If the leak is on the side with the oil filter it can also be the place where the pressure gauge line screws into the filter housing (the plastic lines shrink and leak...the only solution is replacing the line to the gauge). There is also a gasket in the oil filter housing on the side where the line connects...hopefully that was done when the block gasket was done.

Also, mine was leaking at the point where the injector pump connects to the block, but just tightening up the nuts seems to have stopped that one. You really need to pinpoint the location of the leaks in order to properly fix it.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz