2007 Citroen C6 Owner's Manual

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This operation should only be performed while the vehi-cle is stationary.
To unlock the bonnet, open the front LH door then pull the con-trol, located under the dashboard, towards you.
Lift the lever A located under the bonnet close to the centre, then pull.
To close
Lower the bonnet carefully, then let it drop shut.
Check that the bonnet is properly secured.
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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 min-utes.
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 min-utes.
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 reser-voir.
Quality: See “Maintenance Guide”.
If the warning lamp comes on while you are driving, stop imme-diately and contact a CITROËN while you are driving, stop imme-stop imme-
dealer.
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 Ifstopped 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.

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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 temper-ature 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 cool-ing system checked by a CITROËN in more than 1 litre, have the cool-the cool-
dealer.
Make sure that the cap is back on properly.Note: If you need to top up the fl uid frequently, this indicates a malfunc-tion which you should get checked at the earliest opportunity.
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.

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V 6 E N G I N E

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2 . 2 H Di 1 6 V E N G I N E
HDi engines are the result of advanced technology.
Any intervention requires special qualifi cations which only a CITROËN dealer can guarantee.Any intervention requires special qualifi cations which only a Any intervention requires special qualifi cations which only a
The diesel fuel circuit being under high pressure:
ANY INTERVENTION ON THE CIRCUIT IS PROHIBITED.

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V 6 H Di E N G I N E
HDi engines are the result of advanced technology.
Any intervention requires special qualifi cations which only a CITROËN dealer can guarantee.Any intervention requires special qualifi cations which only a Any intervention requires special qualifi cations which only a
The diesel fuel circuit being under high pressure:
ANY INTERVENTION ON THE CIRCUIT IS PROHIBITED.

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BATTERY LOCATION AND ACCESS
The battery is located in the boot under the left hand wing trim. To access the battery, rotate the pin on the fl ap by a 1/4.
CHANGING THE BATTERY (Contact a CITROËN dealer).1. Release the two pins on each side at the back of the boot, and remove the boot fl oor.2. On each side trim, release the two fi xing pins A.3. Undo the two screws B on each side and remove the sill embellisher.4. On the side trim close to the battery, release the pin D.5. Separate the side trim close to the battery, pulling hard to free the other fi xing points.6. unclip the boot lamp C.7. Disconnect both battery terminals.8. Release the battery from its support.9. Remove the battery.
Before changing or repairing the battery, open all four windows.
If you have to unlock your vehicle with the key because of a problem with the battery, any opening/closing of a door with the window closed may seriously damage the glass to the point of breaking it.
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STARTING THE ENGINE AFTER DISCONNECTING AND RECONNECTING THE BATTERY1. Turn the ignition key.2. Wait approximately 1 minute before operating the starter in order to allow the electronic systems to re-initialise.
After the battery has been disconnected for a lengthy period o f time, it may be necessary to re-initialise the following functions:The anti-pinch on the windows.
The anti-pinch on the sun roof.
The multifunction display parameters (date, time, language, units of distance and of temperature).The Radio stations.
The NaviDrive. See NaviDrive instructions.
IMPORTANT
In the event of a battery failure, and if the boot is closed, it is then necessary to feed an electrical supply to your vehicle. See following page.