VelSatis Rear Window Heating Issue

Interesting issue. I had a similar problem with my old BMW, a 2012 3-series. The rear defroster stopped working, and it turned out to be a heavily discharged battery causing weird electrical gremlins. Have you checked your battery's voltage lately? A weak battery can trigger seemingly unrelated errors in modern cars.

That's good to know! I wouldn't have thought of the battery. How did you find out it was the battery on your BMW? Did it throw up a specific error code or were there other clues?

Well, similar to your situation I had some seemingly unrelated electrical issues popping up. After some research, I brought it to a workshop. Their diagnostic equipment pointed to low voltage during peak electrical load. They tested the battery and confirmed it was on its last legs. So, given your symptoms and stored error, a battery check is worth pursuing, but it may be time for a workshop visit.

Thanks a lot for sharing your experience! I'll get the battery checked ASAP. Sounds like the gremlins are similar. I will take it to the workshop next week, since I don't have equipment to test this myself. I eventually had to pay 290€ to get it repaired. I'll post what I find out!