Hi!

My W124 OM606.910 (NA) is leaking diesel quite heavily. Since I can run it just fine, I guess it has to be one of the return hoses (right?).

Before I order new plastic fuel lines and pull the intake manifold (scary), can you tell from my video where the leak is coming from? Like, is it 'obviously' from a known trouble area? https://www.youtube.com/watch?v=AGlhLjBwHzo

Will there be issues with air in the fuel system after replacing them all? Any precautions there?

Any help is greatly appreciated!

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1985 W460 300GD OM617.912 w/ STT turbo (ongoing OM606 engine swap)
2011 W212 E220 CDI