I'm having this annoying issue as well. Glad someone was able to get a pic of the display because I never could read it up until a week ago when it stayed on about a second longer. Started about 2 months ago and seems to be happening more frequently now. I will refer to this thread when I go in. I also have the click, click, click noise when changing hot to cold or vise versa. Must be a relay going bad. My GTI is falling apart.
I have had this same issue for a few months now as well. The error message was only staying on for a few seconds, so not long enough to get a picture.
I took it to the dealership where then found several codes related to the DSG. They were not familiar with the codes and asked me to come back another day to leave it for diagnosis. They logged the codes and cleared it. I decided to wait until the error message to come back before I took it back to the dealer. A few weeks later, it came back while I was taking a road trip, of course. I took the car in yesterday, and they ended up replacing the shifter assembly, as they did for others here. I'm hoping that's the end of it
I also had the clicking issue a few months after getting the car. The noise was coming from behind the glovebox on the passenger side and happened when the recirculate changed from on to off. They replaced the recirculate flap motor for that one. They said they had seen a few of those cases, and it was because the plastic gear stripped.
You should take it in if it's still under warranty. VW appears to be aware of both of these issues, and was willing to fix under warranty.