2021-2022 Audi MIB3 Navigation Malfunction TSB

Revision History

Technical Service Bulletin 91 23 61 2062115/9, issued on January 17, 2023, supersedes Technical Service Bulletin Group 91 number 22-39 dated October 19, 2022. Key revisions include:

• Revision 9: Updated NavDB download instructions within the service procedure.
• Revision 8 (October 19, 2022): Added a note regarding recall 91DZ to the condition section, updated warranty information to reflect claims via 91DZ, and revised service details including folder structure and older NavDB versions.
• Revision 7 (November 17, 2021): Updated the header to include additional models.

Symptoms of an Audi MIB3 Navigation Malfunction

Owners of 2021-2022 Audi vehicles may experience issues with their MIB3 navigation system, particularly after an over-the-air navigation map update. The primary symptoms reported include:

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

These issues indicate a problem with the navigation database, preventing the system from functioning correctly.

Fault Codes / DTCs

When an Audi MIB3 navigation malfunction occurs, diagnostic scans of the information electronics control module, J794 (address word 005F), may reveal specific Diagnostic Trouble Codes (DTCs):

Code	Description	Module
B126CF0	Navigation system Navigation database malfunctioning	Information electronics control module, J794 (005F)
B126CF1	Navigation database not available	Information electronics control module, J794 (005F)

Diagnosis / Trigger Conditions

The root cause of this Audi MIB3 navigation malfunction is an internal reset that can occur during an over-the-air update. This reset can lead to corruption of the navigation database, preventing the MIB3 system from properly loading or initializing the navigation maps.

Important Warnings for Owners and Technicians

• Recall 91DZ Link: This TSB (91 23 61 2062115/9) is specifically applicable only in combination with recall 91DZ. If the repair described in this TSB is performed outside of campaign 91DZ, the warranty claim may be denied.
• Browser Compatibility: When downloading the MIB3 Navigation database files, Audi advises against using Internet Explorer. Instead, use modern browsers like Edge, Firefox, Chrome, or Safari.
• Workshop Tool: The USB flash drive containing the navigation data should be retained as a workshop tool. It is not necessary to contact technical assistance or re-download the data if the USB drive has already been created and is available. If an updated navigation database becomes available later, it will automatically install via an online update after the initial installation.
• No Supervision Required: Once the update process begins, it is not required to keep the vehicle in a service bay or to supervise the update until completion.
• Warranty: This TSB is informational only and is not applicable to any Audi warranty.

Repair Procedure Summary

The repair for an Audi MIB3 navigation malfunction involves downloading and installing a new navigation database. Technicians should follow these steps:

1. Download Database Files: Access the current MIB3 Navigation database files from the provided Audi link: https://vwgoa.box.com/s/zexspm3t3veqm5y4q893eid9gsvvv1kv. Download both files to the PC's C drive.
2. Prepare USB Drive: Obtain a 32GB or larger USB flash drive. Right-click the USB icon and select format, ensuring it is formatted to NTFS. Formatting the drive will erase all existing files. Formatting to FAT32 might prevent the vehicle from updating via the customer update menu.
3. Extract Files: Use a file compression tool such as 7-zip (available at www.7zip.org) to locate the downloaded NAV files on the C drive. Select both files and extract them. The extracted content should include