We recently picked up an 2003 3.0 X5. for the most part the car is in good shape but like anything used there are some things we are tracking down to repair.

When the car is turned all the way to the right it growls, more than a normal car would. To the left its fine.

I am thinking that since it just to the one direction that would rule out the pump and leave the steering rack. These are fairly expensive so I want to be sure before replacing it.

Any suggestions?