Pressure Relief Valve In Cap, Checking

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Fig 1: Checking Pressure Relief Valve In Coolant Reservoir Cap

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-- Position the :VAG1274B with the :VAG1274/9 on the cap.

-- Generate pressure with cooling system tester hand pump.

The pressure release valve must open at 1.4 to 1.6 bar (20.30 to 23.20 psi).

-- If pressure relief valve does not open as specified, replace cap.