hey everyone!! so glad to join the forum been lurking for years. i have a 2000 mercedes ml320. i joined because im having problems with my truck. its been making a grinding noise in which my local mechanic told me it was my rear driveshaft and i need a new rear driveshaft although i think its just the rear driveshaft bearing but not sure. i would think if i need the whole driveshaft the car would not drive in which it does but thought i would ask some of you pro's on here. anyone can help would be appreciated . thank in advance.

 

moved to W163 forum...

 

Not sure who your mechanic is, but first rule of thumb is take what they say with caution, especially when they want to kill a teensie bug with a $$$ledge hammer. (Why not just have him sell you a replacement w163?)
I think you need to be more specific on your "grinding noise" and it's location - it could be many things.
Have you asked for a second opinion from a reputable indie in your area?

 

the noise is like a lathe grinding noise coming from the middle of the under carriage. from what i read its the rear driveshaft center bearing but the mech is telling me the whole driveshaft which i dont think the car would drive if it was the whole driveshaft but not sure