2025 Audi MMI Entertainment No Audio Output TSB

Audi has released Technical Service Bulletin (TSB) 2079976/1 to address an issue affecting certain 2025 Audi models where the MMI entertainment system occasionally produces no audio output when the vehicle is started. This problem specifically impacts the radio or media functions within the MMI, even though the system may visually indicate that audio is playing.

This TSB supersedes the previous Pending Service Solution (PSS) TSB 2077164, which described the same condition. The core of the problem is a software fault within the MMI system, and a software update is available to rectify it.

Symptoms of MMI Entertainment No Audio

Owners of affected 2025 Audi vehicles may notice that when the car is started, there is occasionally "no audio output for the radio or media on the MMI." This issue is consistent across all radio and media sources, meaning neither the radio nor any connected media devices will produce sound through the MMI entertainment system.

Despite the lack of sound, the MMI screen might still give the impression that audio output is functioning. For instance, the volume bar will appear and show the set volume when the control is turned, and the display will indicate playback of the selected media source when the play button is pressed. Attempts to restore audio by pressing or turning the volume control or by using the play/pause button in the MMI's entertainment menu will not resolve the issue. It is important to note that this problem exclusively affects the MMI's entertainment functions. Other audio outputs, such as turn signals, parking aid, and warning tones, will continue to function normally.

Diagnosis and Trigger Conditions

Audi's workshop findings confirm that the complaint of "2025 Audi MMI no audio" is reproducible. The technical background provided by Audi indicates that this is a software issue. The problem is specifically linked to vehicles equipped with the Bang & Olufsen premium sound system with 3D sound and loudspeakers in head restraints, identified by PR number 8RT. If your vehicle has this specific audio configuration and you experience the described symptoms, a software update is likely needed.

Repair Procedure Summary

The resolution for the occasional "2025 Audi MMI no audio" condition involves updating the MMI software. The specific instructions for this update are detailed in a separate document, TSB 2079690, titled "00 Combined software update 03.10.00/C (28.13.01) KD2." This indicates a comprehensive software package that will be installed on the vehicle's MMI system.

Performing a software update typically involves connecting the vehicle to specialized diagnostic equipment at an authorized Audi service center. A battery charger is usually connected to maintain stable voltage during the update process to prevent interruptions. The update will install the latest software version, which contains the necessary fixes for the audio output problem. This process ensures that the MMI system operates correctly and restores full entertainment audio functionality.

Warranty Information

For vehicles still under warranty, the software update described in TSB 2079976/1 should be covered. The Service Number for this operation is 9196, and the Damage Code is KD02. Labor operations include a software update, which involves connecting a battery charger (Labor Operation 0151 0010), and a fixed rate for the software update, encompassing all required preliminary and follow-up work (Labor Operation 0151 0040, valued at 130 TU). The claim comment should reference TSB 2079976/1.

Important Warning: If your vehicle is outside of any applicable warranty, this Technical Service Bulletin is informational only, meaning the repair costs may not be covered by Audi. It is always advisable to consult with your Audi dealer regarding warranty coverage before proceeding with any service.

What Owners Should Do

If you own a 2025 Audi A5, Q5, S5, or SQ5 model equipped with the Bang & Olufsen premium sound system and are experiencing occasional "2025 Audi MMI no audio" for entertainment functions, you should contact an authorized Audi dealership. Explain the symptoms you are experiencing, referencing Technical Service Bulletin 2079976/1. The dealership will be able to diagnose the issue and perform the necessary MMI software update, which is the prescribed fix for this condition.

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Source: NHTSA ID: 11026265