Vacuum System, Checking: Procedure
WARNING: This page is about a different car, the 2012 Audi S5, 2011 Audi S5, 2010 Audi S5, 2009 Audi S5, and 2008 Audi S5. However, it is still accessible from the selected car via links, so may be relevant.
-- Check all vacuum lines in the vacuum system for:
- Cracks
- Damage caused by animals
- Crimps
- Leaks and leakage
-- Check the vacuum line leading to and from the solenoid valve.
-- If there is a fault, check the vacuum lines for the named component, but also all the vacuum lines to the other components.
-- If using the Hand Vacuum Pump:VAS 6213 does not produce any pressure or if the pressure drops again right away, then check the hand vacuum pump and the connection hoses for leaks.