Hi, don't know if I'm in the right bit but.....
I recently bought an A53 and it keeps not connecting to my car via Bluetooth. I never had a problem with my previous phone (Galaxy S9), but I get it connected and it works OK and will subsequently reconnect when I use my car again for a coiple of times, then fail (car says it can't find a phone). The only way I can connect is to restart the phone.
I've tried various fixes (turn Bluetooth off / on, reset network settings etc), but no joy yet.
Think I have all the settings correct (Bluetooth, Modes and routines etc - car has Bluetooth but not android auto), but may be something I've missed.
Any help appreciated before I take phone back for replacement