Pressure Relief Valve in Cap, Checking
WARNING: This page is about a different car, the 2015 Volkswagen Beetle, 2014 Volkswagen Beetle, and 2013 Volkswagen Beetle. However, it is still accessible from the selected car via links, so may be relevant.
-- Install the cap in the Adapter V.A.G 1274/9.
-- Clamp the Connecting Piece V.A.G 1274 B/1 on the Adapter V.A.G 1274/9.
-- Connect the Connecting Piece V.A.G 1274 B/1 to the Coolant System Tester V.A.G 1274 B using the hose provided.
-- Generate a positive pressure of maximum 1.4 bar using the hand pump on the cooling system tester.
Pressure relief valve must not open yet.
If pressure relief valve opens prematurely:
-- Replace the cover.
-- Raise the pressure.
The pressure relief valve must open when the specified pressure is exceeded.
If pressure relief valve does not open:
-- Replace the cover.