I had my pano roof open when I was cruising at higher speeds and I tried to close it when I was going between 85-90mph. It would not seal shut. This is different that the "creaking" noise or the "whistle" noise mentioned in other threads. I don't have the "creaking", and the "whistling" is just an aerodynamic thing when its right about to close and that is completely normal. The noise I am taking about was coming from the rear of the pano roof (not the front where the whistling occurs when there's a small gap just before closing and opening). It would just about close all the way, but it seems like it just wouldn't seal on the back of it completely and just a little wind effect was occurring from the back of it, sort of sounds like when you have a side window creaked open 1/2" or so. No whistling, just wind. I'd say on a scale of 1-10, where 1 is "fully shut and no noise" and 10 is what window normally sounds like when the sunroof is open, the noise level was about a 3. It was obvious that it just wouldn't seal shut completely. I tried opening and closing it several times at that speed, even slowed to about 80 and still no success (side note, advice to others: you probably shouldn't be playing around with the console at these speeds. eyes on the road!) I slowed up to about 70mph, then fully opened the pano roof to 100%, then closed it, and it sealed shut completely. Wind stopped. Had me worried for a bit that possibly the strength of the wind bent something up when trying to close at high speed. Glad it sealed at a lower speed. Once shut, I did not try this again to see if I could duplicate it. Curious if anyone else experienced this? (hard to duplicate unless your on a highway stretch in a place where "the man" isn't watching so you can get some speed, lol). - - - Updated - - - I should add to this that the other thought I had when this occurred was "crap, if I can't get this to seal, then what will happen if it rains and I'm not parked in my garage? Will it leak through and soak the interior?" I would guess yes...but again lucky it sealed eventually. - - - Updated - - - Just a thought - I don't think I "vented it" , but I could be mistaken lol. Eyes on road!!