We have 2 Mercedes Benz Beauties...MY mL 350 Black/with the high end front bumper thing added..I have 13,000 miles and started hearing a whining noise...I have had several M CLASS CARS..so I brought it to my Dealer and they said it was a pulley...that was faulty..They ordered it from Germany..I waited 10 days.. I brought it in today...and waited for it to be installed..When I left..the same sound was still there...My car was always so quiet and its so annoying....I am waiting for my husband to come home from work to hear the sound..before I call them again.....
Any suggestions???
Warranmtee covrered it.