2010.5 Citroen DS4 DAG check engine

147Fittings

230 V/50 Hz power socket
A 230 V/50 Hz socket (maximum power: 120 W) is fitted to the centre console. To use the socket :  lift the front armrest cover for access to its compar tment,  check that the warning lamp is on green,  connect your multimedia or other electrical
device (telephone charger, laptop computer, CD-DVD player, baby food warmer...). This socket works with the engine running, as well as in STOP mode on Stop & Star t.
In the event of a fault with the socket, the green warning lamp flashes. Have it checked by a CITROËN dealer or a qualified workshop.
Connect only one device at a time to the socket (no extension or multi-way connector).
Connect only devices with class II insulation (shown on the device). As a safety measure, when electrical
consumption is high and when required by the vehicle's electrical system (par ticular weather conditions, electrical overload...), the current supply to the socket will be cut off; the green warning lamp goes off.
12 V accessory
socket
 To connect a 12 V accessory (max power: 120 W), lift the cover and connect a suitable adaptor.

147Fittings

230 V/50 Hz power socket
A 230 V/50 Hz socket (maximum power: 120 W) is fitted to the centre console. To use the socket :  lift the front armrest cover for access to its compar tment,  check that the warning lamp is on green,  connect your multimedia or other electrical
device (telephone charger, laptop computer, CD-DVD player, baby food warmer...). This socket works with the engine running, as well as in STOP mode on Stop & Star t.
In the event of a fault with the socket, the green warning lamp flashes. Have it checked by a CITROËN dealer or a qualified workshop.
Connect only one device at a time to the socket (no extension or multi-way connector).
Connect only devices with class II insulation (shown on the device). As a safety measure, when electrical
consumption is high and when required by the vehicle's electrical system (par ticular weather conditions, electrical overload...), the current supply to the socket will be cut off; the green warning lamp goes off.
12 V accessory
socket
 To connect a 12 V accessory (max power: 120 W), lift the cover and connect a suitable adaptor.

175Safety
Emergency braking assistance
System which, in an emergency, enables you to obtain the optimum braking pressure more quickly, thus reducing the stopping distance.
Activation
It is triggered by the speed at which the brake pedal is pressed. The effect of this is a reduction in the resistance of the pedal and an increase in braking efficiency.
When braking in an emergency, press firmly without releasing the pressure.
Trajectory control systems
Anti-skid regulation (ASR)
and electronic stability
programme (ESP)
The anti-skid regulation (also known as Traction Control) optimises traction to prevent skidding of the wheels, by acting on the brakes of the driving wheels and on the engine. The electronic stability programme acts on the brake of one or more wheels and on the engine to keep the vehicle on the trajectory required by the driver, within the limits of the laws of physics.
Activation
These systems are activated automatically each time the vehicle is star ted. They come into operation in the event of a grip or trajectory problem.
This is indicated by flashing of this warning lamp in the instrument panel.
Snow driving assistance
(Intelligent Traction Control)
Your vehicle has a system to help driving on snow: Intelligent Traction Control. This automatic system continuously checks for situations of difficult sur face adhesion that could make it difficult to move off or make progress on deep fresh snow or compacted snow. In these situations, Intelligent Traction Control takes over from the ASR system, limiting the amount of wheel slip to provide the best traction and trajectory control, even
without snow tyres and with or without chains. In extremely severe conditions (snow on top of ice, sand, deep mud…), it can be useful to
deactivate the ESP/ASR systems to allow a degree of wheel spin and so recover grip.

175Safety
Emergency braking assistance
System which, in an emergency, enables you to obtain the optimum braking pressure more quickly, thus reducing the stopping distance.
Activation
It is triggered by the speed at which the brake pedal is pressed. The effect of this is a reduction in the resistance of the pedal and an increase in braking efficiency.
When braking in an emergency, press firmly without releasing the pressure.
Trajectory control systems
Anti-skid regulation (ASR)
and electronic stability
programme (ESP)
The anti-skid regulation (also known as Traction Control) optimises traction to prevent skidding of the wheels, by acting on the brakes of the driving wheels and on the engine. The electronic stability programme acts on the brake of one or more wheels and on the engine to keep the vehicle on the trajectory required by the driver, within the limits of the laws of physics.
Activation
These systems are activated automatically each time the vehicle is star ted. They come into operation in the event of a grip or trajectory problem.
This is indicated by flashing of this warning lamp in the instrument panel.
Snow driving assistance
(Intelligent Traction Control)
Your vehicle has a system to help driving on snow: Intelligent Traction Control. This automatic system continuously checks for situations of difficult sur face adhesion that could make it difficult to move off or make progress on deep fresh snow or compacted snow. In these situations, Intelligent Traction Control takes over from the ASR system, limiting the amount of wheel slip to provide the best traction and trajectory control, even
without snow tyres and with or without chains. In extremely severe conditions (snow on top of ice, sand, deep mud…), it can be useful to
deactivate the ESP/ASR systems to allow a degree of wheel spin and so recover grip.

