I recently bought a 2003 A6 3.0. It was inspected at a local Audi dealer with no faults. The problem that I am having is very high fuel consumption. I am averaging about 15.5 L/100 KMS. Right now I am getting 13.5 with mostly highway miles. I checked the spark plugs and they are very clean. They look like they have been replaced just before I bought the car. I don’t have a VAG.COM cable yet to check error codes. I am thinking that maybe the O2 sensor may be at fault. Does any one know how to check O2 sensor, or any other experiences with this problem.

 

when you have it checked for fault codes let us know of the codes and dont forget its a 3.0 and its how hard you drive it that counts

 

Well, I like to drive for fun, and did so with my previous car, but now I am driving like a little old lady. I'm not having fun anymore, but still gettin poor milage.

 

get your self out to a night club and forget the car then when your sober ask the question again hick, mind you Ive had a few tonight but not too much

 

I like your kind of thinking. I know the right place, just down the street. We call it the Pink Palace. Living in Montreal has its benifits.