I'm in the market for a W123 and went to go look at a 1983 Mercedes 240D - It looked pretty good nothing incredible but what I found interesting was when I did a blow-by/cap test the cap did not move AT ALL! My initial reaction was this is amazing but noticed that the engine bay was quite dirty which looked like oil. The car has around 240,000M on it so I'm questioning whether this is just a great engine that was maintained or I'm missing something.
VidMate Mobdro
Anyone ever experience anything like this?

Apparently, yes.

Mercedes 240D Question

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Christopher
'06 Mercedes E350 station wagon (silver/black)
'85 Mercedes 300D (black pearl/palomino)
'85 Mercedes 300SD (smoke silver/burgundy)
'79 Cadillac Sedan DeVille

'05 Toyota Camry (because always running is nice)

'85 Mercedes 300D sold back to orig. owner 8-1-06
'84 Volvo 264GL Diesel, owned 2000-2013

Strange. So exact same question from a different user name 26 days later. If the original poster, they never read the useful replies. Rude or confused poster?

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1984 & 1985 CA 300D's
1964 & 65 Mopar's - Valiant, Dart, Newport
1996 & 2002 Chrysler minivans

Or a new naming convention for scammers.
Subtler than JohnJames12. Suppose this is minimal effort post history.

https://www.reddit.com/r/dieselbenz/comments/few86p/mercedes_240d_question/
https://www.benzworld.org/threads/mercedes-240d-question.3046913/

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1981 240D 4sp manual. Ivory White.

But why? Why go through the effort? It is perplexing.