engine Citroen DS3 2010 1.G Workshop Manual

201Practical information
Fuse N°RatingFunctions
F820 A Multifunction screen, audio system, navigation radio, alarm control unit, alarm siren.
F930 A 12 V socket, por table navigation suppor t supply.
F1015 A Steering wheel controls.
F1115 A Ignition, diagnostic socket, automatic gearbox contro l unit.
F1215 A Rain/brightness sensor, trailer relay unit.
F135 A Main stop switch, engine relay unit.
F1415 A Parking sensors control unit, airbag control unit, instrument panel, digital air conditioning, USB Box, Hi-Fi ampli fier.
F1530 A Locking.
F16- Not used.
F1740 A Rear screen and door mirrors demisting/defrosting.
SH- PARC shunt.

Engine compartment
fusebox
The fusebox is placed in the engine compar tment near the battery (left-hand side). Access to the fuses
 Unclip the cover.  Change the fuse (see corresponding paragraph).  When you have finished, close the cover carefully to ensure the sealing of the fusebox.

203Practical information
Fuse table
Fuse N°RatingFunctions
F120 A Engine control unit supply, cooling fan unit control relay, multifunction engine control main relay, injection pump (Diesel).
F215 A Horn.
F310 A Front /rear wash-wipe.
F420 A LED lamps.
F515 A Diesel heater (Diesel), par ticle filter additive pum p (Diesel), air flow sensor (Diesel), blow-by heater an d electrovalves (VTi).
F610 A ABS/ESP control unit, secondary stop switch.
F710 A Electric power steering, automatic gearbox.
F825 A Star ter control.
F910 A Switching and protection unit (Diesel).
F1030 A Fuel heater (Diesel), blow-by heater (Diesel), fuel pump (VTi), injectors and ignition coils (petrol).
F1140 A Heater blower.

Battery Procedure for charging your battery when it is flat or for star ting the engine using another battery.
The battery is located under the bonnet. To gain access to it:  open the bonnet using the interior release lever, then the exterior safety catch,  secure the bonnet stay,
 remove the plastic cover by pulling on its grip for access to the two terminals,  unclip the fusebox to remove the battery, if necessary.
Access to the battery
 Connect the red cable to the positive terminal (+) of the flat battery A , then to the positive terminal (+) of the slave battery B .
Starting using another
battery
After refitting the battery, the Stop & Start system will only be active after a continuous period of immobilisation of the vehicle, a period which depends on the climatic conditions and the state of charge of the battery (up to about 8 hours).
The presence of this label, in par ticular with the Stop & Star t system, indicates the use of a 12 V lead-acid battery with special technology and specification, for which the involvement of a CITROËN dealer is required when replacing or disconnecting the battery. Failure to obser ve this recommendation may cause premature wear of
the battery.

207Practical information
 Connect one end of the green or black cable to the negative terminal (-) of the slave battery B .  Connect the other end of the green or black cable to the negative terminal (-) of the flat battery A .
 Star t the slave vehicle.  Operate the star ter of the broken down
vehicle and let the engine run.  Wait until the engine returns to idle and disconnect the cables.
Charging the battery using
a battery charger
Batteries contain harmful substances such as sulphuric acid and lead. They must be disposed of in accordance with regulations and must not, in any circumstances, be discarded with household waste. Take used remote control batteries and vehicle batteries to a special collection point.
 Disconnect the battery from the vehicle.
 Follow the instructions for use provided by the manufacturer of the charger.  Reconnect star ting with the negative terminal (-).  Check that the terminals and connectors are clean. If they are covered with sulphate (whitish or greenish deposit), remove them
and clean them.
The Stop & Star t battery does not have to be disconnected for charging. It is advisable to disconnect the battery if the vehicle is to be left unused for more than one month.

