Hi Dave and a warm welcome!

It is not an issue to remove the distributors and their seals, nearly self-explaining, so that the procedure is not shown in the Audi repair manuals. It is only mentioned ("remove the distributor").

Remove the caps with leads first. Mind the rotor positions and undo the two fixing bolts at each distributor. Now you can dismantle them. Then remove the distributor housings at each cylinder head. You will find another seal behind it.

Here: http://www.partscats.info/ you can't find DIY instructions but images of the parts catalogue. Sometimes it is helpful.

Zuletzt bearbeitet von Tim A.; 17.04.2014 08:22.
Beste Grüße
Tim