I've put together the following descriptions of the available repair manuals for our Audis.  Each link leads to a description of the book, including my comments, and includes a link to Amazon.com, an online bookstore, where you can purchase the manual or book.  I've shopped around quite a bit, and Amazon.com most consistently has the best price and avaliability.  I've set up an arrangement with Amazon.com where you can purchase these manuals directly from them through my site, securely and without risk.  However, you can use the ISDN number that I have provided to purchase the books from anywhere that sells books.

Audi Repair Manuals.  Select the link to see a description, and a link to Amazon.com for purchasing.
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100/200 including quattro, sedan and wagon, '89-91, Factory Repair Manual by Robert Bentley

4000/Coupe including Quattro and Quattro Turbo, '84-87, Factory Repair Manual by Robert Bentley

80/90 sedan and coupe including quattro, '88-92, Factory Repair Manual by Robert Bentley

Other manuals to be added:

100/A6 including quattro, S4 and S6, '92-96, Factory Repair Manual by Robert Bentley

The A4  and A6 (new body style) manuals are not published yet.  I'll update this page once they are available.