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Steve Tinker · 03-09-2016, 01:12 PM

1) Replace the coolant cap.
2) Inspect the pressure relief valve for leakage (crud around the seal) replace if required.
3) Lift relief valve D ring for at least 3-4 complete heat cycles to eradicate air in system - engine to running temp & then cool down.
4) Top up with (correct) coolant mix as level will drop if air was in the system, check the level daily until stable.

03-09-2016, 01:12 PM	#3
Steve Tinker Registered User Join Date: Dec 2008 Location: Queensland, Australia Posts: 1,522	1) Replace the coolant cap. 2) Inspect the pressure relief valve for leakage (crud around the seal) replace if required. 3) Lift relief valve D ring for at least 3-4 complete heat cycles to eradicate air in system - engine to running temp & then cool down. 4) Top up with (correct) coolant mix as level will drop if air was in the system, check the level daily until stable. __________________ 2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley. 2001 MV Agusta F4.