I'll make sure he uses an OEM chain, thanks for pointing that out.
I've heard negative things regarding synthetic oil in these old MB's, by the way. I never tried it.
I now realize what a deal I've been getting on service when I see the prices people are paying on the forum. If anyone lives around NY, I'll be happy to refer you to my mechanic (he's MB exclusively).
2003 S500 Black/Charcoal
1990 560SEL 61k Arctic White/Grey
1988 420SEL Black/Palomino Sold @ 85k
1987 420SEL Midnight Blue/Grey
1986 420SEL Diamond Blue/Grey
1983 380SEL Champagne/Palomino