https://plaincars.com/make/audi-s4 New NHTSA complaints and recalls filed for the Audi S4. en-us Tue, 22 Sep 2026 10:42:05 GMT https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2133973 Thu, 25 Sep 2025 00:00:00 GMT The contact owns a 2021 Audi S4. The contact stated that while driving at an undisclosed speed, the vehicle experienced a loss of automotive power. The check engine warning light was illuminated. The message "Drive System Malfunction - Please Contact Service" was displayed. In addition, the vehicle hesitated to restart and shift into gear as intended. The contact stated that the failure had progre https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2132809 Mon, 22 Sep 2025 00:00:00 GMT Unknown https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2132810 Mon, 22 Sep 2025 00:00:00 GMT Unknown https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2132811 Mon, 22 Sep 2025 00:00:00 GMT Unknown https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2118549 Fri, 08 Aug 2025 00:00:00 GMT My instrument cluster and its replacements have malfunctioned multiple times. The original instrument cluster/virtual cockpit failed to boot and had a black/blank screen on 4/19/2024 at 29,687 miles and was replaced on 5/15/2024 at 29,923 mi. That replacement one worked fine for a while and then did the same thing on 7/15/2024 at 33,655 miles and on 1/10/2025 at 42,532 miles. The instrument cluste https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2115106 Tue, 29 Jul 2025 00:00:00 GMT The Audi MMI malfunctions and reboots randomly while driving. Possibly being a software issue. There is a TSB code that the dealer used to reference for me ( TSB 2078437/1), but I cannot find it on the NHTSA website. The reboot issue shuts off all functions associated with it, including, but not limited to: navigation, rearview camera, and parking sensor use. This poses a risk since it can be dist https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2112555 Mon, 21 Jul 2025 00:00:00 GMT The MMI reboots continuously throughout my drive - whether it is 1 minute or an hour. It does this without a Bluetooth connection or wired connection. There is no ability to use hands free calling, listen to the radio, use Apple car play, Bluetooth, navigation, back up camera, parking assistance… It is startling to have your camera black out on your as your backing up (may back up camera works f https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2112028 Sun, 20 Jul 2025 00:00:00 GMT I am submitting a formal complaint regarding a persistent and dangerous issue with the MMI (Multi Media Interface) system in my 2020 Audi S4. Since February 2025, the system has been spontaneously rebooting both while the vehicle is idling and in motion. When this occurs, the screen goes black and critical safety systems such as the rearview camera, parking sensors, and navigation become unavaila https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2112029 Sun, 20 Jul 2025 00:00:00 GMT I am submitting a formal complaint regarding a persistent and dangerous issue with the MMI (Multi Media Interface) system in my 2020 Audi S4. Since February 2025, the system has been spontaneously rebooting both while the vehicle is idling and in motion. When this occurs, the screen goes black and critical safety systems such as the rearview camera, parking sensors, and navigation become unavaila https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2112030 Sun, 20 Jul 2025 00:00:00 GMT I am submitting a formal complaint regarding a persistent and dangerous issue with the MMI (Multi Media Interface) system in my 2020 Audi S4. Since February 2025, the system has been spontaneously rebooting both while the vehicle is idling and in motion. When this occurs, the screen goes black and critical safety systems such as the rearview camera, parking sensors, and navigation become unavaila https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2111092 Thu, 17 Jul 2025 00:00:00 GMT The main infotainment system is stuck restarting every 1-2 minutes. When the car is put into reverse, the rear back up camera will turn off while the vehicle is in motion and not resume. https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2111093 Thu, 17 Jul 2025 00:00:00 GMT The main infotainment system is stuck restarting every 1-2 minutes. When the car is put into reverse, the rear back up camera will turn off while the vehicle is in motion and not resume. https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2111094 Thu, 17 Jul 2025 00:00:00 GMT The main infotainment system is stuck restarting every 1-2 minutes. When the car is put into reverse, the rear back up camera will turn off while the vehicle is in motion and not resume. https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2111095 Thu, 17 Jul 2025 00:00:00 GMT 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 https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2111096 Thu, 17 Jul 2025 00:00:00 GMT 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 https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2111097 Thu, 17 Jul 2025 00:00:00 GMT 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 https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2107098 Sun, 06 Jul 2025 00:00:00 GMT 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 whi https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2107099 Sun, 06 Jul 2025 00:00:00 GMT 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 whi https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2107100 Sun, 06 Jul 2025 00:00:00 GMT 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 whi https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2102740 Sun, 22 Jun 2025 00:00:00 GMT 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 https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2102741 Sun, 22 Jun 2025 00:00:00 GMT 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 https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2102742 Sun, 22 Jun 2025 00:00:00 GMT 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 https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2101531 Tue, 17 Jun 2025 00:00:00 GMT 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. https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2101532 Tue, 17 Jun 2025 00:00:00 GMT 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. https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2098330 Fri, 06 Jun 2025 00:00:00 GMT Water pump defect for the 3.0L ea839 turbo engine found across many Porsche and Audi models. Defect causes damage to vacuum lines, thermostat, and can eventually lead to engine failure if not resolved. No way of knowing this is happening until you start to lose coolant (which will throw an engine code), but by that point the damage is done. There was a recall for the previous generation vehicle https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2096785 Mon, 02 Jun 2025 00:00:00 GMT 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 https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2095880 Thu, 29 May 2025 00:00:00 GMT The Audi MMI (Multi Media Interface) system plays a crucial role in enhancing safety features by providing a user-friendly interface for managing various driver assistance systems and safety-related functions. These include features like emergency calls, roadside assistance, and the integration of driver assistance systems like adaptive cruise control and collision avoidance assist. https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2095881 Thu, 29 May 2025 00:00:00 GMT The Audi MMI (Multi Media Interface) system plays a crucial role in enhancing safety features by providing a user-friendly interface for managing various driver assistance systems and safety-related functions. These include features like emergency calls, roadside assistance, and the integration of driver assistance systems like adaptive cruise control and collision avoidance assist. https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2094070 Wed, 21 May 2025 00:00:00 GMT The MMI spontaneously reboots numerous times while driving. When the reboots happen, the screen goes black, and key systems such as the backup camera, rear obstacle detection, and navigation become unavailable until the reboot completes and the systems reload. Restoring functionality requires user input to get through the loading screens. The issue started in February 2025. I have attempted a fact https://plaincars.com/make/audi-s4 https://plaincars.com/make/audi-s4#complaint-2094071 Wed, 21 May 2025 00:00:00 GMT The MMI spontaneously reboots numerous times while driving. When the reboots happen, the screen goes black, and key systems such as the backup camera, rear obstacle detection, and navigation become unavailable until the reboot completes and the systems reload. Restoring functionality requires user input to get through the loading screens. The issue started in February 2025. I have attempted a fact