I just bought a 2001.5 S4 and a hose is leaking (air) not sure what it's for but if you take off the right covering at the top of the engine it's just to the left of the coolant tank. It has a braided wrap around the hoseand it says (ADWEST) with a number above it 078133681AR. I was hoping some1 had a engine diagram or some info to help out. Sorry can't upload pics right now but if it will help i will try asap.

 

 

http://i56.photobucket.com/albums/g1.../enginetwo.jpg

http://i56.photobucket.com/albums/g1.../engineone.jpg

here are some pics I circled the hose thats leaking feed back or info please. Would a warranty cover this also I have one month left on mine.

 

Just wanted to see if I could help, that line is a fuel line and is $506 from the dealership. How do you know it has air coming out?

Here are some pics to reference from,

 

Thats just a standard vaccum line, the warranty will cover that repair. There shouldn't be any part numbers on it.

 

Yes, I figured if he said there was air coming out then that wasnt right butI did want to reference him on what that part # was.

Adam~

 

As stated it's the vacuum hose for the FPR, it's about $2 per meter. You should replace it ASAP, with out the line on the FPR you are dumping a lot of fuel in then engine all the time.

 

thanks guys im goin to audiorlando right now.

 

Easy fix just a pain to get to the hose and it was cheap a $13 do it yourself job (two clamps and one hose). The service center told me it would be about a week plus before they could get me inn. Haha,as they made me giggle like a school girl!!! Thanks again for your input.