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Replacing the Engine Air Filter

Model: Ford Focus MK 1 - Years 1998-2004
Part: Air filter

Replacing the engine air filter is extremely simple as the filter housing (air box) is clearly visible and accessible; therefore, unscrew the fastening screws of the cover and lift it to extract the old filter. Remove any dirt residues from inside the box without allowing them to enter the intake duct, then insert the new filter ensuring that the gasket adheres perfectly to the edges and reposition the cover, securing it with the respective screws. The new engine air filter will allow for a smoother airflow, improving both performance and fuel consumption.

Updated on 15 February 2026 by ScegliAuto

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