To see if its the head gasket what u need to do is take the cover off that is over where to add oil, Its connected on my mk3 to the air filter, anyway when removed inside there should be like a foam or that sitting around the top, thats one way to see if the head gasket is leaking water.
Hi
Ive had the bonnet up while the engines running and theres no steam or anything and theres no water around the top of the head where it would be if the seal was bust. the engine sounds normal aswell, no loud noise different to normal etc
The water from the exhaust has bits of black in it, almost like soot.