2010.5 Citroen DS4 parking brake

Stop & Start The Stop & Star t system puts the engine temporarily on standby - STOP mode - during stops in the traffic (red lights, traffic jams, or other...). The engine restar ts automatically - START mode - as soon as y ou want to move off. The restar t takes place instantly, quickly and silently. Per fect for urban use, the Stop & Star t system reduce s fuel consumption and exhaust emissions as well as the noise level when stationary.
Operation
Going into engine STOP mode
With the automatic gearbox system, for your comfor t during parking maoeuvres, STOP mode is not available for a few seconds after coming out of reverse gear. STOP mode does not affect the functionality of the vehicle, such as braking, power steering, for example.
Never refuel with the engine in STOP mode; you must switch off the ignition with the key.
The "ECO" warning lamp comes on in the instrument panel and the engine goes into standby:
- with a manual gearbox , at speeds below 12 mph (20 km/h), when you put the gear lever into neutral and release the clutch pedal, - with the 6-speed electronic gearbox system , at a speed below 5 mph (8 km/h),
when you press the brake pedal or put the gear lever into position N .
If your vehicle is fitted with the system, a time counter calculates the sum of the periods in STOP mode during a journey. It resets itself to zero every time the ignition is switched on with the key.
STOP mode is not invoked when: - the driver's door is open, - the driver's seat belt is not fastened, - the vehicle has not exceeded 6 mph (10 km/h) since the last engine start using the key, - the electric parking brake is applied or being applied, - the engine is needed to maintain a comfor table temperature in the passenger compar tment, - demisting is active, - some special conditions (battery charge, engine temperature, braking assistance, ambient temperature...) where the engine is needed to assure control of a system.
Special cases:STOP mode unavailable
In this case, the "ECO" warning lamp flashes for a few seconds, then goes off. This operation is per fectly normal.

Electric parking brake
This system does not require any routine ser vicing. However, in the event of a problem, have the system checked by a CITROËN dealer or a qualified workshop. For more information, see "Driving - Electric parking brake - § Operating faults".
Only use products recommended by CITROËN or products of equivalent quality and specification. In order to optimise the operation of units as impor tant as the braking system, CITROËN selects and offers very specific products. To avoid damaging the electrical units, the use of a high pressure washer in the engine compar tment is strictly prohibited . Brake disc wear
For information on checking brake disc wear, contact a CITROËN dealer or a qualified workshop.
Manual parking brake
If a loss of effectiveness of this system is noticed, the parking brake must be checked, even between two ser vices. Checking this system must be done by a CITROËN dealer or a qualified workshop.
Brake pads
Brake wear depends on the style of driving, par ticularly in the case of vehicles used in town, over shor t distances. It may be necessary to have the condition of the brakes checked, even between vehicle ser vices. Unless there is a leak in the system, a drop in the brake fluid level indicates that the brake pads are worn.

Removing a wheel
Parking the vehicle
Immobilise the vehicle where it does not block traffic: the ground must be level, stable and non-slippery ground. Apply the parking brake unless it has been programmed to automatic mode, switch off the ignition and engage first gear * to lock the wheels. Check that the braking warning lamps in the instrument panel are on (not flashing). If necessary, place a chock under the wheel diagonally opposite the wheel to be changed. The occupants must get out of the vehicle and wait where they are safe. Never go underneath a vehicle raised using a jack; use an axle stand.
List of operations
 Remove the chromed bolt cover from each of the bolts using the tool 3 (according to
equipment).  Fit the security socket 4 on the wheelbrace 1 to slacken the security bolt.
 Slacken the other bolts using the wheelbrace 1 only.
* position R for the electronic gearbox system.

Towing the vehicle Procedure for having your vehicle towed or for towing another vehicle using a removable towing eye.
The towing eye is installed in the boot under the floor. To gain access to it:  open the boot,  raise the floor,
 secure it by hooking its cord on the hook on the rear parcel shelf suppor t,  remove the towing eye from the holder.
Access to the tools
General recommendations
Obser ve the legislation in force in your country. Ensure that the weight of the towing vehicle is higher than that of the towed vehicle. The driver must stay at the wheel of the towed vehicle. Driving on motor ways and fast roads is prohibited when towing. When towing a vehicle with all four wheels on the ground, always use an approved towing bar; rope and straps are prohibited. When towing a vehicle with the engine off, there is no longer any power
assistance for braking or steering.
In the following cases, you must always call on a professional recovery ser vice: - vehicle broken down on a motor way or fast road, - when it is not possible to put the gearbox into neutral, unlock the steering, or release the parking brake, - towing with only two wheels on the ground, - where there is no approved towing bar available...

269Practical information
 On the front bumper, unclip the cover by pressing at the bottom.  Screw the towing eye in fully.  Install the towing bar.
 On the rear bumper, unclip the cover by pressing at the bottom.  Screw the towing eye in fully.  Install the towing bar.  Switch on the hazard warning lamps on both vehicles.  Move off gently, drive slowly and for a shor t distance.
Towing your vehicle Towing another vehicle
 Place the gear lever in neutral (position N on the electronic gearbox system). Failure to obser ve this special condition could result in damage to cer tain components (braking, transmission...) and the absence of braking assistance the next time the engine is star ted.
 Unlock the steering by turning the key in the ignition one notch and release the
parking brake.  Switch on the hazard warning lamps on both vehicles.
 Move off gently, drive slowly and for a shor t distance.