What causes a squeaking sound driving turning wheel left or right? on 2001 Mercedes-Benz E430

This squeaking sound is not heard all of the times. Usually when the car has just started or after getting it wash.

Asked by for the 2001 Mercedes-Benz E430
if you mean a squeak / rubbing sound in your steering column, then it is the rubber boot inside...
2 answers
loose/worn power steering belt slipping (slips more when wet