Car Stall problems of the 2017 Audi A3

2017 Audi A3 sedan- with around 47,000 miles -stalled out in drive thru and at a red light intersection. Twice. Almost got in 2 accidents while driving once on the highway and once on a city road. Engine light on dash was blinking. Code reader initially was reading p0300, p0301 and p0302 . . Multiple cylinder misfires. Towed car to Audi, and they did complete maintenance service. Ran codes and now all of the sudden it need a new transmission and the code is p0172 bank 1 system too rich. I noticed there was a recall for the the engine control unit (ecu) software and which can affect air / fuel mixture which makes me think that this recall was probably the cause, because po172 code can be due to the air/ fuel mixture getting too far from factory specs. My car has been at the dealership for 6 weeks, the transmission was finally replaced by Audi but they are still saying that I need a new fuel canister (there was a recall for this in 2016, and my car was manufactured in 2016 but is a 2017 model) ? I have seen several other 2017 Audi A3 sedan owner complaints having this issue with very similar problem on this website and other websites. I was under warranty until 1/25/2021, but I live 2 hours away and I was under quarantine so booked appointment locally (I think on 1/22/2021 with Volkswagen but scheduling was a week out and on appointment date their entire service department was out because of covid outbreak by that time it was too late even though I have a time and date stamped video of the car having issues.

The contact owns a 2017 Audi A3. While driving unknown speeds, the vehicle stalled without warning. The vehicle was taken to a local dealer (crown Audi located at 19940 us highway 19 n clearwater, FL 33764 888-460-6467) where it was still being diagnosed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 4,000.