[MBZ] 1997 Mercedes-Benz : C-Class 4 Dr C230 Se

[ts]

A friend of mine is interested in the above 4 cylinder gasser. Heard I was a 
MB guy.  I told him I know only about 1970-1980 diesels but maybe the group 
has had some understanding of these. Does any one have a bead on
1. Maint costs on these
2. Gas mileage
3. Any bad actor parts/things which may haunt him/her
Regards Tom Scordato 1979 240D