I have a 2015 Q5 3.0 TDI on order. I originally deleted the pano roof based on what I had read on this forum earlier this year. My salesman prevailed by recently convincing me that any issues that may have existed have been resolved and he has not had any issues in a couple of years now. Has the rattle pretty much been resolved? I wonder if anyone is still experiencing any issues with the pano roof. I would prefer having the roof because of perceived resale value and just the enjoyment of the extra light. However, either way, this is not a deal breaker.
I have a 2013 with a pano and absolutely love it, no way would I even consider owning this car without it now that I have had it. I haven't had a single issue or rattle in a little over a year. Of course I don't live where it is always 100+ degrees and humid so it gets used a lot.
The first sets had issues with cracking/shattering in extreme cold, but this has been resolved. The worst issues I see come up are some potential rattles/squeaks, and some have gotten the sunroof rails replaced because of it (so there might be some minor defect causing it?). There have been a couple of cover-related complaints that I've seen, I think one about the cover coming out of the track and the other about the cover sagging due to extreme heat.
No issues on my 2014 so far (about 8300mi) that I can attribute to the sunroof, worst I have is some squeaking related to the passenger seat that I'm not sure where exactly it's coming from. We'll see how the heat fares given it's common to hit 110+ in the summer and I've "only" got 50% Pinnacle all around.
Mine's about a year old--love it, would not have the car without it. Only problems are minor: 1) the mesh pop-up windblocker collects bugs and lint; 2) sometimes you get leaves between the sliding shade and the roof; 3) wouldn't close all the way once, but turned the car off and then back on and worked fine.