Originally Posted by piman
OK, almost off the first page, so I'll bite.
I don't know the M30, bit I'd guess you're looking at a head gasket at minimum. Upper end overhaul, I dunno know. Deal with the leakage.
Hitler may have been a prick, but he isn't responsible for your overheat.
Find out EXACTLY where its leaking from and let us know. From there we can help.
Dave M