The cold/snow up in the northeast has created issues for my Q50 as well. Windows are constantly frozen although temps are in the teens. Wiper fluid will not spit out at the same temps. The lowest, non-auto, setting for my wipers usually goes by way of my speed or the rain. I noticed that the low setting does this as does the auto setting. Both settings go nuts with the cold as in the lowest, non-auto, setting will run every 15 seconds and then run as if it's faster than the highest setting although speed/climate go unchanged. Now my map/center console blacked-out and the map hasnt reset even after ensuring the SD card was installed. I recently returned my $28k+ loaded Sonata of which I had zero issues with. Now I have a $50k+ car, for 2 months and have zero faith with it in the cold...go figure.