check engine CITROEN C6 2012 Handbook (in English)

120
IV
A
This operation should only be
performed while the vehicle
is stationary.
To release the bonnet, pull thecontrol located under the dash-
board towards you.Li
ft the lever Alocated under the bonnet close to the centre, then pull.
To close
Lower the bonnet carefully, then let it drop shut.
When the engine is hot, handle the leverArwith care(risk of burns).
Check that the bonnet is properly secured.
OPENING THE BONNET

121
IVA
B
C
D
LEVELS
Air fi lter
Follow the requirements set out in the Maintenance and Warranty Guide.
REFER TO THE CHAPTER: USER PRECAUTIONS.
Screen wash and
headlamp wash fl uid
Use CITROËN-approved products wherever possible.
Capacity: See "Capacity".
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.
Qualit
y: See "Maintenance and
Warranty 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 the engine with an assisting battery".
Engine oil
Check the engine oil level
on horizontal ground withthe engine having beenswitched off for at least30 minutes.
It is normal to top up the engine oilbetween two services. The manu-
facturer recommends that the oil bechecked and topped up if necessaryevery 3 000 miles (5 000 Km).
Qualit
y:See "Maintenance and
Warranty Guide".
Pull out the manual dip-
stick.
Th
e 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.andMAX. on the reservoir.
Quality: See "Maintenance and
Warranty Guide".
If this warning lamp comes on
when driving, stop as soon as it is safe to do so and contact a CITROËN dealer or a qualifi ed
workshop.
Power steering and
suspension oil
For topping up, it is neces-sary to go to a CITROËN pp g p,
dealer or a qualifi ed workshop.
Quality: See "Maintenance and
Warranty Guide".
If opening the bonnet when the engine is hot, even if it is stopped and the ignition is switched off, remember thatthe 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 longjourney.
•
•

123
IVDB
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 andWarranty Guide".
LEVELS
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 tempe-
rature to be lower than 100 °C and
then carefully unscrew the cap so as
to allow the pressure to drop, pro-
tectin
g yourself with, for example, a cloth.
Topping up the coolant
The level of coolant1 should bebetween theMIN. andMAX. mark-ings on the header tank.
Top up the level. If more than 1 litre
is added, have the cooling systemchecked by a CITROËN dealer or ,gy
a qualifi ed workshop.
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.
Note:The cooling fan may oper-ate for around 10 minutes after theengine has stopped.
Quality:See "Maintenance and
Warranty 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.

126
IV
BC
A
i
12 V BATTERY
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 orderindicated in rthe 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 sequencecorrectly.
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 highly corrosive.
When handling batteries, always protect your face and especially your eyes.
In the event of any contact with the skin, rinse immediately 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.

144
V
TOWING WITH WHEELS ON THE GROUND
Towing eyes can be used at the front and at the rear of the vehicle.
Detach the cover:For the front cover, lever with a screwdriver at the top of the cover.
For the rear cover, press on the right hand side.
The ignition key must be in position M to retain steering.
Use a bar with attachments to the towing eyes as above.
The towing eye is removable, to be stowed in the jack protection box inside
the spare wheel.
•
•
ADVICE
Towingat low speed over a veryshort distanceis authorised inexceptional cases depending on
the regulations in force.
Otherwise, it is necessary to
have
your vehicle transportedon a recovery truck.
It is essential to check that theelectric parking brake is released.
REQUIREMENT - TOWING
WITH AUTOMATIC GEARBOX
Place the selector on position N(neutral).
When the engine is not running, the steering and the braking are no longer assisted.
If you are towing another vehicle, the latter must be free-wheeling (gearbox in neutral).
Towing with "front or rear lifted"or in the "minimum height"position is prohibited.

7.39
SOLUTION RESPONSE

The environment (hills, buildings, tunnels, basement car parks...) blockreception, including in RDS mode.

The aerial is absent or has been damaged (for example when going through a car wash or into an underground car park).
This phenomenon is normal and does notindicate a failure of the audio equipment.

Have the aerial checked by a CITROËN dealer.
Sound cut-outs of 1 to 2 seconds in radio mode.

During this brief sound cut-out, the RDS searches for any frequency permitting better reception of the station.
Deactivate the RDS function if the phenomenon is too frequent and always on the same route.

With the engine off,the audio equipment switches off after a fewminutes of use.

When the engine is switched off, the audio equipment operating timedepends on the battery charge.

The switch-off is normal: the audio equipment switches to economy mode and switches off to prevent discharging of the vehicle's battery.
The stored stations do not function(no sound, 87.5 Mhz isdisplayed...)
.
An incorrect waveband is selected.
Press the BAND AST button to return to the waveband (AM, FM1, FM2, FMAST) on which the stations are stored.

Start the vehicle's engine to increase the battery charge.

The quality of reception of the radio station listened to gradually deteriorates or thestored stations do not function(no sound, 87.5 Mhz isdisplayed...).

