Pressure Relief Valve in Cap, Checking
-- Install the cap -1- in the :VAG1274/9 -2-.
-- Connect the :VAG1274/9 to the :VAG1274 B using the hose provided.
-- Generate pressure with the cooling system tester hand pump.
- The pressure release valve must open at 1.6 to 1.8 bar.
-- If pressure relief valve does not open as specified, replace the cap.