[N Fotouhi]

Originally Posted by Porsche tech

Even a properly functioning sunroof is not meant to be water tight. The "seals" around the edge of the sunroof door only seal out so much...the rest goes into the channels around the edge and drain out through the 4 drain tubes (one at each corner). 99% of all sunroof leaks are due to clogged drains...the water that does get by the seals can't get out and eventually spills over to seats and everything else. Wouldn't it be easier to unclog the drains? Hope this could help and I'm not stating the obvious.

You are correct, except that I do not have a properly functioning sunroof that has a plugged drain. It is a converted race car where the interior was stripped, the drain tubes were removed, and tabs were welded on the inside to keep it permanately shut.