The OM617.95x doesn't fit into a W115 because of the oil filter housing hitting the brake booster. It can be relocated but I don't know of anyone who has fabricated a filter housing. ...[/QUOTE]

here's a link to a guy that made the adapter: Alternative oil filter and oil cooler system

But I've heard that turbo motors and manual transmissions don't work well (heard lots of bad conversion stories) - but maybe that's because of the american IP (non m pump) - do they run the are the 617 turbos with manual transmissions in europe?