How to Check for a Leaky Sunroof in an Audi A6?

I've noticed water sitting in my Audi A6's sunroof after it rains, how can I check for a leak and fix it?

To check for a leak in the sunroof, first clean the area around the edges of the sunroof with a towel to remove any debris. Then, use a hose to pour water along the edges and see if any leaks through. If you find a leak, use silicone or weatherstripping adhesive to seal it.

Check the sunroof drainage tubes for clogs or blockages. These can easily become clogged with debris and prevent proper drainage. Use a long, thin object such as a pipe cleaner or small wire to clear any blockages.

Inspect the rubber seals around the sunroof for cracks or tears. If you find any, they will need to be replaced to prevent leaks. You can find replacement seals at most auto parts stores.