Diesels respond well to working under load, this is what I did to run in my C250D after engine rebuild and new rings, honed bore.

Long steep gradient, high gear, low revs forces rings out on each stroke seating them well - car did many miles subsequently with at least two other owners.

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David


1996 Mercedes S124 E300TD - 129k - rolling restoration project -

1998 Mercedes W210 300TD - 118k (assimilated into above vehicle)