Yeah, come up with answers to that and get back. 300cd is a neat car but there are some coupe-specific parts that get pricey.

I'd want to get it looked over by a competent mb tech first.

A good thing to ask the owner is when the valves were adjusted last... If they don't know or have no idea what you're asking, be concerned.

__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (116k)
1991 350SD (206k)
1991 300D (228k)
2008 ML320 CDI (199k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (267k)

Past Diesels:
1983 300D (228K), 1985 300D (233K), 1993 300D 2.5T (338k), 1993 300SD (291k)