Load reduction mode System which manages the use of cer tain functions according to the level of charge remaining in the battery. When the vehicle is being driven, the load reduction function temporarily deactivates cer tain functions, such as the air conditioning,
the heated rear screen... The deactivated functions are reactivated automatically as soon as conditions permit.
Do not disconnect the terminals while the engine is running. Do not charge the batteries without disconnecting the terminals first.
Before disconnecting the battery
Wait 2 minutes after switching off the ignition before disconnecting the battery. Close the windows and the doors before disconnecting the battery.
Following reconnection of the battery
Following reconnection of the battery, switch on the ignition and wait 1 minute before star ting to permit initialisation of the electronic systems. However, if minor problems persist following this operation, contact a CITROËN dealer. Referring to the corresponding section,
you should yourself reinitialise: - the remote control key, - the GPS satellite navigation system.

Load reduction mode System which manages the use of cer tain functions according to the level of charge remaining in the battery. When the vehicle is being driven, the load reduction function temporarily deactivates cer tain functions, such as the air conditioning,
the heated rear screen... The deactivated functions are reactivated automatically as soon as conditions permit.
Do not disconnect the terminals while the engine is running. Do not charge the batteries without disconnecting the terminals first.
Before disconnecting the battery
Wait 2 minutes after switching off the ignition before disconnecting the battery. Close the windows and the doors before disconnecting the battery.
Following reconnection of the battery
Following reconnection of the battery, switch on the ignition and wait 1 minute before star ting to permit initialisation of the electronic systems. However, if minor problems persist following this operation, contact a CITROËN dealer. Referring to the corresponding section,
you should yourself reinitialise: - the remote control key, - the GPS satellite navigation system.

209Practical information
Energy economy mode
System which manages the period of use of cer tain fu nctions to conser ve a sufficient level of charge in the battery. After the engine has stopped, you can still use func tions such as the audio equipment, windscreen wipers, dipped beam headlamps, cour tesy lamps, etc. for a maximum combined period of thir ty mi nutes.
This period may be greatly reduced if the battery is not fully charged.
A flat battery prevents the engine from star ting (refer to the corresponding paragraph).
If the telephone is being used at the same time on the MyWay audio navigation system, it will be interrupted after 10 minutes.
Switching to economy mode
Once this period has elapsed, a message
appears on the multifunction screen indicating that the vehicle has switched to economy mode and the active functions are put on standby.
Exiting economy mode
These functions are reactivated automatically
the next time the vehicle is driven.  In order to resume the use of these functions immediately, star t the engine and let it run for a few minutes. The time available to you will then be double the period for which the engine is left running. However, this period will always be between five and thir ty minutes.

211Practical information
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,
 remove the polystyrene storage box,  remove the towing eye from the holder.
 On the front 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 the towed vehicle.  Place the gear lever in neutral (position Nfor an automatic gearbox).
 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 the towed vehicle.
Towing your vehicle Towing another vehicle Access to the tools
Failure to obser ve this special condition could result in damage to cer tain braking components and the absence of braking assistance the next time the engine is star ted.
When towing with all four wheels on the
ground, always use a towing bar. When towing with only two wheels on the ground, always use professional
lifting equipment. When towing with the engine off, there is no longer any assistance for braking or steering.

213Practical information
The rear parking sensors will be deactivated automatically if a genuine
CITROËN towbar is used.
Driving advice
Distribution of loads
 Distribute the load in the trailer so that the heaviest items are as close as possible to the axle and the nose weight approaches the maximum permitted without exceeding it. Air density decreases with altitude, thus reducing engine per formance. Above 1 000 metres, the maximum towing load must be reduced by 10 % and so on for every 1 000 metres of altitude. Refer to the "Technical Data" section for details of the weights and towing loads which apply to your vehicle.
Side wind
 Take into account the increased sensitivity to side wind.
Cooling
Towing a trailer on a slope increases the temperature of the coolant. As the fan is electrically controlled, its cooling capacity is not dependent on the engine speed.  To lower the engine speed, reduce your speed. The maximum towing load on a long slope depends on the gradient and the ambient temperature. In all cases, pay attention to the coolant temperature.
Braking
Towing a trailer increases the braking distance.
Tyres
 Check the tyre pressures of the towing vehicle and of the trailer, obser ving the recommended pressures.
Lighting
 Check the electrical lighting and signalling on the trailer.
 If the warning lamp and the STOP warning lamp come on, stop the vehicle and switch off
the engine as soon as possible.