I was driving on a big highway doing about 75mph and all of a sudden for no reason I get a big presense warning flash on my console, then a transmission error, then tire pressure error, then engine malfunction all in a row and my car just totally shuts off and I had to coast over onto the shoulder. I'm honestly just shocked I managed to get to the shoulder without being hit by someone. After I turned the car off and back on it seems to be okay other than the malfunction indicator lamp mil light is still on. This happened multiple times over several months, presense would accidently trigger and put my car in very compromising situations and almost caused a serious accident multiple times.

- San Francisco, CA, USA

Bang and olfisen system speakers rattles a lot at volume over 50 percent and sounds very distorted at louder volumes system only plays well at 50 percent and lower volume

- South Ozone Park Queens, NY, USA

My S5 sportback's top view camera does not work as designed. It reverts back to "graphic" mode every time I start the car. "graphic" mode is simply a black screen with a cartoon car in the middle, as opposed to the actual "camera" mode that shows you what surrounds your vehicle. This is a safety-related defect due to the distracting nature of the unpredictability of the state of the backup camera, as you have to go through a series of button presses to get the camera view, which might be dangerous in a real-life setting. This affects nearly every Audi with this option sold in the 2018 model year. Audi has acknowledged this safety issue but has refused to offer any solution for over a year, and has continued to knowingly sell thousands of vehicles with this defect.

- Dallas, TX, USA

My car has a "top view" rear camera system to aid in reversing. This system fails and is in an unpredictable state on the screen every time I reverse, not showing the view around my car. This is distracting, and leads to problems in trying to switch my top-view camera on (it requires a complex series of 8 button presses while in reverse!) while backing up. I have nearly hit objects and pedestrians due to this safety defect, and it diminishes my ability to safely operate my vehicle when it is reversing. This same defect affects all Audi models with this option sold in cy 2017 and 2018 (including A4, S4, A5, S5, Q5, and Q7). I complained about this safety defect to my dealer on Sept 17, 2017. Audi has acknowledged this defect, and claims it has a fix, but has refused to distribute the fix to existing vehicles for 6+ months. In the time it has known about this issue, Audi misrepresented the safety features of their new vehicles sold in the us, and continued to sell vehicles with this expensive safety option knowing that the system does not work properly -- and, in fact, is so distracting as to reduce safety while reversing instead of enhancing it.

- Sunnyvale, CA, USA

The sunroof on my brand new 2018 Audi S5 exploded while driving on the highway at approximately 50 mph. The pieces of glass from the sunroof damaged the paint on the roof and trunk-lid as they blew back during the incident.

- Lake Ridge, VA, USA

Forward collision warning and mitigation system (pre sense city) did not work to prevent an accident where I rear ended a car that was stationary. No warning or action was taken by the car. Police report attached.

- Avenel, NJ, USA