2009.5 Citroen DS3 DAG trailer

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.

191Practical information
Dashboard fuse box
The fuse box is placed in the lower section of the dashboard (left-hand side).
Access to the fuses
 Refer to the paragraph "Access to the tools".
Fuse tables
Fuse N°RatingFunctions
FH365 A Trailer relay unit.
FH37- Not used.
FH3820 A Hi-Fi amplifier.
FH3920 A Heated seats.
FH4030 A Trailer relay unit.
RatingFunctions
F115 A Rear wiper.
F2- Not used.
F35 A Airbags and pretensioners control unit.
F410 A
Air conditioning, clutch switch, electrochromatic mirror,
par ticle filter pump (Diesel), diagnostic socket, airflow sensor (Diesel).
F530 A Electric windows panel, passenger's electric window co ntrol,
front electric window motor.
F630 A Driver's electric window motor.
F75 A Cour tesy lamp, glove box lighting.

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.

Towing a trailer, a caravan, etc.
Towbar suitable for the attachment of a trailer or caravan with additional lighting and signalling. Your vehicle is primarily designed for transpor ting people and luggage, but it may
also be used for towing a trailer.
We recommend the use of genuine CITROËN towbars and their harnesses that have been tested and approved from the design stage of your vehicle,
and that the fitting of the towbar is entrusted to a CITROËN dealer. If the trailer is not fitted by a CITROËN dealer, it is imperative that it is fitted using the electrical pre-equipment installed at the rear of the vehicle, in accordance with the manufacturer's instructions.
Driving with a trailer subjects the towing vehicle to more significant stress and its driver must be par ticularly careful.

203Practical 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.

209Technical data
WEIGHTS AND TOWED LOADS (in kg)
Petrol engines VTi 95 VTi 120 THP 150
Gearboxes Manual Manual Auto Manual
Model codes: SA... 8FR0 5FS0 5FS9 5FXH
- Unladen weight 1 075 1 075 1 145 1 165
- Kerb weight 1 150 1 150 1 220 1 240
- Gross vehicle weight (GV W) 1 552 1 554 1 587 1 597
- Gross train weight (GTW) on a 12 % gradient 2 452 2 454 2 487 2 497
- Braked trailer (within the GTW limit) on a 12 % gradient 900 900 900 900
- Braked trailer * (with load transfer within the GTW limit) 1 150 1 150 1 150 1 150
- Unbraked trailer 570 570 570 570
- Recommended nose weight 46 46 46 46
* The weight of the braked trailer can be increased, within the GTW limit, if the GV W of the towin g vehicle is reduced by an equal amount. Warning: towing using a lightly loaded towing vehicle may have an adverse effect on its road holding.
The GTW and towed load values indicated are valid u p to a maximum altitude of 1 000 metres; the towed load mentioned must be reduced by 10 % for each additional 1 000 metres of altitude. The speed of a towing vehicle must not exceed 60 m ph (100 km/h) (comply with the legislation in force in your country). High ambient temperatures may result in a reduction in the per formance of the vehicle to protect the engine; if the ambient temperature is above 37 °C,
limit the towed load.

211Technical data
WEIGHTS AND TOWED LOADS (in kg)
Diesel enginesHDi 70 PEFHDi 90 PEFHDi 110 PEF
GearboxManualManualManual
Model codes: SA...8HZC9HP09HR8
- Unladen weight - 1 080 1 090
- Kerb weight - 1 155 1 165
- Gross vehicle weight (GV W) - 1 584 1 612
- Gross train weight (GTW) on a 12 % gradient - 2 484 2 512
- Braked trailer (within GTW limit) on 12 % gradient - 900 900
- Braked trailer * (with load transfer with the GTW limit) - 1 150 1 150
- Unbraked trailer - 570 570
- Recommended nose weight - 46 46
The GTW and towed load values indicated are valid up to a maximum altitude of 1 000 metres; the towed load mentioned must be reduced by 10 % for each additional 1 000 metres of altitude. The speed of a towing vehicle must not exceed 60 m ph (100 km/h) (comply with the legislation in force in your country). High ambient temperatures may result in a reduction in the per formance of the vehicle to protect the engine; if the ambient temperature is above 37 °C, limit the towed load.
* The weight of the braked trailer can be increased, within the GTW limit, if the GV W of the towin g vehicle is reduced by an equal amount. Warning: towing using a lightly loaded towing vehicle may have an adverse effect on its road holding.