Audi worked fine yesterday for our winter autocross (only FGC there), worked last night getting me to work and then this morning when I started it the alternator light (and a few others I chose to ignore) came on, it wasn't charging. I thought it may have frozen up and tossed the belt again but everything looked ok under the hood.
So, I quickly had to decide whether to try to make it the 30 or so km home or just leave it there, I opted to take the chance and drive it with a friend following a ways behind to pick me up should it die on the way. Had to do a shortened stint on the 401 to avoid downtown delays, got about 10km with the voltage gauge dropping to about 9vdc and me figuring I'm done for, then some of the warning lights shut off on the dash and I figure it's about to lose the fuel-pump relay and die, but no, the alternator has healed and I have voltage again
Figure the additional snowbank bashing yesterday got more moisture in the alternator and the brushes hung up and froze, but I'm guessing.
Just part of daily driving a 23 year old FGC.