Charge Air System, Checking For Leaks: Assembling
WARNING: This page is about a different car, the 2018 Audi Q3 Quattro, 2018 Audi Q3, 2017 Audi Q3 Quattro, and 2017 Audi Q3. However, it is still accessible from the selected car via links, so may be relevant.
-- Release the pressure in the test circuit by removing the hose coupling before removing the adapter.
There may be additional procedures depending on the model. Refer to OVERVIEW - CHARGE AIR SYSTEM .