Any idea on what causes this?

Its begiining to annoy me.

Brakes are quiet when driving straight or turning left, but if I turn right, I hear a squeaking from the brakes.

Do I need to change out the pads, the rotors, or both?

Let me know, parts price is excellent from partshop, and I just want to make sure what the problem is so I can rectify it.

Thanks,

Alon

Ash I don't know if this will help. My 300D does the same thing only turning left. I found the right rear wheel bearing is slightly loose. I have not had time to repair it so I don't know that will stop the squeal. You might want to check all four wheels for slack, that could cause a brake pad to make slight contact. just my thought's.