Nice... my project on my SLK 230 was a pain. Whoever tightens the fill plugs at the factory is a sick, sick person. I bought two quarts of MB 85w 90 at the dealer for $34 per quart (the book says 1.2 quarts). It took me two special orders thru a local tool supplier to get a 14mm hex that would work (total $25). Maybe next time I will just take it to the dealer. But then, I would have missed the experience.