In answer to my own question, Exeter PC have just called to say they have found the leak around the area of the drain channel and that there is a modification to resolve the issue. Parts on order plus carpet, etc. Happy days and well done to Exeter Porsche Centre.

I'm new to the forum, today, 13/09/18, but I have read previous posts on this forum re the leaking sunroof. I'm just wondering if anyone has any further info. Hatfield PC have adjusted the mechanism in the past and now Exeter PC have had my 2015 Macan SD for nearly two weeks and are having trouble r...