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VOLVOBOY · Nov 5th, 2020, 08:46

Hi.
Air-lock , Low coolant level but most likely a stuck thermostat.
Quite a common issue as the central pin gets stuck inside the housing.
Cheaper to replace just the inner part but Volvo likes you to buy the complete thing.

Nov 5th, 2020, 08:46	#2
VOLVOBOY Lazy Member Last Online: Today 10:50 Join Date: Mar 2007 Location: HORLEY	Hi. Air-lock , Low coolant level but most likely a stuck thermostat. Quite a common issue as the central pin gets stuck inside the housing. Cheaper to replace just the inner part but Volvo likes you to buy the complete thing.