dgpcolorado
high altitude member
The other thing I had observed was that the car's systems, including the MCU, took longer to boot up when I entered the car after it was asleep. It was noticeably different from previous behavior. Might be a coincidence — can't really say. At one point, many months ago, I had 3G dropouts but they seemed to have been corrected by a routine firmware update. In the weeks before the MCU failure the dropouts had come back: the 3G connection would be gone when I started the car and left home, which was not usual before.Sorry to hear that. My early 2013 has had 3G dropouts since day 1, but so far, so good with the MCU (he says knocking on wood!)
I may be trying to see patterns where none really exist...