Dude you should go and buy it from your local Audi dealer. I bought some after-market timing belt replacement kit w/ t-belt, drive belt, all the tensioner, water-pump, and thermostat from some company that so call sold factory O.E.M. parts on ebay.com and the only thing that actually fit was the water-pump. Everything else didn't fit and I had to go to the Audi dealer and purchase the rest of the parts. Plus I tried returning the extra parts and they didn't take it just because the water pump was missing???????? I work for a Toyota dealer and if you're going to go buy the parts tell the parts salesperson that you work for a dealer close by, that way you could get a employee discount. I only pay about $220. for everything else. Good-luck and the other thing find a know mechanic if not, the go to a dealer. goodluck.