Citroen DS3 2009.5 1.G Owner's Manual

159Driving
Rear parking sensors
System consisting of four proximity sensors, located in the rear bumper. This detects any obstacle (person, vehicle, tree, gate, etc.) behind the vehicle, except obstacles located just below the bumper.
An object, such as a stake, a roadworks cone or any other similar object may be detected at the beginning of the manoeuvre, but may no longer be detected when the vehicle comes close to it.
The parking sensor system cannot, in any circumstances, take the place of the vigilance and responsibility of the driver.
The system is activated as soon as reverse gear is engaged, accompanied by an audible signal. The proximity information is given by: - an audible signal, which becomes more
rapid as the vehicle approaches the obstacle. - a graphic on the multifunction screen, with
blocks which become increasingly closer to the vehicle.
Activation
When the distance between the rear of the vehicle and the obstacle is less than thirty centimetres, t he audible signal becomes continuous and the "Danger" symbol appears on the multifunction screen. On completion of the manoeuvre, when you exit reverse gear, the system becomes inactive.

Programming Operating faults
If there is an operating fault, when reverse gear is engaged this warning lamp comes on on the instrument panel, accompanied by an audible signal (shor t beep) and a message on the multifunction screen.
You can activate or deactivate the system by means of the multifunction screen configuration menu. The system state is memorised when switching off the ignition. For more information on access to the parking assistance menu, refer to vehicle configuration in the "Multifunction screens" section corresponding to your screen.
The system will be deactivated automatically when towing a trailer or when a bicycle carrier is fitted (vehicle fitted with a towbar or bicycle carrier recommended by CITROËN).
In bad or wintry weather, ensure that the sensors are not covered with mud, frost or snow.

165Checks
Bonnet
Protects the components of the engine and provides ac cess for checking levels.
Opening
 Open the front left door.  Pull the interior release lever A , located at the bottom of the door aper ture.
 Push the exterior safety catch B to the left and raise the bonnet.  Unclip the bonnet stay C from its housing, holding it by its foam protection.  Fix the stay in the notch to hold the bonnet open.
The location of the interior release lever prevents opening of the bonnet while
the front left door is closed.
When the engine is hot, handle the exterior safety catch and the stay with care.

Closing
Running out of fuel
(Diesel)
If your vehicle is fitted with an HDI engine, the fuel system must be primed if you run out of fuel. This system consists of a priming pump, a transparent pipe and a bleed screw under the bonnet.
HDi 90 and HDi 110 FAP
engines
 Fill the fuel tank with at least five litres of Diesel.  Open the bonnet.  Depending on version, unclip the cover to gain access to the priming pump.  Squeeze and release the priming pump until fuel appears in the transparent pipe with the green connector.  Operate the star ter until the engine star ts.  Depending on version, put the cover back in position and clip it in place.  Close the bonnet.
If the engine does not star t at the first attempt, do not try again. Operate the priming pump again, then the star ter.
 Take the stay out of the suppor t notch.  Clip the stay in its housing.  Lower the bonnet and release it at the end of its travel.  Pull on the bonnet to check that it is fully latched.

Closing
Running out of fuel
(Diesel)
If your vehicle is fitted with an HDI engine, the fuel system must be primed if you run out of fuel. This system consists of a priming pump, a transparent pipe and a bleed screw under the bonnet.
HDi 90 and HDi 110 FAP
engines
 Fill the fuel tank with at least five litres of Diesel.  Open the bonnet.  Depending on version, unclip the cover to gain access to the priming pump.  Squeeze and release the priming pump until fuel appears in the transparent pipe with the green connector.  Operate the star ter until the engine star ts.  Depending on version, put the cover back in position and clip it in place.  Close the bonnet.
If the engine does not star t at the first attempt, do not try again. Operate the priming pump again, then the star ter.
 Take the stay out of the suppor t notch.  Clip the stay in its housing.  Lower the bonnet and release it at the end of its travel.  Pull on the bonnet to check that it is fully latched.

167Checks
* According to engine.
Petrol engines
1. Screenwash reser voir. 2. Coolant header tank. 3. Air filter * .
4. Brake fluid reser voir. 5. Battery. 6. Fusebox. 7. Engine oil dipstick. 8. Engine oil filler cap.

* According to engine.
Diesel engines
1. Screenwash reser voir. 2. Coolant header tank. 3. Air filter * .
4. Brake fluid reser voir. 5. Battery. 6. Fusebox. 7. Engine oil dipstick. 8. Engine oil filler cap. 9. Priming pump * .

169Checks
Checking levels
Check all of these levels regularly and top them up if necessary, unless other wise indicated. If a level drops significantly, have the corresponding system checked by a CITROËN dealer.
Oil level
Engine oil change
Refer to the Maintenance and Warranty Guide for details of the inter val for this operation.
In order to maintain the reliability of the engine and emission control system, the use of additives in the engine oil is prohibited.
Oil grade
The oil must be suitable for your engine and conform to the manufacturer's recommendations.
Brake fluid level
Changing the fl uid
Refer to the Maintenance and Warranty Guide for details of the inter val for this operation.
Fluid specifi cation
The brake fluid must conform to the manufacturer's recommendations and meet the DOT4 standard.
The brake fluid level should be close to the "MA X" mark. If it is not, check the brake pad wear.
The reading will only be correct if the vehicle is on level ground and the engine has been off for more than 15 minutes. The check is carried out either when the ignition is switched on using the oil level indicator on the instrument panel, or using the dipstick.

Changing the coolant
The coolant does not have to be changed.
Fluid specifi cation
The coolant must conform to the manufacturer's recommendations.
Screenwash fluid level
Fluid specifi cation
For optimum cleaning and to avoid freezing, this fluid must not be topped up or replaced with water.
Take care when carrying out checks under the bonnet as some par ts of the engine can be very hot (risk of burns).
Coolant level
Top up the level when necessary.
The coolant level should be close to the "MA X" mark but should never exceed it. When the engine is warm, the temperature of the coolant is regulated by the fan. This can operate with the ignition off. On vehicles which are fitted with a par ticle emission filter, the fan may operate after the vehicle has been switched off, even if the engine is cold.
In addition, as the cooling system is pressurised, wait at least one hour after switching off the engine before carrying out any work. To avoid any risk of scalding, unscrew the cap by two turns to allow the pressure to drop.
When the pressure has dropped, remove the cap and top up the level.

171Checks
Diesel additive level
(Diesel engine with particle
emission filter)
A low additive level is indicated by lighting of the ser vice warning lamp, accompanied by an audible warning and a message on the multifunction screen.
Topping up
This additive must be topped up by a CITROËN
dealer without delay.
Used products
Avoid prolonged contact of used oil or fluids with the skin. Most of these fluids are harmful to health or indeed very corrosive.
Do not discard used oil or fluids into sewers or onto the ground. Take used oil to a CITROËN dealer (France) or an authorised waste disposal site.