191Driving
With the ignition on or the engine running, to release the parking brake, press on the brake pedal or the accelerator, pull then release control A .
Manual release
Before leaving the vehicle, check that parking brake warning lamp in the instrument panel is on fixed, not flashing.
Manual application
With the vehicle stationary, to apply the parking brake whether the engine is running or off, pullcontrol lever A .
The application of the parking brake is confirmed by:
- illumination of the braking warning lamp and of the P warning lamp in the control lever A ,
- display of the message "Handbrake on".
When the driver’s door is opened with the engine running, a message is displayed accompanied by an audible signal if the parking brake has not been applied.
The full application of the parking brake is confirmed by:
- the braking warning lamp and the P warning lamp in the control lever A going off,
- display of the message "Handbrake off ".
If you pull control lever A without pressing the brake pedal, the parking brake will not be released and a warning lamp will come on in the instrument panel.
Maximum application
If necessary, you can make a maximum application of the parking brake. This is obtained by means of a long pull on the control lever A , until you see the message "Handbrake on maximum" and a beep is heard. Maximum application is essential: - in the case of a vehicle towing a caravan or a trailer, if the automatic functions are activated but you are applying the parking brake manually, - when the gradient you are parked on may vary (e.g. on a ferry, on a lorry, during towing),
In the case of towing, a loaded vehicle or parking on a gradient, make a maximum application of the parking brake then turn the front wheels towards the pavement and engage a gear when you park. After a maximum application, the release time will be longer.

With the vehicle stationary, the parking brake is automatically applied when the engine is switched off.
Automatic application,
engine off
In the case of towing, a loaded vehicle or parking on a gradient, turn the front wheels towards the pavement and engage a gear when you park.
Before leaving the vehicle, check that parking brake warning lamp in the instrument panel is on fixed (not flashing). Never leave a child alone inside the vehicle with the ignition on, as they could release the parking brake.
- illumination of the braking warning lamp and of the P warning lamp in the control lever A ,
- display of the message "Handbrake on".
The application of the parking brake is confirmed by:
Automatic release
The electric parking brake releases automatically and progressively when you press the accelerator:  Manual gearbox: press down fully on the clutch pedal, engage first gear or reverse, press on the accelerator pedal and move off.  6-speed electronic gearbox system : select position A , M or R then press on the accelerator pedal.
When stationary, with the engine running, do not press the accelerator pedal unnecessarily, as you may release the parking brake.
Full release of the parking brake is confirmed by: - the braking warning lamp and the P warning lamp in the control lever A going off,
- display of the message "Handbrake off ".

193Driving
With the engine running and the vehicle stationary, in order to immobilise the vehicle it is essential to manually apply the parking
brake by pulling control lever A .
Immobilising the vehicle,
engine running
The emergency braking must only be used in exceptional circumstances.
Before leaving the vehicle, check that parking brake warning lamp in the instrument panel is on fixed, not flashing.
The application of the parking brake is confirmed by:
- illumination of the braking warning lamp and the P warning lamp in the control lever A ,
- display of the message "Handbrake on".
When the driver’s door is opened, a message is displayed accompanied by an audible signal, if the parking brake has not been applied.
Particular situations
In cer tain situations (e.g. star ting the engine), the parking brake can automatically alter its force. This is normal operation.
To advance your vehicle a few centimetres without star ting the engine, but with the ignition on, press on the brake pedal and release the parking brake by pulling then releasing the control lever A . The full release of the parking brake is confirmed by the warning lamps in the control lever A and in the instrument panel going off and display of the message "Handbrake off ". If the parking brake develops a fault while applied or if the battery runs flat, an emergency release is always possible.
Emergency braking
If a failure of the ESP system is signalled by the illumination of this warning lamp, then braking stability is not guaranteed. In this event, stability must be assured by the driver by repeating alternate "pull-release" actions on the control lever A .
In the event of a failure of the main ser vice brake or in an exceptional situation (e.g. driver taken ill, under instruction, etc) a continuous
pull on the control lever A will stop the vehicle. The electronic stability programme (ESP) provides stability during emergency braking. If the emergency braking malfunctions, the message "Parking brake faulty" will be displayed.

197Driving
SituationsConsequences
To apply the electric parking brake:  immobilise the vehicle and switch off the ignition.  pull the control for at least 5 seconds or until app lication is complete.  switch on the ignition and check the switching on of the electric parking brake warning lamps. The application is slower than during normal operati on. To release the electric parking brake:  switch on the ignition.  pull the control and hold it for approximately 3 seconds then release it. If the braking warning lamp is flashing or if the warning lamps do not come on with the ignition on, these procedures will not work. Pla ce the vehicle on level ground and have it checked by a CITROËN dealer or a qualified workshop.
and possibly
flashing
Display of the message " Parking brake fault " and of the following warning lamps: - Only the automatic application on switching off the engine and automatic release on acceleration functions are available. - The manual application/release of the electric p arking brake and the emergency braking are not available.
and possibly
flashing
Battery fault - If the battery warning lamp comes on you must st op immediately as soon as the traffic allows. Stop and immobilise your vehicle (if necessary, place the two chocks under the wheels). - Apply the electric parking brake before switching off the engine.