I had the car at the dealership yesterday. They diagnose that the rear axle needle bearings are worn and that the entire rear axle should be replaced. They said that MB does not allow them to rebuild the axle --MB is concerned that it will not be done correctly (not balanced correctly). Axle is $700-plus, and installation about $850 -- my indie says he can do it for under $1300 (has to buy the parts from MB --so can't discount parts). -- my indie is the guy who couldn't find the problem in two weeks of trying.
What to do???