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Ease of use and comfort -> Heating and Ventilation for Your Citroen C4 Cactus SUV Second Generation (2018-2024)

Ease of use and comfort  
exterior, via the grille located at the base of the  
windscreen, or from the inside in air recirculation  
mode.  
Returning the backrest to  
the normal position  
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Controls  
The controls are accessible in the "Air  
conditioning" menu of touch screen A.  
The demisting/defrosting controls for the  
windscreen and rear screen are located below  
the touch screen.  
Air distribution  
They can be removed and are interchangeable  
side to side.  
To remove a head restraint:  
► Pull the headrest upwards to the stop.  
► Then, press the lug A.  
To refit a head restraint:  
► Engage the head restraint rods in the  
apertures, keeping the head restraint in line with  
the seat backrest.  
To lower a head restraint:  
► Press down on the head restraint and on the  
lug A at the same time.  
► Straighten the seat backrest 2 and secure it.  
► Unfasten and return the seat belts to the  
sides of the backrest.  
When repositioning the backrest, ensure  
that the seat belts are not trapped and  
the red indicator, located next to the controls  
1, is no longer visible.  
1. Windscreen demisting/defrosting vents  
2. Front side window demisting/defrosting vents  
3. Adjustable and closable side air vents  
(driver’s side only)  
Never drive with the head restraints  
removed; they must be in place and  
adjusted to the position for use (up).  
Rear head restraints  
These have one position for use (up) and a  
stowed position (down).  
4. Adjustable and closable central air vents  
5. Air outlets to the front footwells  
6. Air outlets to the rear footwells  
Heating and Ventilation  
Air intake  
The air circulating in the passenger compartment  
is filtered and originates either from the  
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Ease of use and comfort  
time in the sunshine, air the passenger  
compartment for a few moments.  
Put the air flow control at a setting high  
enough to quickly change the air in the  
passenger compartment.  
Temporarily deactivate the Stop & Start  
system to maintain a comfortable temperature  
in the passenger compartment.  
For more information on the Stop & Start,  
refer to the corresponding section.  
Advice  
Using the ventilation and air  
conditioning system  
To ensure that air is distributed evenly,  
keep the external air intake grilles at the base  
of the windscreen, the nozzles, the vents, the  
air outlets and the air extractor in the boot  
free from obstructions.  
► Do not cover the sunshine sensor located  
on the dashboard; this sensor is used to  
regulate the automatic air conditioning  
system.  
► Operate the air conditioning system for at  
least 5 to 10 minutes once or twice a month to  
keep it in perfect working order.  
► If the system does not produce cold air,  
switch it off and contact a CITROËN dealer or  
a qualified workshop.  
Condensation created by the air  
conditioning results in a discharge of  
water underneath the vehicle. This is perfectly  
normal.  
Heating / Manual air  
conditioning  
Servicing the ventilation and air  
conditioning system  
► Ensure that the passenger compartment  
filter is in good condition and have the filter  
elements replaced regularly.  
We recommend using a composite passenger  
compartment filter. Thanks to its special active  
additive, this type of filter helps to purify the  
air breathed by the occupants and keep the  
passenger compartment clean (by reducing  
allergic symptoms, unpleasant odours and  
greasy deposits).  
When towing the maximum load on a steep  
gradient in high temperatures, switching off  
the air conditioning increases the available  
engine power, enhancing the towing capacity.  
The heating only operates when the engine is  
running.  
To ensure correct operation of the  
air conditioning system, have it checked  
according to the recommendations in the  
Maintenance and Warranty Guide.  
Avoid driving for too long with the  
ventilation off or with prolonged operation  
of interior air recirculation. Risk of misting and  
deterioration of the air quality!  
Stop & Start  
The heating and air conditioning systems  
only operate when the engine is running.  
If the interior temperature is very high  
after the vehicle has stood for a long  
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