I'm not quite as impressed with the MB Diesel engines are you are......

The 603 head failures and rod bending issues, while not quite as bad as GM's 5.7 gas engine conversion, are horrible oversights for a car company that wants (or should I say used to want) to be known for engineering excellence.

Mercedes did the right thing when they offered to replace every trap oxidizer presented to a MB dealer, they should do the same thing for head failures caused by the trap AND the later 603 series engines that have bent rods. I wonder if the reason for the fantastic replacement policy on the trap-oxidizer was due to federal emissions rules...

PEH

OM616 and non turbo OM617's also have hardened journals and sodium valves, the big turbo change was the oil cooled pistons.
IMHO anybody dumb enough to hang an aftermarket turbo kit on an engine that was not designed for turbocharging deserves what they get.