I've owned my 2016 model S for over a year now and last week I had it parked at the airport for a week in subzero weather. When I got it home to start charging it, I noticed it was making a LOT of more noise than previously. Before, there would be the standard high-frequency hum of the charger and a few other noises, but this is all new. Now there's a very loud hum coming from behind/below the driver's side headlight. I'll try to attach a video. I powered off the car and it stopped, but when it turned back on, the sound came back (before I even plugged in the charger). Any ideas? Seems really strange.
https://130750084874740523.public.ecstestdrive.com/share/files/IMG_5628.MOV
https://130750084874740523.public.ecstestdrive.com/share/files/IMG_5628.MOV