UM, I think you have a major problem. What is that liquid around your injectors? I have no familiarity with your engine, but that looks really wrong to me. Someone else needs to chime in here, but if it were me, I would not drive a car with such a substantial fuel leak.

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1968 220D, w115, /8, OM615, Automatic transmission.
My 1987 300TD wagon was sold and my 2003 W210 E320 wagon was totaled (sheds tear).