It is very important with this engine to use synthetic engine oil. Audi call for 5/40W, 5/30W, or 0/40W. This engine has been known to develop "sludge" in the engine if conventional non synthetic motor oil is used. The oil does not have to be bought from Audi, any reputable auto parts store has good quality synthetic engine oil. (your car takes 3.7 quarts). My friend that is a die hard Porsche/Audi technician insists that his customers use the genuine Audi oil filter on this engine (perhaps you could by three or four filters and oil drain plug washers from your local dealer).Audi do use a preparatory fluid in their power steering system that is not ATF. Audi use a commonly available sythetic gear oil in their manual gear box and a commonly available gear oil in the differential, but for the automatic transmission oil is best to use Audi's automatic transmission oil.
Ask other Audi owners and look in your local phone book to see if there any shops in your area that specialize in Audi repair and servicing.
We at Repaipal are trying to build something special. It would add great value to people in your community if you could take a moment and rate your experience with a dealership or repair shop in your area on our website. We are presently working on the Audi and Porsche section of our website, it will have some really really good information shortly.