Checking the Pressure Relief Valve in the Version 2 Cap:
WARNING: This page is about a different variant/trim than selected.
-- Position the :VAG1274B with the :VAG1274/9 on the cap.
-- Generate pressure with the cooling system tester hand pump.
Blue Cap:
- The pressure release valve must open at 1.4 to 1.6 bar (20.30 to 23.20 psi).
-- If the pressure relief valve does not react as specified, replace the cap.
Black Cap:
- The pressure release valve must open at 1.6 to 1.8 bar (23.2 to 26.1 psi).
-- If the pressure relief valve does not react as specified, replace the cap.