2021 Audi A6 MMI Lower Display Flickering or Distorted TSB

Owners of the 2021 Audi A6 may experience an issue where the lower MMI display flickers intermittently or appears distorted. This condition is addressed by Audi Technical Service Bulletin (TSB) 91 22 96 2066224/2, which supersedes previous bulletin Group 91 number 22-81 dated February 23, 2022. The TSB identifies a software malfunction within the MIB3 system as the root cause of the problem.

Symptoms

If you own a 2021 Audi A6, you might notice your lower MMI display exhibiting specific visual anomalies. The primary symptoms reported by customers include the display flickering intermittently or the display seems to be distorted. These visual disturbances can impact the usability and clarity of the infotainment system's lower screen.

Diagnosis

When diagnosing this issue, technicians will find that no relevant Diagnostic Trouble Codes (DTCs) are stored in the vehicle's system, despite the visible problem with the display. This indicates that the malfunction is purely software-related and does not trigger any fault codes that would typically point to a hardware failure.

Important Warnings for Owners

Audi has issued critical guidance regarding this issue in TSB 91 22 96 2066224/2. Owners should be aware of the following:

• Do not replace any components for this condition since this will not resolve the customer's concern. Replacing parts like the MMI display or associated control units will not fix the underlying software malfunction and is an unnecessary expense.
• Audi anticipates a permanent solution to be available by the end of the 4th quarter of 2022. Until then, no repairs are necessary beyond the temporary workaround.

Workaround Procedure

While a permanent software update is still being developed, a temporary workaround can restore the correct functionality of the lower display. If your 2021 Audi A6 MMI display flickering or distortion occurs, you can perform an MMI reboot:

1. Locate the volume/power button for the MMI system.
2. Push and hold this button for at least ten seconds.
3. Continue holding until you observe the upper MMI screen booting back up. This action will restart the MMI system, which should temporarily resolve the flickering or distortion on the lower display.

What Owners Should Know

This Technical Service Bulletin (TSB) is informational and does not fall under typical warranty claims for repairs, as it describes a known software issue with a pending solution. Dealers are instructed to create a Pending Service Solutions (PSS) record for affected vehicles. The 2021 Audi A6 MMI display flickering issue is a known concern, and Audi is working on a definitive fix.

Source: NHTSA ID: 10210577