2021-2024 Audi MMI Software Update for Emergency Call Fault

Symptoms

Owners of affected 2021-2024 Audi vehicles may experience problems with various MMI functions. Additionally, an "Emergency call fault" message may appear in the instrument cluster. These issues are typically related to software problems within the MIB3 system.

Diagnosis / Trigger Conditions

Technicians may find that the vehicle's diagnostic address 5F reports a software version less than 3900. This indicates that the MIB3 infotainment system and associated modules are running an outdated software version, which can lead to the reported MMI and emergency call system malfunctions. The Audi e-tron MMI software update addresses these underlying software issues.

Repair Procedure Summary

This TSB outlines a software update process for the emergency call module (0075) and information electronics (005F) within the MIB3 system. The update is performed using a diagnostic tester (ODIS) and specific SVM codes.

1. Preparation: Ensure the required USB-C sticks are prepared with the correct software. The vehicle's 12V battery should be charged, and the vehicle parked.
2. Software Update Initiation: Connect the diagnostic tester and start ODIS. Enter "Flash" mode and select the "SVM – Multiple authorized code inputs" function.
3. SVM Code Entry: Accurately enter the specific SVM code chain for the vehicle model. For example, models like the Audi A4, A5, A6, A7, A8, Q5, Q7, Q8, and e-tron (GE) use codes such as DUCDTCPR0075MLB,FLIGHTON0075MLB,ZGDOIP,CL37A001US,TGU1MDMVB,CL37A002US,FLIGHTOFF0075MLB. The Audi Q3 uses a different code chain like TGU1MDMVB,CL37A001US,CL37A002US.
4. USB Stick Insertion: Insert the prepared USB-C stick into the vehicle.
5. Automatic Update: The software update program will run automatically. During this time, the vehicle may indicate user input is required via acoustic signals and flashing lights.
6. Post-Update Steps: After the update completes, remove the USB-C stick. Put the vehicle into bus sleep mode, then switch the ignition back on and restart the MMI.
7. Verification: Check if the emergency call LED in the roof module lights up green. If it does not, refer to TSB 2079652, "91 Emergency call LED in roof module not lit up in green."
8. Finalization: End the diagnostic session and send the diagnostic log.

Required Tools or Parts

Performing this software update requires specific tools and media:

• USB-C Sticks: These must comply with the USB 2.0 specification and have a 32GB capacity. SD cards with USB adapters are not suitable.
• ODIS Diagnostic System: The latest version of the ODIS software is necessary for the update program.
• Flash Media Creator (FMC): Used to download the software onto the USB-C sticks.
• Software Part Numbers: Specific software packages are required depending on the vehicle model and whether it has Sirius satellite radio. Examples include:
  • 8W0906961DJ (Audi Q3 without Sirius I8W with QV0)
  • 8W0906961GA (Audi Q3 with Sirius I8W with QV3)
  • 8W0906961DK (Audi Q3 without Sirius I8Y with QV0; Audi A4, A5, Q5 without Sirius PR number QV0)
  • 8W0906961FT (Audi Q3 with Sirius I8Y with QV3; Audi A4, A5, Q5 with Sirius PR number QV3)
  • 8W0906961DL (Audi A6, A7, Q7, Q8, A8, e-tron without Sirius PR number QV0)
  • 8W0906961FS (Audi A6, A7, Q7, Q8, A8, e-tron with Sirius PR number QV3)

Owner Action

If your 2021-2024 Audi is experiencing MMI function problems or displaying an "Emergency call fault" message, it is recommended to contact an authorized Audi dealership. The dealership will perform the necessary software update for the MIB3 system and emergency call module as outlined in TSB 2079133/3. This repair is typically covered under warranty. The procedure involves a software flash that takes approximately 60 "labor units" (TU), in addition to preparation time.

NHTSA ID: 11027376