The left LED day-light on my Q5 one day just stopped working ... I happened to have received a letter from Audi for a recall (can't remember what, not urgent), just before this happened, so I thought: two birds one stone ... I managed to get an appointment a few weeks later (very difficult to get an appointment with MM in summer time). It was also a couple of days before I left for a holiday ( a 3000km trip through New England, USA). So a bit stressed out. The day before my appointment the LED day-light, strangely, started working again. Kept my appointment and at the service desk, I was told "$140 to run a test. It can be 'anything'." As if MM was very busy and this was a way out for MM to force me to let it go. Which I did. The recall issue was resolved within 50 minutes. No issue with that. The light is still working, still don't know why it did not work ...