2022-2025 Audi MMI Map Update Error TSB 2077204/1

Audi has issued Technical Service Bulletin (TSB) 2077204/1, released on March 11, 2025, to address various customer complaints related to the automatic online map update (OTA) function in several 2022-2025 Audi models. This bulletin provides comprehensive guidance for diagnosing and resolving instances where the Audi MMI map update error prevents navigation systems from updating correctly.

Symptoms

Owners of affected 2022-2025 Audi vehicles may experience one or more of the following issues with their automatic online map updates:

• "Automatic online map update (OTA) not offered."
• "Automatic online map update (OTA) stops/freezes."
• "Automatic online map update (OTA) aborted, and error message displayed."
• The navigation functionality "does not start" or is "stopped."
• Control modules or services display an "error message" related to the update.

These symptoms indicate a problem with the vehicle's ability to receive or process map data updates over the air, leading to an Audi MMI map update error.

Fault Codes

During diagnosis, technicians may find the fault code B126CF0 logged in the event memory of the J794 control unit (information electronics).

Diagnosis / Trigger Conditions

The automatic online map update function, which must be manually activated in the MMI (HOME > Settings > System maintenance), runs automatically in the background. Owners will not receive a specific message under "Software update" on the MMI indicating a new OTA map update is available. Instead, the top status bar on the MMI display shows a car symbol with download arrows, and update status information is visible during installation. The update continues in the background even if route guidance is active, with a confirmation displayed upon completion.

For MIB3 systems (with 7UG, 18Y, I8Z, or GP1, or in Q7 and Q8 from MY 2023 without PR number), monthly map updates occur if changes are available for the region the vehicle is driven in. Updates are initiated after approximately 10% of a journey using route guidance. For MIB2+ systems (7UG with 18T, except Q3 with I8V), one automatic online map update is provided per quarter, triggered after 20 stationary periods in the vehicle's usual home region.

Repair Procedure Summary

Addressing the Audi MMI map update error involves a series of diagnostic and corrective steps:

1. Initial Checks: Verify that the automatic map update is activated in the MMI (Menu > Settings > System maintenance > Automatic online map update) and that all privacy settings are deactivated. Confirm the license for the Connect package is active.
2. Factory Settings Reset: Restore factory settings for "Online updates" (MIB2+ only) or "All" under MMI HOME > Settings > System maintenance.
3. DTC Check (MIB3 only): Check for DTC B126CF0 in the J794 control unit's event memory. If present, proceed to step 13; otherwise, continue with step 7.
4. Update Not Offered: If the automatic map update is still not offered after initial checks, proceed to step 10.
5. Frozen Update: If a map update has stopped part way (indicated by a symbol in the top status bar), temporarily deactivate the online map update in MMI (HOME > Settings > System maintenance). Switch the vehicle off and on, then lock and unlock it.
6. MMI Reboot: After the MMI fully initializes, press and hold the top right corner of the display (where the time is shown) with two fingers to enter the red engineering menu. Use the volume control to navigate and exit immediately via "Reboot to the normal mode" and "Quick." This restarts the MMI and erases any frozen map update.
7. Bus Sleep Cycle: Once the system is fully initialized, lock the vehicle and wait for 1 hour for it to enter bus sleep mode. Then reactivate the automatic online map update (if previously deactivated). An online map update should be offered and installed automatically.
8. Terminal 30 Reset: If the problem persists, perform a terminal 30 reset directly on the J794 control unit by removing its fuse for at least 30 minutes.
9. Final MMI Reset & Bus Sleep: Start the MMI, wait for initialization, then restore factory settings for "Online updates" (MIB2+) or "All." Leave the vehicle parked for at least 1 hour (bus sleep mode) before re-evaluating the complaint.
10. Corrupt Hard Drive Partition: If previous measures fail, a corrupt hard drive partition may be the cause. The control unit for information electronics 5F does not need to be replaced. Perform repairs according to TSB 2062115 (for MIB3) or TSB 2073866 (for MIB2+), which involve downloading the latest navigation map package from myAudi and installing it via USB or other media.

Required Tools or Parts

Technicians will require the following for certain repair steps:

• USB Flash Drive, 32GB or larger (locally sourced)
• VAS 6160/VAS 6150 tester with the current version of ODIS (Windows 10)

Important Warnings

• Unnecessary Part Replacement: The control unit for information electronics 5F does not have to be replaced, even if a corrupt hard drive partition is suspected. The issue can often be resolved through software and data installation.
• Warranty Coverage: If your vehicle is outside of its warranty period, this Technical Service Bulletin is for informational purposes only, and repair costs may not be covered.
• Dealer Communication: Only submit Technical Assistance Center (TAC) or Dealer Bulletin System (DBS) tickets if all steps outlined in this TSB have been performed and the Audi MMI map update error persists.

Owner Action

If you are experiencing an Audi MMI map update error, first check your MMI settings to ensure automatic map updates are activated, privacy settings are deactivated, and your Connect package license is active. If the issue persists, contact your authorized Audi dealer and refer to Technical Service Bulletin 2077204/1. You can also download navigation data from the myAudi web portal or app for manual installation if needed, especially for MIB2+ systems.

Source: NHTSA ID 11016554