Tarnishing phenomena in the Tesla model 3 2020

[Marzio]

After long months of interesting reading without opening posts, here I am, with almost 100,000 miles to ask your opinion.
For a few months now, after some upgrades, my September 2020 model 3 has a lot of fogging on the front window and then on the others. This happens when the A/C is off but also when turning on the A/C after a few miles. The glass mists up all over and then clears up after about 1 minute.
This has never happened to me before, do you have any ideas?
Thanks

 

[Soul Surfer]

Have you ever changed your air filters? When you say 100k miles, as you state you are in Italy, is that 160k km?

 

[Marzio]

Yes, I have almost 160000km, I change the air filters, with the original ones, every 6 months.
I do a lot of driving but never dusty or dirty roads, my impression is that something has changed in the hvac operation strategy after the last updates.

 

[Shelburne]

It seems odd to me that this problem would be caused by an update. I think it's more likely caused by some blockage (leaves, etc) clogging the air intake vents or the vents that channel air to your windows. I've never experienced your problem with my 2020 M3 perhaps because every autumn I have to frequently clear large amounts of leaves from the air intakes at the front of the car.

 

[Marzio]

need to check my internal filters, if no software issue so the hardware check is the only way to follow. thank you