Audifans.com

The Audifans.com KnowledgeBase is a repository of technical help compiled by past and present owners of Audi. Its focus is more on the "older" models ( - 1995 or so), but this is mostly due to the contributors having greater experience with them.

Editing requires registration, which can only be done by arrangement with the site owner.

The wiki was originally created before MediaWiki was well-known, on a -era wiki engine, and was mostly edited by people from the Audifans.com (previously "quattro") mailing list, which started in 1991. (about)

As of September 2011, the KnowledgeBase part of the site is down, caused by 'server issues' (the guy who ran the server failed to pay his bills)!

(As of: DD Month YYYY)