The DIESELFILTER FI280 is a crucial component designed for various Citroën and Peugeot models. It fits the Citroën CX and several Peugeot vehicles such as the 205, 309, 405, 605, and J5 up to the year 1998. This fuel filter effectively removes impurities in diesel fuel, ensuring the engine runs efficiently and reliably. Regular replacement of the diesel fuel filter is vital for the vehicle's performance and longevity.