Service-Bulletin

2021 Audi A6 Lower Display Flickering or Distorted TSB

Audi has identified a software malfunction causing the lower MMI display in 2021 A6 models to flicker or appear distorted. Technical Service Bulletin PSS 91 MIB3 (2066224/1) advises against component replacement and offers a temporary MMI reboot workaround while a permanent solution is developed.

ByAhmet Topcu — Founder & Editor-in-ChiefAutomated summary2021 Audi A6
2021 Audi A6 — Audi A6 lower display flickering
Editorial illustration generated for this article.
PSS 91 MIB391 22 81 2066224/1lower display is flickering or distortedlower display flickers intermittentlydisplay seems to be distortedMMI display flickeringMMI display distortedAudi A6 lower display flickeringAudi A6 MMI display issue2021 Audi A6 display problem

Symptoms of Lower Display Flickering or Distortion

Owners of the 2021 Audi A6 may observe their lower MMI display exhibiting intermittent flickering or appearing distorted. This issue, described in Audi Technical Service Bulletin PSS 91 MIB3 (2066224/1), directly impacts the functionality and visual clarity of the infotainment system's lower screen. The problem manifests as visual anomalies, making the display difficult to read or interact with. This specific concern is known as the "Audi A6 lower display flickering" problem.

No Diagnostic Trouble Codes (DTCs) Stored

A key finding from workshop inspections regarding the 2021 Audi A6 lower display flickering issue is that no relevant Diagnostic Trouble Codes (DTCs) are stored in the vehicle's system. This means that standard diagnostic scans may not immediately identify the root cause, as the problem is not generating typical fault codes. Technicians are advised that the absence of DTCs does not indicate the non-existence of the display malfunction.

Technical Background

The underlying cause for the lower display flickering or distortion in affected 2021 Audi A6 vehicles is a software malfunction within the MIB3 system. This software anomaly leads to the visual irregularities observed on the lower screen. Audi is actively working on a permanent software update to address this issue.

Important Warnings for Owners

Audi has issued specific guidance for this condition under Technical Service Bulletin PSS 91 MIB3 (2066224/1). Owners should be aware of the following:

  • Do Not Replace Components: It is crucial not to replace any components, such as the lower display unit itself, for this condition. Audi explicitly states that component replacement will not resolve the customer's concern, as the issue stems from software.
  • Solution Forthcoming: A permanent software solution is currently under development and is expected to be available by the end of the fourth quarter of 2022.
  • Not a Warranty Repair: This Technical Service Bulletin is informational only and is not applicable to any standard Audi Warranty claims.

Temporary Workaround for the Lower Display

While a permanent software fix for the 2021 Audi A6 lower display flickering is being developed, owners can perform a simple workaround to temporarily restore the correct functionality of the lower display. This involves rebooting the MMI system:

  1. Locate the volume/power button, typically found on the center console.
  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 indicates the system has restarted.

This procedure should clear the flickering or distortion, at least temporarily.

What Owners Should Know

Owners experiencing the "Audi A6 lower display flickering" should understand that this is a known issue with a forthcoming software remedy. The TSB PSS 91 MIB3 (2066224/1) provides official guidance. While waiting for the permanent solution, the MMI reboot workaround can offer temporary relief. It is recommended to contact an authorized Audi service center for the latest information regarding the software update's availability and installation.

Source: NHTSA ID 10208495

Frequently Asked Questions

What is the problem addressed by Audi TSB PSS 91 MIB3?
Audi Technical Service Bulletin PSS 91 MIB3 (2066224/1) addresses a software malfunction that causes the lower MMI display in 2021 Audi A6 vehicles to flicker intermittently or appear distorted.
Are there any fault codes associated with the 2021 Audi A6 lower display flickering?
No, the TSB states that no relevant Diagnostic Trouble Codes (DTCs) are stored in the vehicle's system for this specific lower display flickering or distortion issue.
Is there a temporary fix for the flickering lower display?
Yes, owners can perform a temporary MMI reboot by pushing and holding the volume/power button for at least ten seconds until the upper MMI screen boots back up. This can temporarily resolve the Audi A6 lower display flickering.
Should I replace parts if my Audi A6 lower display is flickering?
No, Audi explicitly advises against replacing any components for this condition, as it will not resolve the issue. A permanent software solution is currently under development to fix the underlying software malfunction.

What Audi A6 owners report

Counted from the records in our database across 33 model years.

1,665
Owner complaints
55
Recalls
5,316
Service bulletins
64
Crashes reported
71
Fires reported
65
Injuries reported

The 2021 model year

18 complaints, the 24th most of 33 model years on file. Owners reported 0 crashes, 0 fires and 0 injuries for this year, which also has 11 recalls on file.

Electrical System, the system this article covers, accounts for 396 of 1,665 complaints (24%), including 11 for 2021.

Complaints by model year

Model years with the most complaints for the Audi A6
1998130
1999217
2000148
2001113
200288
200591
200667
200871
2019114
202118

Most-reported systems

  1. Electrical System — 396
  2. Air Bags — 316
  3. Service Brakes — 161
  4. Fuel System — 150
  5. Engine — 130

Latest recalls for the 2021 model year

  • 25V900000 — Back Over Prevention (Dec 2025)
  • 25V201000 — Electrical System (Mar 2025)
  • 23V601000 — Service Brakes, Hydraulic (Aug 2023)
All 2021 recalls →

Recent owner reports about electrical system

While operating the vehicle under normal driving conditions, the vehicle suffered an immediate, un-commanded loss of engine power and throttle response.

2021 Audi A6 owner, Sep 2026

The vehicle went in for a software update. After purchasing the vehicle, the software update was part of a recall. Since that recall was performed, my vehicle has a lot of electronic glitches and a lot of issues.

2021 Audi A6 owner, Sep 2026
Read owner complaints →

Complaints are owner reports filed with NHTSA. They are unverified, and counts depend on how many vehicles were sold, so they are not a failure rate.

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