The vehicle is too far from the transmitter used by the station listened to or there is no transmitter in the geographical area through which the vehicle is travelling.
Activate the RDS function to enable the system to check whether there is a more powerfultransmitter in the geographical area.

7.58
QUESTION SOLUTION ANSWER
The stored stations donot function (no sound,87.5 Mhz is displayed...)

An incorrect waveband is selected.
Press the BAND AST button to return to the waveband (AM, FM1, FM2, FMAST) on which thestations are stored.

The traffi c announcement (TA) is displayed. I do not receive any traffi c information.

Tune to a radio station which broadcasts traffi cinformation. The radio station is not part of the regional traffi c information network.
The quality of receptionof the radio stationlistened to graduallydeteriorates or the stored stations donot function (no sound, 87.5 Mhz isdisplayed...).
The vehicle is too far from the transmitter used by the station listened to or there is no transmitter in the geographical area through which the vehicleis travelling.
The environment (hills, buildings, tunnels, basement car parks...) block reception, including in RDS mode.
The aerial is absent or has been damaged (for example when goingthrough a car wash or into an underground car park).

Activate the RDS function to enable the systemto check whether there is a more powerful transmitter in the geographical area.
This phenomenon is normal and does notindicate a failure of the audio equipment.

Have the aerial checked by a CITROÀN dealer.
Sound cut-outs of 1to 2 seconds in radio mode.
During this brief sound cut-out, the RDS searches for any frequencypermitting better reception of the station.
Deactivate the RDS function if the phenomenonis too frequent and always on the same route.
With the engine off, the audio equipmentswitches off after a few minutes of use.
When the engine is switched off, the audio equipment operating time depends on the battery charge.The switch-off is normal: the audio equipment switches to economy modeand switches off to prevent discharging of the vehicle's battery.
Start the vehicle's engine to increase the batterycharge.
The message "the audiosystem is overheated"appears on the display.

Switch the audio system off for a few minutes to allow the system to cool.In order to protect the installation if the surrounding temperature is too high,the audio equipment switches to an automatic thermal protection modeleading to a reduction of the volume or stopping of the playing of the CD.

149
INDEX
12 V battery ............124 → 126 - XIV
A
ABS system..................................74
Access.................................82 → 84
Access to the boot .................84 - 99
Adjusting the front seats........58 - 59
Adjustment of rear seats....97 → 100
Adjustment of the rear view mirrors.................................63 - 64
Advice on driving ............................X
Air conditioning............ 42 - 85 → 92
Air distribution........................89 - 92
Air fi lter.......................................r121
Air fl ow ...................................89 - 92
Air recirculation ñEntry of air from outside.............90
Airbags ........................101 - V → VII
Anti-intrusion alarm................26 - 27
Anti-pinch.............................56 - 118
Anti-theft bolts....................141 - 143
Anti-theft protection......................82
Ashtray........................................11 4
Audio system/NaviDrive ................43, 7.01 - 7.57
Automatic gearbox...............65 → 68
Automatic lighting of headlamps...51
B
Badge reader...............................r11 6
Battery replacement ...................124
Bonnet........................................120
Boot ..............................84 - 99 - 117
Brake fl uid...................................121
B
Brakes.......................................... 74
Braking system ............................XIII
Brightness sensor.........................r37
C
Capacities ................................... 132
Card-holder..................................11 6
Catalytic converter......................rXVII
CD changer.................................r117
Central locking.......................23 - 25
Central unlocking..........................23
Changing a wheel............141 → 143
Changing the remotecontrol battery............................24
Changing bulbs................134 → 138
Changing the vehicle battery......124
Checks........................................ 121
Child restraints.................103 → 105
Child safety ..........................56 - 83 -

103 → 105 - VIII → IX
Child seats.....103 → 105 - VIII → IX
Cigar-lighter.................................r113
Cold weather shield....................140
Colour screen C..................39 → 42
Controls at the steering wheel........8
Coolant temperature.....................46
Cruise control ........................69 - 70
Cup-holders .................................111
D
Dashboard.................................8 - 9
Date ................................39 - 41 - 43
D
Daytime-running lamps.................52
Deactivation of passenger’s airbag.......................................101
Deadlocking...........................23 - 25
Diesel particulate fi lter system ......81
Diesel preheating..........................29
Dimensions........................146 - 147
Dipped beams ..............................51
Direction indicators .......................50
Driverís fl oor mat.........................113
Driverís oddments tray ................ 111
Driverís seat beltfastening sensor...r61
Driving.................................18 → 20
Driving position............................... II
Driving positions....................37 - 60
Dust/pollen fi lter............................r86
E
Eco-driving............................... 21-22
Economy mode.............................28
Ejecting the key............................24
Electric exterior rear viewmirrors.................................63 - 64
Electric parking brake ............75 - 76
Electric steering column adjustment..................................57
Electric windows control...............56
Electrical accessories ................XVIII
Electronic immobiliser...................25
Electronic stability programme(ESP)..........................................73
Engine coolant ............ 46 - 121 - 123