Greetings,
According to the Bentley Manual and some other forum sources I can't recall offhand, " (for) 2002-2004 models: Fuel filter is integrated with fuel pump and fuel level sender in fuel tank. It is specified by Porsche as 'lifetime filter' , owing to the reduced volume of fuel flowing through (the) non-return system. No replacement interval is specified." No worries, mate. I haven't heard of fuel filter issues in 2002 and later boxes.
