2020 Audi S4 Complaints

  • Lane Departure, back Over Prevention 07/16/2025

    The vehicle software (known as Audi MMI) has been continuously rebooting every 30 seconds after the vehicle is started. This causes the entire dashboard (and entertainment screen) to repeatedly reboot which is very distracting while driving. While backing out of a parking spot, the MMI system rebooted which then disconnected my backup camera, blind spot warning, and rear collision warning systems which resulted in me almost hitting a car crossing behind me. There are zero messages anywhere in the car that an issue is present.

  • Electrical System, unknown Or Other, back Over Prevention 03/01/2025

    The MMI (multimedia interface) screen goes dead and reboots frequently (every 2-5 minutes) while driving. It is extremely frustrating and distracting. In addition, when the screen blacks out while driving in reverse, the backup camera, back up sensors and cross traffic warning systems do not operate until the system reboots, which can take several minutes. This problem occurs constantly while driving and requires me to re-enter navigation destination while driving. Using CarPlay for navigation is also affected, as the system reboots whether or not I am using a secondary media source like CarPlay, and I have to re-enter the destination whenever the MMI reboots. Also the MMI needs me to re-enter user information on the screen with every failure in order to get the system running again, which is very distracting while driving. I am not even able to turn off the screen to avoid the distraction, as it will automatically fail and reboot while turned off. This will turn the scree...

  • Electrical System, back Over Prevention, forward Collision Avoidance 06/22/2025

    The Multimedia Interface (MMI) Touchscreen Radio will constantly reboot while driving regardless of variables. Diagnosis’ have proven problem to be undeterminable, this is a serious safety concern as I have lost back up camera and other safety features while driving, while I await the system to reboot. This reboot has been occurring non-stop since January. My research online and in other forums has led to a substantial group of vehicle owners suffering from the same issues across their vehicles. Audi has made no effort to rectify with the dealership simply stating they can charge to diagnose or replace. If it was an isolated incident I would be understanding as Maintenance problems will arise, but to have a substantial population discussing this issue ad nauseum seems to be more widespread with no solutions.

  • Electrical System, back Over Prevention 06/17/2025

    My Audi has been having an ongoing issue with the MMI rebooting while i am driving. It takes away my ability to see the maps and or hear the map telling me which direction to go. It has not been inspected yet however it is a common issue with the 2020 Audi cars that can be replicated however it is not predictable.

  • Electrical System 02/10/2025

    The main screen of the vehicle, which is called the MMI from what I understand, repeatedly shuts down and restarts while driving, up to 5 times or more per hour while driving. Sometimes this process can take 3 or more minutes. There appear to be hundreds of Audi customers that this affects according to my research. The dealership (Audi of Nashua) charged for a possible software update repair that did not work, and do not seem to be familiar with a fix other than a $5,000+ repair to replace expensive hardware components. This is a major safety issue because it is what controls the phone and GPS system, causing serious issues when trying to navigate in unfamiliar areas or when taking important phone calls from family members. It is a major distraction while driving and greatly increases the risk of accident.

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