2010 S550 front wheel cherping noise

Mercedes » S-Class » 2006-2013
Problem Description

When i move from complete stop one of the front wheels is making the cherping rotery sound that stops after i reach about 10-15 mpg. And also stops completly after driven for few miles, ive been told its a bad upper arm controler, but i decided to change breakpads instead. The problem continues... Could it be the upper arm controler?  Please help!