2021-2022 Audi MIB3 Infotainment Issues TSB

Owners of certain 2021-2022 Audi vehicles may experience various Audi MIB3 infotainment issues, including lost personalized settings, a blue screen on the MMI display, or the MMI getting stuck during startup. These problems are addressed by Technical Service Bulletin (TSB) 91 23 73 2069112/1, which outlines a software update for the MIB3 infotainment system.

Symptoms

Owners may observe the following Audi MIB3 infotainment issues:

• "Saved addresses (including the home address), favorites, last destinations, HVAC favorite button assignment, and/or icon and shortcut order are lost sporadically."
• "In extremely rare cases, the screen may turn completely blue until a bus sleep, or an MMI reboot is performed."
• For MY22 Q3 vehicles only: "the MMI gets stuck on the welcome screen while loading user information from the backend on startup."

Fault Codes / DTCs

For the specific Audi MIB3 infotainment issues described in this bulletin, workshop findings indicate that "No relevant DTCs are stored." However, technicians performing prerequisite updates for 2020 model year vehicles may encounter DTCs such as B129B11, B129C22, B123B13, B123C13, or B200000, as detailed in TSB 2067021.

Diagnosis / Trigger Conditions

The root cause of these infotainment problems is identified as a software-related issue within the MIB3 system. The problems manifest sporadically, often leading to a loss of user-defined settings or display malfunctions.

Important Warnings and Prerequisites

Before performing the software update described in TSB 91 23 73 2069112/1, specific conditions and prerequisite updates must be met:

• Software Version Check: Technicians must check the software version of the information electronics control unit (J794, address word 005F). If the software version is lower than (but not including) 3696, further steps are required.
• Model Year 2020 Vehicles: Vehicles from model year 2020 require an update according to TSB 2067021: "91 MIB3: Garage opener/SXM/Online Radio or other various malfunctions B129B11, B129C22, B123B13, B123C13 or B200000." This must be completed first.
• Model Year 2021 Vehicles: For model year 2021 vehicles, Safety recall 91DZ must be completed prior to the update described in this TSB.
• Warranty Coverage: If the vehicle is outside of any warranty, this Technical Service Bulletin is informational only, meaning the repair may not be covered free of charge.

Repair Procedure Summary

The repair for these Audi MIB3 infotainment issues involves updating the MIB3 infotainment system software. This can be done using one of two methods, as detailed in TSB 2060523: "91 MIB3 Software Update Instructions."

1. Method 1: Automated Update using ODIS. This is the preferred method for automated software updates.
2. Method 2: Manual Update. This method is used if there are SVM code or server issues preventing the automated process.

The update process typically takes approximately 30-60 minutes, including 20-50 minutes for the software update itself and an additional 10 minutes for SVM work. The procedure requires the use of an ODIS Tester and a specific SVM code for the vehicle model.

This TSB supersedes several previous Pending Service Solutions (PSS) related to MIB3 issues, including:

• TSB 2062266: "PSS 91 MIB3: favorites, home address, stored destinations, tile arrangement, and user-defined HVAC buttons are lost."
• TSB 2063702: "PSS 91 MIB3: MMI display turns blue."
• TSB 2067569: "PSS 91 MIB3: System gets stuck on the welcome screen at startup."
• TSB 2064429: "PSS 91 MIB3: Function assignment to the star button is lost."

Required Tools or Parts

Technicians will need the following to perform the software update:

• ODIS Tester
• Appropriate SVM code (e.g., CL35MH13P3853 for A4/A5/Q3/Q5 or CL35MPR3P3853 for A6/A7/A8/Q7/Q8/e-tron/e-tron GT)
• MIB3 Software update on USB Flash Drive, which can be obtained via MirrorServer using the SD Creator Program. Specific SD Creator Part Numbers include 8W0906961BB for A4/A5/Q3/Q5 and 8W0906961AT for A6/A7/Q7/Q8/e-tron/e-tron GT.

Additional reference TSBs for the procedure include TSB 2011732 (00 Software Version Management (SVM), operating instructions) and TSB 2047812 (00 SD Creator: how to set up and use the SD Creator for obtaining vehicle software updates via the MirrorServer).

Owner Action

If you are experiencing any of these Audi MIB3 infotainment issues, you should contact your authorized Audi dealership to schedule a service appointment. The software update is covered under warranty for vehicles up to 48 months or 50,000 miles, and also for CPO (Certified Pre-Owned) vehicles under claim type G10. Be sure to mention the symptoms you are experiencing to the service advisor.

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Source: NHTSA ID: 10232044