MK5 & MK6 Jetta & Golf TDI Fuel Filter

Do-it-Yourself Tip

When replacing your VW TDI fuel filter you have 2 possible choices. There doesn’t seem to be much logic on which Volkswagens received which filters, but we will try to help you out. In general this filter (#21172) fits in the filter assembly with a smooth rounded edge around the area where the torx screws are. It supposed to be in the late (2006+) BRM engine cars, and late Common Rail Diesels. Make sure this is the fuel filter for your Volkswagen TDI by visually inspecting it. The alternate is shown below. Also, don't forget to add Stanadyne fuel conditioner, as inconsistent fuel quality continues to be an issue all across the country. A little goes a long way in keeping your diesel running like new.