I have a new C class 220 CDI, it has a squeaky drivers seat that has been back to the main dealer 3 times so far. Anyone else have similar problems.

 

I have a '05 C230, got it with 14K miles on it. I noticed a squeak in my upper seatback in about a week. took it to the dealer and they fixed it, a week later my wife noticed the same squeak occurring in her seat. The service rep said that they put felt in the seat back eliminating the squeaking from a spring. I don't have much faith in that statement, but for what its worth its what he said. good luck