I had a compression test done on my 81 300SD (OM617), and the results were...
cyl. 1-300
cyl. 2-280
cyl. 3-300
cyl. 4-300
cyl. 5-280

I know 300 is what the compression is supposed to be on these engines, but what about 280? It's close, but low. Is it good, bad?
-Joe

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'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate

Sooner or later every car falls apart, ours does it later!
-German Narrator in a MB Promotion Film about the then brand new W123.