My 2004 S4 has a stress mark on fender, possibly from a prior pot hole or speed bump incident (like a kink above the wheel well) and the front end makes noise at slow speeds when turning only. This issue only occurs when pulling out of, or turning into a parking spot. It sounds and feels like the wheel is rubbing, but obviously that is not the case. Once in a while, it sounds like metal whining, as if something needs greasing.

I had Audi dealer check it twice, and they say they could not diagnose and that it could be just normal quattro noise. I had an independent Audi specialist drive and awknowledge the noise but had no answers. Two other mechanics suggested bearings, and one mentioned front diff!

I am out of ideas and wish someone could help. How do you fix something no one can diagnose?

Thanks.

 

put it in the air and check out the chasis and once its in the air its easy to eliminate the bearings just spin the wheel by hand
good luck