I Have done another Test...
Head Gasket ...
When engine is cold, start it, Drive for 15 minutes, switch engine off.
Open Coolant Cap: Many Pressure- so Coolant flows out of the Expansion Tank.
While Opening the Cap slowly: Coolant in expansion tank goes from Maximum to the top of Cap (More more more - flows over ...) When Pressure is away, Coolant level is sinking to minimum...
Is this The HeadGasket ? , i do it, no Problem.
And Can cause a Defective Headgasket, that this car isnīt Heating ?
Greetings
When i drive now 20 KM and came back home- When i Pull of the expansion Tank Cap TOMORROW Morging- Much pressure: Tank overflows, and if Pressure is away, coolant level sinks to minimum.