

137
VDB
1
1
TOPPING UP ENGINE OIL
Before fi lling, pull out the dipstick.
Check the dipstick after fi lling.
It must never exceed the maxi-mum.
Screw the cap back on and close the bonnet.
Quality: See "Maintenance Guide".
L E V E L S
RADIATOR – COOLANT FLUID
Checking the level and topping up with fl uid must always be done with the engine cold.
Engine hot
Wait 15 minutes or for the tem-perature to be lower than 100 °C and then carefully unscrew the cap so as to allow the pressure to drop, protecting yourself with, say, a cloth.
Topping up the coolant
The level of coolant 1 should be between the MIN. and MAX. mark-ings on the header tank.
Top up the level. If you have to put in more than 1 litre, have the cooling system checked by a CITROËN dealer.cooling system checked cooling system
Make sure that the cap is back on properly.Note: If you need to top up the fl uid frequently, this indicates a malfunction which you should get checked at the earliest opportu-nity.
Remark: The cooling fan may operate for around 10 minutes after the engine has stopped.
Quality: See "Maintenance Guide".
If opening the bonnet when the engine is hot, even if it is stopped and the ignition is switched off, remember that the cooling fan may operate at any moment.

140
V
BC
A
1 2 V B A T T E R Y
STARTING THE ENGINE WITH AN ASSISTING BATTERY
If the battery is discharged, it is possible to use either a separate emergency battery or a battery on another vehicle.
If you use the battery on another vehicle, stop the engine on the latter. The two vehicles must not come into direct contact with each other.
Check that the assisting battery has suffi cient voltage (12 V).
Connect the cables according to the order indicated in orderthe diagram.
A Pole "+" on the vehicle being assisted (under the red cover).B Assisting battery.C Pole "–" on the assisted vehicle (under the bonnet).
Check that the leads are well secured (risk of sparks).
Start the engine of the assisting vehicle. Let the engine run for around 1 minute at a slightly accelerated idle.
Operate the starter on the vehicle being assisted.
It is essential to follow the indicated sequence correctly.
Never approach with a fl ame or create sparks in the vicinity of the battery (explosive gas).
The battery contains dilute sulphuric acid which is hig hly corrosive.
When handling batteries, always protect your face and es pecially your eyes.
In the event of any contact with the skin, rinse immediatel y with copious amounts of fresh water.
ADVICE
Do not touch the leads during the operation.
Do not lean over the batteries.
Disconnect the cables in reverse order, making sure they do not touch together.

565656
IX
F R E Q U E N T LY - A S K E D Q U E S T I O N S
QUESTIONSANSWERSSOLUTIONS
T he rec eption qualit y of the radio station being listened to gradually deteriorates.
The vehicle is too distant from the transmitter, or no transmitter is present in the geographical area you are passing th rough.
Activate the RDS function to allow the system to chec k whether a more power ful transmitter is to be found in the geographical area.
The environment (hills, high buildings, tunnels, underground car parks, etc.) is blocking reception, even in RDS mode.This phenomenon is normal and does not imply anythi ng wrong with the radio.
The aerial is absent or has been damaged (for example after going through a car wash or in an underground car park).Have the aerial checked by a CITROËN dealer.
Cutting of sound for 1 to 2 seconds in radio mode.
The RDS system during this brief sound cut- of f is s earching for a better frequency that might of fer improved reception of the station.
Deactivate the RDS function if the phenomenon occur s too frequently and always on the same journey.
When the engine is not running, the radio stops after a few minutes.
When the engine is switched off, the working time for the radio depends on the batter y charge. The interruption is nor mal: the radio goes into economy mode, cutting off in order to save the vehicle’s batter y.
You have to star t the engine so as to increase the bat-ter y charge.
The message “ the audio system is overheating” appears on the screen.
In order to protect the audio equipment in excessiv e ambient temperatures, the radio goes into an automatic thermic protection mode which results in a reduction in sound volume or stopping of the CD player.
Switch off the audio system for a few minutes in order to allow the system to cool down.
Why is one not informed in real time of a hold-up on the route even though the option for guidance by “traffi c info” is activated ?
When you star t up, the system takes a few minutes to c apture the traf fi c information via RDS-TMC.Wait for the traf fi c information to be safely received (pictogrammes displayed on the map) and make sure that you use the major ar terial roads to have “inform ed” navigation.
Only the major ar terial roads (motor ways and some d ual car-riageways) are featured in RDS-TMC traf fi c information).
It may happen that a hold-up is not repor ted by the tr af fi c info provider.
Why is a diversion not suggested when I have selected traf fi c info ?
Do not confuse the “traf fi c info” guidance option which can sug-gest a diversion (the “diver t” button appears in the w indow) with the menus “Display of traf fi c messages” or “Reading of traf fi c messages” which af fect only the display without recalculating the itinerar y (no “diver t” button in the window).
To have “informed” navigation with the detour proposi-tion, it is essential to activate the guidance option with “traf fi c info”.