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Practical information -> Towing a trailer for Your Citroen C4 Grand Picasso SUV Second Generation (2013-2022)

Practical information  
Towing a trailer  
Towbar suitable for the attachment of a  
trailer or installation of a bicycle carrier, with  
additional lighting and signalling.  
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 or a  
qualified workshop.  
Driving with a trailer places greater  
demands on the towing vehicle and the  
driver must take particular care.  
Your vehicle is primarily designed for  
transporting people and luggage, but it may  
also be used for towing a trailer.  
If the towbar is not fitted by a CITROËN  
dealer, it is imperative that it is  
fitted in accordance with the vehicle  
manufacturer's instructions.  
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Practical information  
Driving advice  
Distribution of loads  
Cooling  
Braking  
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.  
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.  
Towing a trailer increases the braking distance.  
To avoid overheating of the brakes on a long  
mountain type of descent, the use of engine  
braking is recommended.  
Air density decreases with altitude, thus  
reducing engine performance. Above  
1 000 metres, the maximum towed load must  
be reduced by 10 % for every 1 000 metres of  
altitude.  
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.  
Tyres  
Check the tyre pressures of the towing  
vehicle and of the trailer, observing the  
recommended pressures.  
Refer to the "Technical data" section for details  
of the weights and towed loads which apply to  
your vehicle.  
If the warning lamp and the  
STOP warning lamp come on,  
stop the vehicle and switch off  
the engine as soon as possible.  
Lighting  
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Check the electrical lighting and signalling  
on the trailer.  
Side wind  
Take into account the increased sensitivity  
to side wind.  
The rear parking sensors will be  
deactivated automatically if a genuine  
CITROËN towbar is used.  
When not towing a trailer, remove the  
quickly-detachable tow ball before  
driving.  
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