2010.5 Citroen DS4 warning light

No aler t will be given in the following situations: - in the presence of stationary objects (parked vehicles, barriers, street lamps,
road signs...), - with vehicles moving in the opposite direction, - driving on a sinuous road or a sharp corner,
The aler t is given by a warning lamp which comes on in the door mirror on the side in question as soon as a vehicle - car, lorry, cycle - is detected and the following conditions are fulfilled: - all the vehicles must be moving in the same direction, - the speed of your vehicle is between 6 and 75 mph (10 and 140 km/h), - the difference in speed between your vehicle and the other vehicles must be less than 9 mph (15 km/h), - the traffic must be flowing normally, - in the case of an over taking manoeuvre, if this is prolonged and the vehicle being over taken remains in the blind spot, - you are driving on a straight or lightly cur ved road, - your vehicle is not pulling a trailer, a
caravan...
- when over taking (or being over taken by) a very long vehicle (lorry, coach...) which is at the same time detected at the rear in the
blind spot angle and present in the driver's for ward field of vision, - in very heavy traffic: vehicles detected in front and behind are confused with a lorry or a stationary object, - when over taking quickly.

259Practical information
Dashboard fuses
The fusebox is placed in the lower dashboard (left-hand side).
Access to the fuses
 Refer to the paragraph "Access to the tools".
Fuse tables
Removable
relay N°RatingFunctions
R1- Not used.
R2- 12 V socket in boot.
Fuse N°RatingFunctions
F320 A Parking lamps, trailer hazard warning lamps
F420 A Interior lighting, trailer inter face.
F530 A Front one-touch electric windows.
F6- Not used.
F1120 A 12 V trailer socket.
F12- Not used.
F1330 A Hi-Fi amplifier.
F2220 A Trailer signalling.

271Practical 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 towed load must be reduced by 10 % for every 1 000 metres of altitude. Refer to the "Technical Data" section for details of the weights and towed 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 towed load on a long incline depends on the gradient and the ambient temperature. In all cases, keep a check on 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.

277Technical data
WEIGHTS AND TOWED LOADS (in kg)
Petrol enginesVTi 120THP 155THP 200
GearboxesManualManualManual
Model codes: NX...5FS05FV8/P5FU8
- Unladen weight 1 205 1 284 1 316
- Kerb weight 1 280 1 359 1 391
- Gross vehicle weight (GV W) 1 755 1 795 1 820
- Gross train weight (GTW) on a 12 % gradient 2 955 3 195 2 820
- Braked trailer (within the GTW limit) on a 12 % gradient 1 200 1 400 1 000
- Braked trailer * (with load transfer within the GTW limit) 1 450 1 650 1 250
- Unbraked trailer 640 680 695
- Recommended nose weight 75 75 75
* 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.

279Technical data
WEIGHTS AND TOWED LOADS (in kg)
Diesel enginesHDi 110 PEFHDi 163 PEF
GearboxManualElectronic gearbox systemManual
Model codes: NX...9HR89HR8/PSRHH8
- Unladen weight 1 290 1 300 1 320
- Kerb weight 1 365 1 375 1 395
- Gross vehicle weight (GV W) 1 805 1 815 1 880
- Gross train weight (GTW) on a 12 % gradient 3 105 3 115 3 180
- Braked trailer (within GTW limit) on 12 % gradient 1 300 1 300 1 300
- Braked trailer * (with load transfer with the GTW limit) 1 550 1 550 1 550
- Unbraked trailer 680 680 695
- Recommended nose weight 75 75 75
* 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 vehicl e 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.