2025 Audi MMI Audio Output Loss TSB 2080129/3

Owners of certain 2025 Audi models may experience an intermittent and complete loss of audio output from their Multi Media Interface (MMI) system. This issue, detailed in Audi Technical Service Bulletin (TSB) 2080129/3, is attributed to a software malfunction.

This TSB outlines the symptoms, affected vehicles, and the necessary repair procedure to restore full functionality to the MMI audio system. The Audi MMI audio loss can impact various critical vehicle functions, making it important for owners to address this concern.

Symptoms of Audi MMI Audio Loss

The primary symptom described in TSB 2080129/3 is the occasional, complete failure of all audio outputs, which can occur either while driving or immediately after the vehicle is started. This widespread audio failure affects several key vehicle functions, including:

• "Turn signals"
• "Parking aid"
• "Warning tones"
• "Radio"
• "Media"
• "Navigation announcements"
• "Phone calls"
• "Spoken dialogues with the Audi assistant"

Owners will find that the audio output cannot be restored by typical actions such as adjusting the volume control, restarting media playback, or switching between different audio sources. In some instances, the Audi MMI audio loss may be temporarily resolved after the vehicle undergoes a bus sleep cycle or if the MMI system is manually restarted. The TSB also notes that the issue can sometimes be accompanied by a "continuous whistling sound from the driver display." In more severe cases, the MMI system itself may "MMI crashes" when the audio problem occurs, automatically restarting shortly thereafter.

Technical Background

Audi has identified the root cause of the intermittent Audi MMI audio loss as a software issue within the MMI system. This means the problem is not due to a faulty hardware component but rather a glitch in the vehicle's onboard software.

For vehicles manufactured in week 45/25 or later, a production solution has been implemented, meaning the complaint should no longer occur in newer vehicles. However, existing vehicles from the affected production period require a software update to rectify the issue.

Repair Procedure Summary

To address the Audi MMI audio loss, technicians are instructed to perform a specific software update. This TSB 2080129/3 supersedes a previous bulletin, PSS TSB 2077866, which also addressed the