Pressure Relief Valve in Cap, Checking
WARNING: This page is about a different car, the 2016 Volkswagen Beetle, 2015 Volkswagen Beetle, and 2014 Volkswagen Beetle. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Connecting Connector Piece V.A.G 1274 B/1 To Cooling System Tester V.A.G 1274 B Using Connecting Hose
-- Position the Cooling System Tester VAG 1274B with the Cooling System Tester - Adapter VAG 1274/9 on the cap.
-- Generate pressure with cooling system tester hand pump.
- The pressure release valve must open at 1.6 to 1.8 bar (23.2 to 26.1 psi).
-- If pressure relief valve does not open as specified, replace cap.