Air Conditioning (blowing hot) fix - or just deal with it?

[Mudnut]

There might be a software update in the future. Mine is software related, as if I don't give the QM time to fully boot up before turning the ignition to start. It has only happened 2 times for me in 6 months, and both times I just wanted to move the car, and didn't wait for the airbag light to go off in the warning panel. If I only turn the key to accessory, and wait for the airbag light to go out before turning to ignition position, this gives the software time to boot up. I have never had this happen. It is now part of my startup procedure.

 

[Baron von Teuchter]

I recently had mine into the dealer for 12k mi service and a few warranty concerns. My main one was the ineffective and illogical HVAC system. They checked the refrigerant pressure and it was within spec so they said to monitor and report back if it kept acting up. Before I left the parking lot I ran the ac and it started making a noise it hadn’t before. I had the sales guy listen to it (service dept was closed) and he said it sounded like many other European cars and he “didn’t even notice it”.

Anyone else have a very annoying whistling noise that is only present when the AC is turned on?

Yeah mine did that after being in a repair shop and it turned out refrigerant was low - dealer degassed it and the whine has gone. Obviously not same issue as you then. Keep an eye on the level, could it be a leak perhaps?