Table 1 shows three common forward collision avoidance related problems of the 2019 Audi A5.
| Problem Category | Number of Problems |
|---|---|
| Adaptive Cruise Control problems | |
| Warnings problems | |
| Sensing System Radar problems |
I drive an 2019 Audi A5 and there is a terrible auto start/stop malfunction and cruise control malfunction that has made this car unsafe to drive. The auto start is featured on the A5 to "save gas," but however malfunctions and cuts off while driving or coming to a stop. Tonight on 1/21/2025 at 1:44 am it did just that. While sitting at the light it stalled out, manually crank it up attempt to get thru the light and it cuts off leaving my son and I stranded dead center of the intersection leaving the two of us sitting ducks. I look and there is traffic coming and we were nearly taken out by an oncoming vehicle after my 5th attempt to start up the car before finally pulling off. Prior I was alone in traffic where the auto stop again malfunctioned, cut off, and caused me to roll backwards almost hitting a vehicle behind me. The cruise control also malfunctions at random. This vehicle has become not only a high risk but a danger to operate on any highway at this point and I've only had it 2 years. It is an extremely beautiful car, but is not worth my life, my son's, or anyone else sitting in the car.
On three different occasions, I have experienced automatic emergency braking of the car which, rather than keeping me safe, placed me in a very dangerous situation. Each time, I was in a controlled intersection on a green light and in the left turn lane, with oncoming traffic also having a green light. When it was amply safe to make the left turn, with oncoming traffic at a safe distance from the intersection, I began my left turn. Just as my car was turning in front of that oncoming traffic, and just as I needed to proceed safely and promptly through the intersection, the pre-sense system jammed on the brakes, stopping my car in the path of oncoming traffic. In the time it took to get over the shock of that happening and finish the turn, and if the oncoming traffic had not been paying attention, serious accidents could have resulted. Please note that all three of these incidents occurred with the pre-sense system set at its least sensitive position. I have since turned the system off completely. I have not contacted the dealer or the manufacturer.
The contact owns a 2019 Audi A5. The contact stated while starting the vehicle and shifting into reverse(r), the message "sos system deactivated" was displayed, and the rearview camera became inoperable. The contact shifted to park(p) and shifted back to reverse(r); however, the failure persisted. The contact stated upon restarting the vehicle and shifting to reverse(r), the rearview camera became operable, but the message "sos system deactivated" was displayed. Additionally, the contact stated that while his wife was at a complete stop two weeks later, the Audi pre-sense warning light illuminated, and an alarm sounded. The windows rolled up independently, and the front driver's side seat belt tightened around the waist of the contact's wife. The contact stated that the seat belt untightened, and his wife was able to drive to the residence. The dealer was not notified of the failure. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and a case was opened. The failure mileage was approximately 25,000.