2012 CITROEN C6 check engine light

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1
43
HEAD-UP DISPLAY
The Head-up display projectsessential driving datainto thedriver's fi eld of vision. This enablesthe driver never to take his eyesoff the road.
ACTIVATION/DEACTIVATION
To activate/deactivate the Head-up
display: when you switch on the
ignition, press on button 1.
The function status (activated/deac-
tivated) when you stop the engine is
retained when you restart.
ADJUSTMENTS
OF THE HEAD-UP DISPLAY
Hei
ght adjustment
To a djust the height for the Head-up display, press on buttons 2 and3.
It is recommended to adjust it as low as possible.
Brightness adjustment
The Head-up display has a bri-ghtness sensor so that the infor-
mation can be seen to the best
advantage, whatever the ambient
brightness.
You can enhance the display bri-
ghtness at any time by rotating the control 1.
Note:In certain extreme weather
conditions (rain and/or snow,strong sunlight), the Head-up display may be momentarily subject to interference.
When emerging
from a tunnel, there is a certain delay beforethe system can re-adapt thedisplay brightness to the outside conditions.
Note:
Certain types of spectaclesmay disperse the light coming from
the Head-up display.
There is memorisation of driving positions as well
as those for the Head-updisplay
The adjustments you have madefor the Head-up display are adop-
ted alongside the driving positionmemorisations (see "Memorisation").They are:Height adjustment.
Brightness.
The types of information selected.
•
•


If the Head-up display cannot beseen, it is recommended to adjustit for height (buttons 2 and 3) and tocheck that it is activated (button1).
The controls for the Head-up dis-play are located beneath the air
vent on the driver's side.

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II
ELECTRONIC STABILITY PROGRAMME
TheESP system offers increased
driving safety but is not in place toencourage the driver to take addi-
tional risks or to drive at excessivespeeds.
The operation of this s
ystem is
assured provided that the manufac-
turer’s recommendations concern-
ing the wheels (tyres and rims),
braking components and electricalcomponents are observed, as wellas the fi tting and repair proceduresused by CITROËN dealers andgpp
qualifi ed workshops.
Following an accident, have thesystem checked by a CITROËNg,
dealer or a qualifi ed workshop.
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, theESPsystem acts
automatically on one or more wheels and also on the engine to bring the
vehicle back on trajectory. The ASRsystem 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 ESPor the ASR system is brought into operation
the warning lamp "ESP/ASR" fl ashes.
DEACTIVATION
In exceptional conditions (vehicle stuck in snow, soft ground, etc.) it mayprove useful to deactivate theESP/ASR systems to allow the wheels tospin and thus regain traction.
Press on buttonA, the"ESP/ASR" warning lamp, as well as the lamp on
the buttonA, light up. TheESP/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. 30 mph (50 km/h).
Manuallywith another press on button A.
OPERATIONAL ANOMALY
Should there be a system malfunction, the "ESP/ASR"warning lamp willlight up.
Contact a CITROËN dealer or a qualifi ed workshop to have the systemchecked.

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III
AUTOMATIC AIR CONDITIONING
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 e
ffective, 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 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 andat 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.
Th
ere are air vents on the fl oor underneath the frontseats and on the rear control panel, for enhancedheating 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 and WarrantyGuide".

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.

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