2021-2022 Audi A6/S6 MMI Lower Display Flickering TSB

Owners of 2021-2022 Audi A6 and S6 models may notice their lower MMI display exhibiting intermittent flickering or appearing distorted. This issue, detailed in Audi Technical Service Bulletin (TSB) 91 22 02 2066224/3, is attributed to a software malfunction within the MIB3 system. The TSB provides guidance for this specific condition, including a temporary workaround.

This bulletin, identified as PSS 91 MIB3, supersedes an earlier version, Technical Service Bulletin Group 91 number 22-96 dated April 25, 2022. The updated version (Revision 3, dated May 25, 2022) includes an updated software filter and addresses Model Year 2022 vehicles.

Symptoms

Car owners may observe the following issues with their vehicle's lower display:

• "The lower display flickers intermittently"
• "The display seems to be distorted"

These visual anomalies can affect the usability and clarity of the infotainment system's lower screen. If you are experiencing Audi A6 MMI display flickering, this TSB applies to your vehicle.

Fault Codes / DTCs

During diagnosis, technicians have reported that no relevant Diagnostic Trouble Codes (DTCs) are typically stored in the vehicle's system when this display issue occurs. This indicates the problem is not a hard fault that triggers a specific error code but rather a software-related anomaly.

Diagnosis / Trigger Conditions

The root cause of the Audi A6 MMI display flickering and distortion is a software malfunction. This software issue can lead to the lower display behaving erratically, either by flickering intermittently or showing distorted images. The problem is not tied to any specific hardware failure, as confirmed by the absence of DTCs.

Important Warnings

Audi has issued critical advisories regarding this condition:

• Do not replace any components for this condition since this will not resolve the customer's concern. This means that replacing the lower display or related hardware will not fix the software-related flickering or distortion.
• Audi states that a permanent solution is expected by the end of the 4th quarter of 2022, though this timeline is subject to change. Owners should be informed that no permanent repairs are necessary at this point.

This TSB (91 22 02 2066224/3) is informational only and is not applicable to any Audi Warranty claims for repair costs, as it currently only provides a workaround and not a repair procedure.

Workaround Procedure

While a permanent fix for the Audi A6 MMI display flickering is under development, owners can perform a simple workaround to temporarily restore the correct functionality of the lower display. This involves rebooting the MMI system:

1. Reboot the MMI: Refer to the "Restarting the MMI" section in your vehicle's owner's manual for detailed instructions.
2. Manual Reboot: A common method is to push and hold the volume/power button for at least ten seconds until the upper MMI screen boots back up. This action will restart the MMI system, which often resolves the temporary display issue.

Owner Action

If you are experiencing the Audi A6 MMI display flickering or distortion, first attempt the MMI reboot workaround described above. If the issue persists or recurs frequently, you should contact your authorized Audi dealer. While no permanent repair is currently available, the dealer can document the concern by creating a PSS record through the Pending Service Solutions (PSS) application. This helps Audi track the prevalence of the issue and ensures you are informed once a permanent software update or solution becomes available.

Production Solution Update

Audi has indicated that a production solution for this software malfunction is currently under development. The company plans to update this bulletin with more information once a permanent fix is available. Owners should monitor official Audi communications and consult their dealership for the latest updates regarding this issue.

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Source: NHTSA ID: 10212155