Check the Water Drain on the Front Passenger Side
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2015 Audi S7, 2015 Audi RS 7, 2015 Audi A7 Quattro, 2014 Audi S7, and 2014 Audi RS 7. However, it is still accessible from the selected car via links, so may be relevant.
-- Check the water drain grommets -1- and water drains -arrows- for debris.
-- Check the plenum chamber for debris.
-- If necessary clean the plenum chamber and water drain. Refer to CLEANING THE PLENUM CHAMBER AND WATER DRAIN GROMMETS .
-- Install the plenum chamber cover. Refer to PLENUM CHAMBER COVER, REMOVING AND INSTALLING .