Coolant Temperature, Measure with Closed Cooling System
Install, Connect
Install temperature gauge in heater hose. Collect emerging coolant.
Inspect
Coolant temperature - operating temperature ≥ 80 ° C/176 ° F.
Remove, Disconnect
Remove temperature gauge from heater hose.
Cooling system - see operations "Cooling System, Top Up and Bleed" and "Cooling System, Check for Leaks".
Install, Connect 
Inspect 
Remove, Disconnect 