2025 Audi A5 MMI Time Change Issue TSB 2079972/3

Audi has released Technical Service Bulletin (TSB) 2079972/3 to address a software-related concern affecting the MMI system in certain 2025 Audi A5, S5, Q5, and SQ5 vehicles. This bulletin specifically targets instances where the vehicle's clock does not automatically adjust for daylight saving time, even when the automatic time adjustment feature is enabled within the MMI system. The core issue is a software fault, and a production solution has been implemented for vehicles manufactured in week 42/25 or later.

Symptoms

Owners of affected 2025 Audi A5, S5, Q5, and SQ5 models may observe that "the time in the MMI does not automatically change to daylight saving time or back, even when automatic time adjustment has been set in the MMI." This behavior is consistent across all displays that show the time, meaning the incorrect time will be visible throughout the vehicle's infotainment system. While the behavior might appear to rectify itself after one or more bus sleep cycles, the underlying software problem persists and will likely recur.

Diagnosis and Trigger Conditions

This condition can be readily reproduced in a workshop setting, confirming the presence of the software issue. The technical background identifies the root cause as a software fault within the MMI system, preventing it from correctly processing and applying daylight saving time changes despite the automatic adjustment setting being active. The complaint specifically highlights that the MMI system fails to automatically change the time for daylight saving time or back again.

Repair Procedure Summary

To rectify the 2025 Audi A5 MMI time change issue, a software update is required. This update involves following the directions outlined in a separate technical service bulletin, TSB 2079690, which is titled "00 Combined software update 03.10.00/C (28.13.01) KD2." The repair process includes connecting a battery charger to the vehicle to maintain power during the software flashing procedure. The update encompasses all necessary preliminary and follow-up work, such as bus sleep cycles and calibration drives, to ensure proper system function after the software installation.

Revision History and Supersession

Technical Service Bulletin 2079972/3 has undergone several revisions to refine its guidance. The initial publication, Revision 1, was issued on November 10, 2025. Revision 2, also dated November 10, 2025, corrected labor operations related to warranty claims. The most recent update, Revision 3, further revised warranty information by updating labor operations. This TSB 2079972/3 supersedes and replaces the previous Pending Service Solution (PSS) TSB 2077132, which addressed the identical concern: "91 PSS MMI system: time does not automatically change to daylight saving time or back again."

Warranty Information and Labor Operations

For vehicles still under warranty, this software update should be covered. The claim type specifies that if the vehicle is outside of any warranty, this Technical Service Bulletin is informational only, meaning the owner may be responsible for repair costs. The designated Service Number for this operation is 9196, and the Damage Code is KD02. All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual.

Specific labor operations for this repair include:

• 0151 0010: Software update, including connecting a battery charger. This operation requires consulting the Service Repair Time (SRT) guide for associated operations.
• 0151 0040: Fixed rate for the software update, which covers all required preliminary and follow-up work, including bus sleep cycles, calibration drives, and additional tasks. This operation is allocated 130 Time Units (TU).
• 0150 9999: An additional lump sum for instances where a flash abort occurs, allowing for 50 Time Units (TU) to be claimed per documented attempt of flash cancellation.

The claim comment for this service should be recorded as "As per TSB 2079972/3."

Important Warnings

• If your vehicle is outside of any warranty, this Technical Service Bulletin is informational only. This implies that the repair may not be covered free of charge, and owners should inquire about potential costs with their dealership.
• When performing the combined software update, time stamps are not required for billing under warranty. This allows technicians flexibility, permitting them to work on other vehicles at the same time. Furthermore, the combined software update can be performed by non-productive personnel, streamlining the service process.

Owner Action

If you experience the described symptom where your 2025 Audi A5 MMI time change does not occur automatically, you should schedule an appointment with an authorized Audi dealership. The dealership will perform the necessary software update to correct the issue. The service number for this operation is 9196, with a damage code of KD02, which will assist the service department in processing the repair under warranty if applicable.

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Source: NHTSA ID: 11027417