So you are saying the level is HIGHER immediately after you shut off the engine versus when you let it sit? It should be the opposite. Perhaps there is foaming in the oil from what you added that happens when it runs?

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2009 ML320 Bluetec
1985 300CD
1981 300TD

Past Mercedes
1979 300TD
1982 300TD
2000 E320 4Matic Wagon
1998 E430
1984 300SD
1980 300SD