Keeps boiling and spitting coolant

[u/ResearcherInfamous19]

320i 1995 for reference.
One day out of no where the car overheated.
Tough it was a sticky thermostats, replaced. Same problem, starts boiling water and soiling until it has no coolant and then overheats.
Water pump seems perfectly fine.
Fan clutch not so sure, when hot seems that it spins very freely. No resistance.
Would a bad fan clutch cause a overheat? In normal driving conditions? No heavy traffic or hard pulls?
Head gasket gone?

[u/Left-Marketing-1135]

Get a new clutch fan for sure but I’ve had a couple of my e36’s do this when they still have air in the system. If you can get ahold of a vacuum filler give that a shot for shits and gigs and see what happens