Pressure Relief Valve In Cap, Checking
WARNING: This page is about a different car, the 2010 Audi A5, 2009 Audi A5, and 2008 Audi A5. However, it is still accessible from the selected car via links, so may be relevant.
-- Position the Cooling System Tester:VAG1274B with the Cooling System Tester - Adapter: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.
-- If pressure relief valve does not open as specified, replace cap.