Update..
Cylinder 1 ~158psi
Cylinder 2 ~158psi
Cylinder 3 ~158psi
Cylinder 4 ~110psi
Cylinder 5 ~110psi
Cylinder 6 ~158psi

Seems like the narrow space between 4 and 5 is compromised.
Is it worth doing a leak down test? Oh boy buy more tools.
No oil in coolant or coolant in the oil.
How much harder is a head gasket job on an m54 compared to an m20?
Is this time to do anything else at 165000 miles? Vanos seals?

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2001 x5 3.0 (sold with broken motor), 1990 e30 M3, 1991 318is, 2002 325i, 2008 335i Dinan stage 3 6 speed,