As the title says, I would like to know where I could find the serial number (or VIN) on the engine on a Mercedes-Benz C-Class C220 CDI W204 from 2012. The engine is the OM651. I am looking for it as I want to know if the engine is the original one. Thank you very much!

1 Answer 1


I can find no specific information for your question, but after looking at the engine block i suggest 2 places to look on the block. Reference 2 red arrows in the image below. It may be difficult to impossible to see the engine serial number on that engine fully assembled and installed in the car.

enter image description here

  • Thanks! I'll try to look for the serial number on those two places. I find it very weird that there is no information about these kind of things. I guess most people go with their cars at the dealer, so there isn't a large request for this information.
    – TakeDown
    Commented Jun 1, 2018 at 18:47

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