engine Citroen DS3 2009.5 1.G Owner's Guide

83Access
This is indicated by lighting of the cour tesy lamps and flashing of the direction indicators for a few seconds.
Locating your vehicle
 Press the closed padlock to
locate your locked vehicle in a car park.
Anti-theft protection
Electronic engine immobiliser
The key contains an electronic chip which has a special code. When the ignition is switched on, this code must be recognised in order for star ting to be possible. This electronic engine immobiliser locks the engine management system a few minutes after the ignition is switched off and prevents star ting of the engine by anyone who does not have the key.
In the event of a malfunction, you are informed by lighting of this warning lamp, an audible signal and a message on the multifunction screen. In this case, your vehicle does not star t; contact a CITROËN dealer as soon as possible.
Folding the key
 First press button A to fold the key.

- Position 1: Stop - Position 2: Ignition - Position 3: Star ting
Ignition switch Starting the vehicle
 Inser t the key in the ignition switch.
The system recognises the star ting code.  Turn the key fully towards the fascia to position 3 (Star ting) .  When the engine star ts, release the key.
 Immobilise the vehicle.
 Turn the key fully towards you to position 1 (Stop) .  Remove the key from the ignition switch.
Switching the vehicle off
Do not attach any heavy objects to the key as this could weigh down on it when in the ignition switch and cause a fault.
Key reminder
If the key is left in the ignition switch, an audible signal sounds when the driver's door is opened.

Doors
Opening
From outside
 After unlocking the vehicle using the remote control or the key, pull the door handle.
From inside
 Pull the door lever to open the door; this unlocks this vehicle completely.
Closing
When a door is not closed correctly:
- when the engine is running , this warning lamp comes on, accompanied by a message on the multifunction screen for a few seconds,
- when the vehicle is moving (speed higher than 6 mph (10 km/h)), this warning lamp comes on, accompanied by an audible signal and a message on the multifunction screen for a few seconds.
Version with deadlocking
The interior door controls do not operate when the vehicle is deadlocked.

95Access
Boot
Opening
 After unlocking the vehicle using the remote control or the key, pull the handle and raise the tailgate.
Closing
 Lower the tailgate using the interior grab handle.
If the tailgate is not closed correctly:
- when the engine is running , this warning lamp comes on, accompanied by a message on the multifunction screen for a few seconds,
- when the vehicle is moving (speed above 6 mph (10 km/h)), this warning lamp comes on, accompanied by an audible signal and a message on the multifunction screen for a few seconds.
System for mechanical unlocking of the boot in the event of a battery or central locking malfunction.
Tailgate release
Unlocking
 Fold back the rear benchseat to gain access to the lock from inside the boot.  Inser t a small screwdriver into hole A of the lock to unlock the tailgate.

Fuel tank Fuel tank capacity: approximately 50 litres (petrol) or 48 litres (Diesel).
Low fuel level
Filling
A label affixed to the inside of the flap reminds you of the type of fuel to be used depending on your engine. Additions of fuel must be of at least 5 litres, in order to be taken into account by the fuel gauge.
The key cannot be removed from the lock until the cap is refitted. Opening the filler cap may create a noise a caused by an inrush of air. This vacuum is entirely normal, resulting from the sealing of the fuel system.
To fill the tank in complete safety:  the engine must be switched off, open the fuel filler flap,  inser t the key in the cap, then turn it to the left,
 remove the cap and hook it onto the clip located on the inside of the flap,  fill the tank, but do not continue after the 3rd cut- off of the pump ; this could cause malfunctions.
When you have filled the tank:  put the cap back in place,  turn the key to the right, then remove it from the cap,  close the flap.
When the fuel tank minimum level is reached this warning lamp comes
on on the instrument panel. When it first comes on there remains approximately 5 litres of fuel in the tank. You must refuel as soon as possible to avoid running out of fuel. If you run out of fuel (Diesel), refer also to the "Checks" section.

97Access
Quality of the fuel used for
petrol engines
The petrol engines are per fectly compatible with E10 type petrol biofuels (containing 10 % ethanol), conforming to European standards EN 228 and EN 15376. E85 type fuels (containing up to 85 % ethanol) are reser ved exclusively for vehicles marketed for the use of this type of fuel (BioFlex vehicles). The quality of the ethanol must comply with European standard EN 15293. For Brazil only, special vehicles are marketed to run on fuels containing up to 100 % ethanol (E100 type).
Quality of the fuel used for
Diesel engines
The Diesel engines are per fectly compatible with biofuels which conform to current and future European standards (Diesel fuel which complies with standard EN 590 mixed with a biofuel which complies with standard EN 14214) available at the pumps (containing up to 7 % Fatty Acid Methyl Ester). The B30 biofuel can be used in cer tain Diesel engines; however, this use is subject to strict application of the special ser vicing conditions. Consult a CITROËN dealer. The use of any other type of (bio)fuel (vegetable or animal oils, pure or diluted, domestic fuel...) is strictly prohibited (risk of damage to the engine and fuel system).

A. Cour tesy lampB. Map reading lamps
Courtesy lamp
In this position, the cour tesy lamp comes on gradually:
Courtesy lamp
- when the vehicle is unlocked, - when the key is removed from the ignition, - when a door is opened, - when the remote control locking button is activated, in order to locate your vehicle.
It switches off gradually: - when the vehicle is locked, - when the ignition is switched on, - 30 seconds after the last door is closed.
Permanently off.
Permanent lighting.
With the "permanent lighting" mode, the duration of lighting varies, depending on the circumstances: - with the ignition off, approximately ten minutes, - in energy economy mode, approximately thir ty seconds, - with the engine running, unlimited.
Map reading lamps
 With the ignition on, press the corresponding switch.

111Visibility
Interior mood lighting
The dimmed passenger compar tment lighting improves v isibility in the vehicle when the light is poor.
Switching on
At night, the illumination of footwells and the central dashboard storage compar tment comes on automatically when the sidelamps are switched on.
Switching off
The interior mood lighting switches off automatically when the sidelamps are switched off. It can be switched off manually using the instrument panel lighting rheostat button.  With the lighting on, press several times on the left hand button of the instrument panel to progressively reduce the dashboard lighting level.  Press again to reduce the lighting level to the minimum and switch off the interior mood lighting.
This comes on automatically when the boot is opened and switches off automatically when the boot is closed.
Boot lamp
Different lighting times are provided: - when the ignition is off,
approximately ten minutes, - in energy economy mode, approximately thir ty seconds, - when the engine is running, no limit.

135Safety
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 on the instrument panel.

135Safety
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 on the instrument panel.