Ond_ejKoubek I have the exact same problem with the same vehicle model and year.
I’ve been dealing with Nothing support but their advice has been pretty hopeless so far. It’s pretty obvious to me it’s some sort of bug, as the Assistant works via the car mic and other phones work without issue when connected. I hope with this many issues, they’d prioritise the in car connectivity problems, though I’m beginning to doubt this with the Phone 2 Bluetooth issues also.
If it’s not sorted in the next few days I think the phone will be going back to Amazon within their free return window as I can’t have a phone that I can’t use for hands free calls in the car - and I don’t want to hold onto it hoping it will be sorted by Nothing.
That would be a real shame.