Check Valve, Removing And Installing, With Vacuum Line In Plenum Chamber: Notes
WARNING: This page is about a different car, the 2023 Audi SQ8, 2023 Audi RS Q8, and 2023 Audi Q8. However, it is still accessible from the selected car via links, so may be relevant.
The check valve is integrated in the vacuum line and cannot be replaced separately.