Everything during the head gasket replacement was done as it should be, and i am quite sure i did not damage the gasket or anything like that...hopefully no freak issue there....

I too noticed that the leak seems to relate to oil change, i did change the seal in there and tightened the thing as much as i can.....can the housing or the cap be cracked?

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1993 300E, 2.8 M104 .....