I am having a little trouble with my Audi A4. I own a A4 3.0 TDI Quattro convertible 2008. Every time I take my car out of drive or turning my car, the car feels as if though it is being dragged to the side I am turning and also when I lock my steering to either side I can hear screeching noise. I took it the local garage however they could figure out what it was. They suggested couple of things on trial and error however I am not made of money . Can anyone help me this.