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Comfort -> Ventilation for Your Citroen Ds4 SUV Second Generation (2021-2025)

Ventilation  
Air intake  
The air circulating in the passenger compartment  
is filtered and originates either from the outside  
via the grille located at the base of the windscreen  
or from the inside in air recirculation mode.  
Air treatment  
The incoming air follows various routes  
depending on the controls selected by the  
driver:  
-
direct arrival in the passenger compartment  
(air intake),  
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passage through a heating circuit (heating),  
passage through a cooling circuit (air  
conditioning).  
Control panel  
Air distribution  
The controls of this system are grouped  
together on control panel A on the centre  
console.  
1. Windscreen demisting-defrosting vents.  
2. Front side window demisting-defrosting  
vents.  
4. Central adjustable air vents.  
5. Air outlets to the front footwells.  
6. Air nozzles to the front footwells.  
7. Air outlets to the rear footwells.  
3. Side adjustable air vents.  
 
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Comfort  
Recommendations for ventilation and air conditioning  
In order for these systems to be fully effective, follow the operation and maintenance  
guidelines below:  
If after an extended stop in sunshine,  
the interior temperature is very  
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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 dashboard; this is used for regulation  
of the digital 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.  
Ensure that the passenger compartment filter is in good condition and have the filter  
elements replaced regularly (refer to the "Checks" section).  
high, first ventilate 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.  
The air conditioning system does not  
contain chlorine and does not present  
any danger to the ozone layer.  
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We recommend the use of a combined passenger compartment 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 compartment (reduction of allergic  
symptoms, bad odours and greasy deposits).  
To ensure correct operation of the air conditioning system, you are also advised to have  
it checked regularly as recommended in the Maintenance and Warranty Guide.  
If the system does not produce cold air, switch it off and contact a CITROËN dealer or a  
qualified workshop.  
The condensation created by the air  
conditioning results in a discharge  
of water under the vehicle which is  
perfectly normal.  
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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.  
Stop & Start  
The heating and air conditioning systems only work when the engine is running. To maintain  
a comfortable temperature in the passenger compartment, you can temporarily deactivate  
the Stop & Start system (see "Driving").