As you all know and I just found out, the coolant draining from the block in the OM617 engine really makes a mess as it splashes over the frame and front suspension members. I had a hard time with several pans catching most of it so I could take it to the local disposal site.

Will the OM603 drain fit the older 617 engine family? The 603 has a drain connection that is a valve rather than a simple plug. It has a hose barb so you can put a piece of 1/2 inch hose over it, loosen the valve, and drain the coolant without making a mess. It would be great if the newer drain valve could be substituted for the older plug.

The OM617 drain plug has 14x1.5mm threads (my measurements). The part number is N 007604 014110.

The OM603 drain valve is part number A 601 997 04 30. I don't know the thread size.

Jeremy

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970