2007.5 Citroen C5 check engine

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IN BRIEF
D R I V I N G
Electric parking brake
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Never leave a child alone inside the vehicle with the ignition on, as they could release the parking brake.
Hill start assist
Manual operation
The MANUAL application/release of the parking brake is possible permanently by pulling/pushing control B.
Before leaving the vehicle, check that warning lamp A (!) (red) on the instru-ment panel is permanently lit and that warning lamp P (red) on con-trol B is lit.
With the engine running, if you leave the vehicle, manually apply the park-ing brake.
Do not leave the vehicle while it is being held in the temporary immobilisation hill start assist phase.
To aid starting on a gradient, your vehicle is equipped with a system which keeps it immobilised for a short time (about 2 seconds), the approximate time it takes to move your foot from the brake pedal to the accelerator pedal.
This function is only active when:The vehicle is completely sta-tionary, with your foot on the brake pedal.
In particular conditions on a slope.With the driver's door closed.

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I N S T R U M E N T P A N E L
Engine oil temperature gauge
Under normal operating condi-tions, the bars should be within section 1.
In severe operating conditions, the bars may extend into section 2.
In this event, slow down, and if nec-essary, stop the engine and check the levels (see chapter - Mainte-nance - “Levels”).
Fuel gauge
On horizontal ground, the lighting of the fuel low warning lamp warns you that you are using the reserve tank.
A message alert is displayed on the instrument panel.
Coolant temperature indica-tor
Under normal operating condi-tions, the bars should be within section 1.
In severe operating conditions, the bars may extend into section 2, the engine coolant temperature warn-ing lamp A and the STOP warning lamp will light up, stop immedi-ately.Switch off the ignition. The cooling fan may continue to operate for a certain time. Allow the engine to cool down while tak-ing the precautions indicated in chapter - Maintenace - “Levels”.
Contact a CITROËN dealer.
If the SERVICE warning lamp lights up, check the levels (see chapter - Maintenance - “Levels”).

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STOP warning lamp
When the warn-ing lamp comes on, you must stop the vehicle and switch off the engine. Contact a CITROËN dealer.switch off the engineswitch off
Parking brake
The permanent lighting of this warning lamp confi rms that the parking brake is applied.
If this warning lamp fl ashes, it indi-cates a fault with its application or release. Consult a CITROËN cates a fault with its application application
dealer as soon as possible.
See “Brakes”.
With the engine running, and when displayed at the same time as the STOP warning lamp, it indi-cates that the brake fl uid level is too low.
If this warning lamp comes on, stop immediately and contact a CITROËN dealer.stop immediately and immediately
See “Brakes”.
Battery charge
This warning lamp comes on temporarily when the engine is switched on. If it remains on permanently, contact a CITROËN dealer.remains on permanens on
In the event of a battery failure, the application of the electronic parking brake when the engine is switched off is not guaranteed. You must therefore apply the parking brake before switching off the engine.
I N S T R U M E N T P A N E L
W A R N I N G L A M P S
SERVICE
This warning lamp remains on perma-nently, as long as the fault displayed on the instru-ment panel screen is present (for serious faults).
Consult a CITROËN dealer as soon as possible.
This warning lamp remains on only for a short time for faults that are minor.
Contact a CITROËN dealer.
ESP/ASR
Operating
If either of the ESP or ASR systems is active, the warning lamp fl ashes.
For a malfunction
With the engine running, the light-ing of this warning lamp along with a message on the instrument panel screen, the lighting of the SERV-ICE warning lamp and a sound signal, indicates a system fault.
Contact a CITROËN dealer.
Deactivation
The lighting of this warning lamp and the light on the ESP deactiva-tion button confi rms that the sys-tem is deactivated.
See “Dynamic stability control” (ESP).
Coolant temperature
It comes on for a few sec-onds each time you switch on the ignition.
If this warning lamp comes on, engine running, it tells you that the coolant temperature is rising abnormally.
This warning lamp is linked with the STOP warning lamp.
It is essential to stop the vehi-cle.
Check the coolant level.
If the level is too low, contact a CITROËN dealer.If the level is too

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I N S T R U M E N T P A N E L
C H E C K S / O I L L E V E L
Engine oil level indicator
When you switch the ignition on, the engine oil check is displayed for a few seconds on the instrument panel screen.Note: to ensure that this measurement is accurate, check the oil level o n horizontal ground after the engine has been switched off for at least 15 min-utes. An incorrect engine oil level can seriously damage your engi ne.
“Oil level incorrect” indicates that the oil level is too low.
Check using the manual dipstick. See “Lev-els”.
If, after topping up, the message re-appears, contact a CITROËN dealer.If, after topping up, the message topping up, the
“Oil level invalid” indicates a malfunctioning of the indicator.
Contact a CITROËN dealer.
“Oil level correct” indicates normal operating.
Log of alerts
This function allows you to display the log of alerts.
Press on button A. The following messages appear consecutively on the instrument panel screen:Tyre pressure check.
Maintenance indicator reminder.Display of message alerts.
Oil level check.

