To the right of the engine there is a container (with a screw-top) which is underneath a curved metal plate. There are two fuel pipes and an electrical connector attached to the filter assembly.

To get to the fuel filter the metal plate has to be removed then remove the attached fuel pipes and the electrical connector. Beware of the plastic connectors, they very easily break! Then you can unscrew the top of the container to find the fuel filter in situe.