Hey everyone. I just bought my first audi and well I have a problem. I own a 1997 audi a4 quattro 2.8 v6 awd. It was running just fine when I bought it but today I drove it to town and there is a really loud/horrid grinding sound. I'm sure its on the right side but I'm not 100% sure if its in the front or back. I think its in the back. But it only happens when I make (((left))) turns. It never does it when I make right turns. If anyone could help out with this problem I would greatly appreciate it a lot! A lot of people have told me its a differential or axle but i'd like to known from professional audi people before I just take it in. And again thanks a lot if you can help!