[swedishandgerman]

There's another current thread about overheating in which there are instructions on how to expel all the air from the cooling system on these cars. You can improve that further by raising the front of the car very high in the air.

That aside, you know not to fill the expansion tank to 'Max'? If you do, it will just expel coolant when hot. You fill it to exactly half way between max and min.