Originally Posted by Mimi05SRT6
Well if the entire drivetrain is Mercedes, I'll be sure to bring my car to the Mercedes dealership in the future to avoid any possible problems like this. Thanks for posting this up.

I thought the same thing but after a visit to a local Mercedes dealer they informed me they wouldn't even touch the car.
They also only work with a Mercedes warranty and no other warranty company whatsoever.
Fortunately I have not needed any service since I got the car a year ago but will check with other dealers in the area to see if I get the same response.
I change my own oil and filters and so far no service has been required.