
The cabin air filter of the Citroen C-Quatre is located in the engine compartment, beneath the wiper cover panel. Remove the insulation cotton to access it. Below is relevant information about cabin air filters: 1. Introduction: The cabin air filter is a filter installed in the car's air conditioning system. It can absorb dust particles, alleviate respiratory discomfort, reduce irritation for allergy sufferers, and protect the air conditioning cooling system. 2. Function: It ensures the filter fits tightly against the housing, preventing unfiltered air from entering the cabin. It adsorbs moisture, soot, ozone, and odors from the air, preventing car windows from fogging up and ensuring clear visibility for drivers and passengers, thereby enhancing driving safety. 3. Replacement Interval: The cabin air filter should generally be replaced every 10,000 kilometers.

The air filter for my old Citroen C-Quatre is quite tricky to locate – it's hidden beneath the windshield wipers. You'll need to pop the hood, first removing that row of black plastic covers below the windshield using a T20 screwdriver to undo all the clips. After lifting the cover, spot that rectangular plastic box behind the air intake? Just squeeze the clips on both sides and pull it out – the filter is tucked inside that box. Last time I changed it myself, I ended up covered in dust. Special reminder: the location is identical for both sedan and hatchback versions, but be extra careful with older cars as the plastic parts get brittle – never force them open in winter.

Having repaired Citroëns for over a decade, I must say the C4's cabin air filter design is quite user-unfriendly. Located beneath the rear windshield in the engine compartment, it requires complete removal of the front bulkhead cover first. Don't cut corners by skipping wiper arm removal - some veteran mechanics have broken the front panel clips by forcing it. The real headache is the filter housing removal direction - it must be pulled horizontally outward, as the slightest angle will jam it. Recommend replacement every 20,000 km, especially during northern China's catkin season - a clogged filter significantly increases blower noise.

Last time during , the 4S shop technician showed me the location: It's at the rear of the engine compartment, covered by the black deflector under the front windshield. The operation involves three steps: removing the wiper arm screws, lifting the rubber seal, and prying open the plastic cover clips. When pulling out the rectangular filter box, use finesse - too much force might snap the connecting tube. The trickiest part of DIY replacement is realigning the deflector; misaligned slots will cause rattling noises. Hatchback owners should take extra care to prevent leaves from falling into the air intake.

As a female car owner, I was really frustrated by this design. To replace the filter, you have to lie flat over the engine compartment, first remove four T20 screws and six plastic clips, then lift that large black panel connected to the wipers. Inside the exposed rectangular slot lies the filter housing horizontally - pulling it out sends a cloud of dust right into your face. Sedan owners need to be especially careful not to install the filter backwards (watch the arrow direction), as incorrect airflow direction makes the replacement pointless. It's best to check before rainy season - last year I didn't notice mine had grown mold until it was too late.

The C-Quatre's cabin air filter is installed at the very front of the air intake system, specifically located beneath the windshield cowl panel. Access requires removal of a three-component assembly: wiper arms, weatherstrip, and deflector. Key notes: 1) Mark wiper arm positions before removal to ensure proper realignment 2) The filter housing connects to an intake pipe—avoid forceful pulling 3) Clean accumulated debris from the filter slot before installing new filter. This design makes the area prone to leaf accumulation, necessitating annual spring cleaning to prevent corrosion of the AC evaporator core.


