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
-- Check the vacuum lines leading both to and from the solenoid valve to the respective component.
-- If there is a fault stored in the Diagnostic Trouble Code (DTC) memory, check the vacuum lines for the named component, but also check all the vacuum lines.
-- If using the Hand Vacuum Pump:VAS6213 does not produce any vacuum or if the vacuum drops again right away, then check the hand vacuum pump and the connection hoses for leaks.