E46 2.5 petrol coolant keeps boiling!!

[E462.5]

Hi everyone I'm new to this site but I have a major problem with my 2.5 petrol coolant..

It started off with a split coolant pipe lower reservoir which has been replaced,
New coolant
Bleed the system with ignition on, heaters on full/hot and bleed screw out all that malarkey..
Then I ran the engine and had the coolant bleeder in but not tight watching the air/steam come out..
And as from there it just won't bleed! 😠
So I checked the thermostat and removed it because the drivers side radiator pipe won't get hot like the others..
Still no diffrent and the lower reservoir pipe blows off from the conection join and it's a new pipe!!

Would apreciate any technical help on the situation and your thoughts
Cheers
Gaz

[MarcoZandrini]

How hot did the engine get when the hose cracked? You may have popped the head gasket if the engine got too hot.

[E462.5]

It's been hot a few times to be honest and we are doing a compression test tomorrow but it doesn't look good, checked all hose entrees and exits for blockage and other stuff like water pump and thermo, rad Ect. .