I have a Metris with 3800 miles on it. There is a grinding noise when brakes are applied. Has done it since day one. Took it in to the dealer and they agree there is a grinding noise but it is normal. The service rep and I drove another one on the lot and it did it too. They have agreed as a one time courtesy to change out the pads, rotors etc. My concern is they are just going to replace everything with the same components that are on there now and it will do the same thing. It is a very annoying grinding noise. Anyone else have this issue and did MB address it?