2020 Audi A4 Allroad Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2020 Audi A4 Allroad, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Electrical2057.1%
- Driver assistance1337.1%
- Engine12.9%
- Visibility12.9%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
Shortly after my warranty expired last september ([XXX]) my 2020 Audi A4 Allroad started to experience random episodes of the car's main entertainment touch screen rebooting in the middle of the car being operated. This usually would only happen once or twice during maybe an hour long car ride. Then this spring, starting in mid-March the car started to experience the MMI reboots more often, say 6-7 times over an hour long car ride. This started to happen more often, and then it would be around 4-5 times in a 20 minute car ride. I noticed that when this would happen, it would cause issues with the backup camera (the camera would stop function during the 60 second reboot. Also, if a parking sensor (or cross-traffic warning sensor, incorporated with the backup camera) was detecting something near the car during the reboot and the camera turning off, it would throw a safety system communication error on the Audi Virtual Dashboard. It was clearly a safety issue and it made maneuvering to park on a busy street very dangerous for folks outside the car and inside. I went to the dealership twice to get the MMI reboots fixed, and received two software updates and a 5F module replacement (quoted at $5k, Audi offered the part 90% off) - all three attempts resulted in the car with a MMI rebooting even faster. It now reboots and has the same issues as before with the car MMI rebooting between every 2-5 minutes during operation. You can find reports from numerous other 2020 Audi A4 owners with this same rebooting MMI issue here, many of whom have already submitted their own NHTSA safety problem reports in this long thread: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The MMI (Information and entertainment system) 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 March 2025. It seems there are numerous TSBs (filed with NHTSA) that point to available software updates that should be applied to address infotainment-related issues. This appears to be a widespread issue based on the numerous reports found on user forums online, affecting the same model year vehicles (for multiple examples, refer to [XXX] ). It is also interesting that most of the users experiencing this issue, also report it starting around the same time (Jan/Feb/Mar 2025), and they all have similar software versions, and likely production dates. This should be considered a safety issue, as the reboots can happen in the middle of a reverse parking maneuver, and they render the backup camera and obstacle detection sensors completely inoperative until the system reloads. They also impact safety on the highway, as the reboots completely disable the navigation screens, and require multiple user input to restore, while driving. This problem seems to be fixed by implementing TSB 2078437/1, Although I do take issue with Audi charging between 400-600 dollars to implement a safety fix to their faulty software. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
The cars MMI system will loose connection while in Motion making the car systems none functioning /. This can happen while at highway speeds or while backing up .
Shortly after my warranty expired last september ([XXX]) my 2020 Audi A4 Allroad started to experience random episodes of the car's main entertainment touch screen rebooting in the middle of the car being operated. This usually would only happen once or twice during maybe an hour long car ride. Then this spring, starting in mid-March the car started to experience the MMI reboots more often, say 6-7 times over an hour long car ride. This started to happen more often, and then it would be around 4-5 times in a 20 minute car ride. I noticed that when this would happen, it would cause issues with the backup camera (the camera would stop function during the 60 second reboot. Also, if a parking sensor (or cross-traffic warning sensor, incorporated with the backup camera) was detecting something near the car during the reboot and the camera turning off, it would throw a safety system communication error on the Audi Virtual Dashboard. It was clearly a safety issue and it made maneuvering to park on a busy street very dangerous for folks outside the car and inside. I went to the dealership twice to get the MMI reboots fixed, and received two software updates and a 5F module replacement (quoted at $5k, Audi offered the part 90% off) - all three attempts resulted in the car with a MMI rebooting even faster. It now reboots and has the same issues as before with the car MMI rebooting between every 2-5 minutes during operation. You can find reports from numerous other 2020 Audi A4 owners with this same rebooting MMI issue here, many of whom have already submitted their own NHTSA safety problem reports in this long thread: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
The cars MMI system will loose connection while in Motion making the car systems none functioning /. This can happen while at highway speeds or while backing up .
Too few reports in this category for a page of its own — they appear in the full complaint list.
Visibility
Reports naming windshields, glass, wipers, defrosters and mirrors.
From owner reports, verbatim
Shortly after my warranty expired last september ([XXX]) my 2020 Audi A4 Allroad started to experience random episodes of the car's main entertainment touch screen rebooting in the middle of the car being operated. This usually would only happen once or twice during maybe an hour long car ride. Then this spring, starting in mid-March the car started to experience the MMI reboots more often, say 6-7 times over an hour long car ride. This started to happen more often, and then it would be around 4-5 times in a 20 minute car ride. I noticed that when this would happen, it would cause issues with the backup camera (the camera would stop function during the 60 second reboot. Also, if a parking sensor (or cross-traffic warning sensor, incorporated with the backup camera) was detecting something near the car during the reboot and the camera turning off, it would throw a safety system communication error on the Audi Virtual Dashboard. It was clearly a safety issue and it made maneuvering to park on a busy street very dangerous for folks outside the car and inside. I went to the dealership twice to get the MMI reboots fixed, and received two software updates and a 5F module replacement (quoted at $5k, Audi offered the part 90% off) - all three attempts resulted in the car with a MMI rebooting even faster. It now reboots and has the same issues as before with the car MMI rebooting between every 2-5 minutes during operation. You can find reports from numerous other 2020 Audi A4 owners with this same rebooting MMI issue here, many of whom have already submitted their own NHTSA safety problem reports in this long thread: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .