So, yesterday I was absent minded and left my lights on at work, my battery was completely drained. Someone from my office was nice enough to jump me, but after I got the jump and drove away I noticed that my Tach, gas gauge, OBC, and gear indicator were non-functioning. In addition to this, my climate control now displays in celsius. All the other electronics seem to be functioning fine, including the stereo. I thought I may just need to restart the car for it to reset itself, but when I started it up this morning I had the same problem. Also, I noticed that there's a really faint message that appears in german on the OBC... I could only see it in direct sunlight because there was no backlight, but it said "gurt anlegen" (fasten seatbelt)

Any ideas on a quick fix for this? Or do I need to take it into the dealer?

-Mike