How do you change the air filter on your 2001 A4 Audi?

Make sure the engine is cool before performing this. The clips around the air box are very colse to the side of the engine. There is a piece of plastic that has a little scoop on it, remove that first. Then, remove the ribbed intake hose that starts at the rad support. There are a few wires hooked into the top of the air box. Remove them. Then, there are a series of metal clips (about 4 or 5 of them). Remove them. Lift up on the top of the air box, and there should be your air filter. (It may be tight to get the old out and the new in, but it will work). Hope this helps!