I have 3 cylinders (2,3, & 4) with relatively low compression about a 150 PSI. And I have hydrocarbons in the coolant.
Sounds like a bad head gasket to me...other thoughts?
You'll have convinced me to just fix this engine.
I just acquired a 2003 BMW Z4. 6 manual transmission. The M54B30 likely has a blown head gasket. How big of a hassle/project would it be to swap the M54 for an N52b30? :driving: