2021-2022 Audi MIB3 Navigation Malfunction TSB

Symptoms

Owners of affected 2021-2022 Audi vehicles may experience the following issues with their MIB3 navigation system, particularly after an over-the-air navigation map update:

• The navigation system is permanently initializing.
• The navigation map is corrupt or incomplete.

These symptoms indicate a problem with the navigation database, leading to the Audi MIB3 navigation malfunctioning.

Fault Codes / DTCs

When the Audi MIB3 navigation malfunctioning occurs, technicians may find one or both of the following Diagnostic Trouble Codes (DTCs) stored in the information electronics control module, J794 (address word 005F):

Code	Description	Module
B126CF0	Navigation system Navigation database malfunctioning	Information Electronics Control Module 1
B126CF1	Navigation database not available	Information Electronics Control Module 1

Diagnosis / Trigger Conditions

The root cause of the Audi MIB3 navigation malfunctioning is an internal reset that can occur during an over-the-air update. This reset can lead to the corruption of the navigation database, preventing the system from functioning correctly.

Important Warnings

Audi has provided specific guidance for this repair:

• "It is not required to keep the vehicle in a service bay or to supervise the update after it has been started."
• "Please keep the USB flash drive with the navigation data as a workshop tool."
• "It is not required to call into TAC or re-download the navigation data if the USB flash drive has already been created and is available."

Repair Procedure Summary

To address the Audi MIB3 navigation malfunctioning, a technician will perform the following steps:

1. Contact the Technical Assistance Center (TAC) to obtain a download link and instructions for the latest MIB3 navigation database.
2. Download both necessary files from the provided link to a PC's C drive, avoiding Internet Explorer.
3. Format a 32GB or larger USB drive to the NTFS file system. This step will erase all existing files on the drive.
4. Use 7-zip to extract the downloaded navigation files from the C drive to the formatted USB drive. The files must be copied directly to the root of the USB drive, not within a single folder.
5. Eject the USB drive safely.
6. Using ODIS diagnostic software, navigate to Guided Fault Finding/Guided Functions.
7. Execute the test plan for the Information Electronics Control Module 1 - J794 (005F) to erase the navigation databank. The path is Self test >> Diagnostic capable system >> 005F - Information Electronics Control Module 1 -J794- (MIB 2+ or MIB 3) >> 005F - Information Electronics 1, functions / 005F – Basic Setting >> Erase navigation databank.
8. End the diagnostic session and allow the vehicle to enter a sleep cycle.
9. Insert the prepared USB drive into the vehicle.
10. Access the MMI settings: MMI settings >> select system maintenance >> software update.
11. The software update should now be available for installation.

Required Tools or Parts

To perform this repair, a 32GB or larger USB flash drive is required. This drive will be locally sourced.

Warranty Information

This Technical Service Bulletin (TSB 2062115/7) outlines warranty claim types and labor operations for addressing the Audi MIB3 navigation malfunctioning. Claims can be made for vehicles within the 48 months/50,000 miles warranty period or for CPO (Certified Pre-Owned) vehicles with verified ownership. If the vehicle is outside warranty, this TSB serves as informational guidance only.

• Service Number: 9196
• Damage Code: 0039
• Labor Operations: Reinstall the Navigation Database (9196 1999) with an allowance of 20 Technical Units (TU).
• Diagnostic Time: GFF (0150 0000) with a maximum of 15 TU.

Road test procedures before and after the service procedure are not allowed for additional time (0 TU).

Additional Information

This bulletin, dated November 17, 2021, supersedes Technical Service Bulletin Group 91 number 21-30 dated September 15, 2021. For further details on MMI navigation map updates, technicians may refer to TSB 2037809, titled "91 MIB: MMI navigation map update 'How-to guide' - potential customer concerns."

NHTSA ID: 10203598