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Unlocking in emergency
In the event of the electronic park-ing brake malfunctioning or the battery running fl at, an emer-gency manual device can unlock the electronic parking brake.1. Immobilise the vehicle, with the engine running, by engaging fi rst gear (manual gearbox) or position P (automatic gearbox), then switch off the engine.Note: If it is impossible to immobi-lise the vehicle, do not action the unlocking control and urgently con-tact a CITROËN dealerunlocking control and urgently control .
E L E C T R I C P A R K I N G B R A K E
U N L O C K I N G I N E M E R G E N C Y
9. Make sure that you position the strap back in its location C. If not, the application of the park-ing brake will not be possible. Contact a CITROËN dealer.ing brake will not be possible. will not be
10. Refi t the rubber mat at the base of the armrest.11. Remove and store the block.
This strap cannot apply the parking brake. To re-engage the electronic parking brake (after resolution of the malfunction or the fl at battery), make a long pull on the control lever A until the parking brake warning lamp (!) fl ashes on the instrument panel then make a second long pull until this warning lamp remains lit permanently. The time for applying the brake subsequent to the emergency unlocking will be longer.
2. Fetch the vehicle block located in the boot.3. Immobilise the vehicle by placing the block in front of or behind one of the rear wheels.4. Open the lower compartment of the central armrest by pulling upwards.5. Ensure that the cup-holder B is Bfolded back.6. Remove the rubber mat covering the base of the armrest.7. Disengage the strap from its loca-tion C.8. Pull the strap to unlock the brake. A loud click confi rms that the brake is unlocked.
Note: It is necessary to check that the parking brake warning lamp lights up on the instrument panel when the parking brake is applied.
Remark: Diagnostic socket in the armrest strengthener. Ensure that you do not allow any dusty or damp elements near the diagnos-tic socket D which is essential for the maintenance of your vehicle.

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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, contact a CITROËN dealer.
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
If either of the ESP or ASR systems is active, the warning lamp 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 control A, the warning lamp and the light on control A light up. The ESP/ASR systems are no longer active.
The ERSP/ASR systems will activate again:Automatically after the ignition has been switched off.
Automatically when you drive at above approx. 50 km/h (approx. 30 mph).
Manually with another press on button A.
Operational anomaly
If there is a system fault, the warning lamp lights up, accompa nied by a message on the instrument panel screen, the lighting of the SERVICEwarning lamp and a beep.
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
G E N E R A L
You are advised to use the automatic air conditioning regulation. This automatically regulates the following functions for maximum comfort : air fl ow, passenger compartment temperature, and air distribution, using different sensors (external temperature, sunlight). This avoids the need to alter any of the settings, with the exception of the temperature displayed.
Take care not to obstruct the sunlight sensor A.
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 ensure the correct operation of the air conditioning system, it is essential to operate the air conditioning at least once a month.
The air conditioning operates by using power from the engine. This results in a slight increase in fuel con-sumption.
In certain extreme operating conditions (e.g. carrying a full load up a steep gradient in high temperatures), the switching off of the air conditioning allows more power to be transferred to the engine, thereby increasing the towing capacity.
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.
To obtain an even distribution of air, ensure that you do obstruct the external air inlet grille located at the base of the windscreen, the air vents, the air outlets on the fl oor underneath the front seats, and the air extractor located behind the fl aps in the boot.
The front and rear air vents are fi tted with control knobs which allow you to control and direct the air fl ow. It is recommended to keep all the air vents open.
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”.

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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
Traffi c Announcements (TA) is displayed. I do not receive any traffi c informa-tion or public announce-ments.
The particular radio station is not in the regional traffi c information network.Change to a radio station that does broadcast traffi c information.
The reception quality of the radio station being lis-tened to gradually deterio-rates.
The vehicle is too distant from the transmit-ter, or no transmitter is present in the geo-graphical area you are passing through.
Activate the RDS function to allow the system to check whether a more pow-erful transmitter is to be found in the geographical area.
The environment (hills, high buildings, tun-nels, underground 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.
Cutting of sound for 1 to 2 seconds in radio mode.
The RDS system during this brief sound cut-off is searching for a better frequency that might offer improved reception of the station.
Deactivate the RDS function if the phe-nomenon occurs 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 work-ing time for the radio depends on the battery charge. The interruption is normal: the radio goes into economy mode, cutting off 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.