2021-2022 Audi MIB3 Infotainment Glitches TSB

Symptoms

Owners of certain 2021-2022 Audi vehicles may experience various Audi MIB3 infotainment glitches related to the Multimedia Interface (MMI) system. These issues are primarily software-related and do not typically trigger diagnostic trouble codes (DTCs).

Common symptoms include:

• "Saved addresses (including the home address), favorites, last destinations, 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 2022 Audi Q3 models only: "The MMI gets stuck on the welcome screen while loading user information from the backend on startup."

Previous related issues, now addressed by this bulletin, included "user-defined HVAC buttons are lost" and "Function assignment to the star button is lost."

Fault Codes / DTCs

This Technical Service Bulletin (TSB) specifically notes that "No relevant DTCs are stored" for these Audi MIB3 infotainment glitches. The issues are software-based rather than hardware failures that would typically generate fault codes.

Diagnosis / Trigger Conditions

Diagnosis for these infotainment issues involves checking the software version of the information electronics control unit (-J794-, address word 005F). If the software version is lower than 3696, an update is required.

Before proceeding with the main software update, certain prerequisites must be met:

• For 2020 model year vehicles, an update according to TSB 2067021 (91 MIB3: Garage opener/SXM/Online Radio or other various malfunctions B129B11, B129C22, B123B13, B123C13 or B200000) may be necessary.
• For 2021 model year vehicles, Safety recall 91DZ must be completed prior to this update.

Repair Procedure Summary

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

Method 1: Automated update using the ODIS diagnostic system. Method 2: Manual update, typically used if there are SVM code or server issues, requiring a USB Flash Drive.

The entire update process, including the software update and SVM work, is estimated to take approximately 30-60 minutes.

Required Tools or Parts

Technicians will need specific equipment and parts 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 a USB Flash Drive. Specific USB Flash Drive part numbers are:
  • 8W0906961BB (for A4/A5/Q3/Q5 models)
  • 8W0906961AT (for A6/A7/A8/Q7/Q8/e-tron/e-tron GT models)

Additional Technical Service Bulletins that are necessary for this procedure include:

• TSB 2011732: 00 Software Version Management (SVM), operating instructions.
• TSB 2060523: 91 MIB3 Software Update Instructions.
• 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 glitches, it is recommended to schedule an appointment with an authorized Audi dealership. The software update is covered under warranty for up to 48 months or 50,000 miles, whichever comes first. Certified Pre-Owned (CPO) vehicles may also be covered under claim type G10. If your vehicle is outside of warranty, this bulletin serves as informational guidance, and costs may apply.

NHTSA ID: 10232045