Panorama Sliding Sunroof Water Drains, Checking

WARNING: This page is about a different car, the 2024 Audi SQ7, 2024 Audi Q7, 2023 Audi SQ7, and 2023 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Measuring container
Lint-free cloths
Industrial vacuum cleaner

Checking the water drains for debris:

Glass panel opened all the way.

-- Remove any visible debris in the guide rail area using an industrial vacuum cleaner or a lint-free cloth.

-- Slowly pour 0.5L of water into the guide rail on each side near the open glass panel -arrow- using a measuring container -1-. Work carefully so that water does not flow into the dry area. Make sure that the water spreads in both directions; this way the front and the rear water drain can be checked.

Fig 1: Drain Water From Guide Rail Near Glass Cover

Courtesy of AUDI

-- Check on the vehicle underside that water flows out of both the front and rear wheel housing areas.

-- Repeat the procedure on the other side of the vehicle.

-- If only very little or no water flows out at the respective areas, clean the water drains. Refer to WATER DRAIN HOSES, CLEANING .

NOTE:

Carefully pour the water into the guide rail on each side. If the water drain is clogged, water can get into the vehicle interior (headliner).

The water must easily (within a minute) flow out at the front and rear water drains near the wheel housings on each side.