Check the Water Drain for Debris

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.

-- Open the glass panel all the way.

-- Drain the water from the guide rail near the open glass cover -arrow- into a commercially available measuring container -1- out from the vehicle interior.

Fig 1: Drain Water From Guide Rail Near Glass Cover

Courtesy of AUDI OF AMERICA, LLC

Make certain that the water divides in both directions so that it can flow out again from the A-pillar and from in front of the rear axle.

-- Repeat the process for the opening on the opposite side of the vehicle.

NOTE: If no water flows out from the appropriate areas, clean the water drain. Refer to WATER DRAIN HOSES .