2009.5 Citroen DS3 towing

59Comfort
Recommendations for ventilation and air co nditioning
If after an extended stop in sunshine, the interior temperature is very high, first ventilate the passenger compar tment for a few moments.
Put the air flow control at a setting high enough to quickly change the air in the passenger compar tment. The air conditioning system does not contain chlorine and does not present any danger to the ozone layer.
In order for these systems to be fully effective, follow the operation and maintenance guidelines below:  To obtain an even air distribution, take care not to obstruct the exterior air intake grilles located at the base of the windscreen, the nozzles, the vents and the air outlets, as well as the air extractor located in the boot.  Do not cover the sunshine sensor, located on the d ashboard; this is used for regulation of the air conditioning system.  Operate the air conditioning system for at least 5 to 10 minutes, once or twice a month to keep it in per fect working order.  Ensure that the passenger compar tment filter is in g ood condition and have the filter elements replaced regularly (refer to the "Checks" secti on). We recommend the use of a combined passenger compa r tment filter. Thanks to its special active additive, it contributes to the purification of the air breathed by the occupants and the cleanliness of the passenger compar t ment (reduction of allergic symptoms, bad odours and greasy deposits).  To guarantee correct operation of the air conditioning system, you are also advised to have it checked regularly as recommended in the Maint enance and Warranty Guide.
 If the system does not produce cold air, deactivate it and contact a CITROËN dealer. When towing the maximum load on a steep gradient in high temperatures, switching off the air conditioning increases the available engine power and so improves the towing ability.
The condensation created by the air conditioning results in a discharge of water under the vehicle which is per fectly normal.

1. Rear parcel shelf helfelf (see the following page for details) 2. Retaining strap3. Location for Hi- Fi amplifier4. Stowing rings5. Storage box (version equipped with a temporar y puncture repair kit) (see the following page for details) or Tool box (version equipped with a spare wheel) (refer to section "Practical Information - § Changing a wheel")

Boot fi ttings

Direction indicators
Selection of the left or right direction indicators to signal a change of direction of the vehicle.  Left: lower the lighting stalk beyond the point of resistance.
 Right: raise the lighting stalk beyond the point of resistance.
"Motorway" function
 Press briefly upwards or downwards, without going beyond the point of resistance; the direction indicators will flash 3 times.
Hazard warning
lamps
A visual warning by means of the direction indicators to aler t other road users to a vehicle breakdown, towing or accident.  Press this button, the direction indicators
flash. They can operate with the ignition off.

Direction indicators
Selection of the left or right direction indicators to signal a change of direction of the vehicle.  Left: lower the lighting stalk beyond the point of resistance.
 Right: raise the lighting stalk beyond the point of resistance.
"Motorway" function
 Press briefly upwards or downwards, without going beyond the point of resistance; the direction indicators will flash 3 times.
Hazard warning
lamps
A visual warning by means of the direction indicators to aler t other road users to a vehicle breakdown, towing or accident.  Press this button, the direction indicators
flash. They can operate with the ignition off.

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.

205Practical 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.

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.

207Practical 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.