Just away to do this on my Allroad this weekend as it'll be the first service I've done on this particular model. Why on earth do Audi install these daft fuel filters in a difficult to reach location that will undoubtedly leak when detached? There's plenty room in the engine bay and the conventional fuel filter can be filled with diesel rather than having to cycle the fuel pump with VCDS.
Anyway, moan over. Purchased VCDS a few weeks ago as the rear electric parking brake needs to be activated with VCDS to check pads, so thought I might as well get it considering it's computer dependant.