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Driving -> Noise (Electric) for Your Citroen C4 SUV Third Generation (2020-2025)

Driving  
Do not exceed the maximum towable  
weights.  
At altitude: reduce the maximum load by  
10% per 1,000 metres of altitude; the lower  
air density at high altitudes decreases engine  
performance.  
If a genuine CITROËN towing device is  
used, the rear parking sensors will be  
deactivated automatically to avoid the audible  
signal.  
Noise (Electric)  
On the outside  
Due to the vehicle’s quiet operation when  
driving, the driver must pay particular attention.  
When manoeuvring, the driver must always  
check the vehicle's immediate surroundings.  
At speeds of up to 19 mph (30 km/h), the  
pedestrian horn warns other road users of the  
vehicle’s presence.  
When driving  
Cooling  
New vehicle: do not tow a trailer until the  
vehicle has driven at least 620 miles  
(1,000 kilometres).  
Towing a trailer uphill causes the coolant  
temperature to increase. The maximum towable  
load depends on the gradient and the exterior  
temperature. The fan’s cooling capacity does not  
increase with engine speed.  
► Reduce speed and lower the engine speed to  
limit the amount of heating produced.  
► Pay constant attention to the coolant  
temperature.  
If this warning lamp and the STOP  
warning lamp come on, stop the  
vehicle and switch off the engine as soon as  
possible.  
Cooling the traction battery  
The cooling fan comes on during  
charging to cool the on-board charger and the  
traction battery.  
If the outside temperature is high, let the  
engine idle for 1 to 2 minutes after the  
vehicle comes to a stop, to help it to cool.  
On the inside  
Before setting off  
During use, you may hear certain perfectly  
normal noises specific to electric vehicles, such  
as:  
– Traction battery relay when starting.  
– Vacuum pump when braking.  
Nose weight  
► Distribute the load in the trailer so that the  
heaviest items are as close as possible to the  
axle and the nose weight (at the point where it  
joins your vehicle) approaches the maximum  
permitted without exceeding it.  
Brakes  
– Vehicle tyres or aerodynamics when driving.  
– Jolting and knocking noise during hill starts.  
Using the engine brake is recommended to limit  
the overheating of the brakes. Braking distances  
are increased when towing a trailer.  
Tyres  
Towing  
► Check the tyre pressures of the towing  
vehicle and of the trailer, observing the  
recommended pressures.  
Side wind  
Driving with a trailer places greater  
demands on the towing vehicle and  
particular care must be taken.  
Bear in mind that the vehicle will be more  
susceptible to wind when towing.  
Lighting  
► Check the electrical signalling on the trailer  
and the headlamp beam height of your vehicle.  
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