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How to Clean the Particulate Filter in the Citroen C4

Model: Citroen C4 MK 2 - Years 2010-2018
Part: Diesel particulate filter

Cleaning the particulate filter in the Citroen C4 is similar to the procedure for the Citroen DS4. First, lift the car on a ramp and on stands to access the underside where the filter is located. As shown in the video, the filter is held by two screws, one at the top and one at the bottom left; once those screws are unscrewed, the filter can be removed. In the video, a special cleaner for particulate filters is used; follow the instructions in the manual or consult an expert. The filter should be immersed in the liquid overnight to take effect and clean thoroughly. Once cleaned, the filter can be reinstalled. As seen in the video, on the first start after cleaning, foam will come out; this is completely normal and will stop in about ten minutes, and you are ready to go!

Posted on 7 May 2026 by ScegliAuto

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by ScegliAuto

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