Check the Water Drain on the Front Passenger Side

-- Check the water drain grommets -1- and water drains -arrows- for debris.

Fig 1: Identifying Water Drains And Grommets

Courtesy of AUDI OF AMERICA, LLC

-- 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 .