Yup. Even under warranty, there is a $500 plus charge for each oil change. After having Mercedes do it 4 times (The boss/wife has put 30K on it already.) and reviewing the bill, the work performed, is the same I have been doing to my '93 300D and '87 190D. Only problem is, I do not know the oil capacity and the oil filter location. I have figured out how to remove the engine cover though...