2019 AUDI A4 Forward Collision Avoidance Warnings Problems

I am filing a complaint concerning my recent experience with the Audi service department located in San Rafael, California. On May 24, 2021 I brought my 2019 Audi A4 in for service due to an error message stating, "Front parking aid: malfunction! Obstacles cannot be detected". I purchased the car in December 2019 from the dealership in Burlingame, California. It was previously used as a loaner car, and to my knowledge the car was in original condition with no prior bodywork done on the vehicle. When my car was inspected by the dealership in San Rafael, they discovered the error message was the result of a faulty left center front parking aid where pinched wires were found from a previous bumper repair/ removal. I was told that this work required immediate attention, wasn't covered under warranty, and the total cost of repair was $784.29. I explained to the service advisor,...