2025 Audi Digital Key Sharing Not Working TSB 2079929/1

Audi has issued Technical Service Bulletin (TSB) 2079929/1 to address a concern where the digital key cannot be shared with other users or the shared key does not work in certain 2025 Audi models. This TSB, released on November 10, 2025, provides a resolution for this "Audi A5 digital key sharing issue" by detailing a required software update and a specific procedure for reactivating the digital key sharing function.

This bulletin supersedes Pending Service Solution (PSS) TSB 2077208, which also covered the issue of "91 PSS Audi connect Digital keys cannot be shared. Shared key does not work."

Symptoms

Owners of affected 2025 Audi vehicles may experience the following: "The digital key (MDK - mobile device key) cannot be shared with other users or the shared key does not work."

Technical Background

The root cause of this "Audi A5 digital key sharing issue" is identified as a limitation in the backend system. Specifically, the number of digital keys is currently restricted to the key user's original phone.

Important Warnings for Owners

Audi has provided critical advisories for owners regarding this procedure:

• "If a digital key is already in use, resetting the key user will remove this digital key and it must be set up again!"
• "The digital keys will be deactivated on the main device. The customer will receive a push notification from the myAudi app and can then remove the keys from the wallet app. The push notification has no effect on the following steps."

Owners should be aware that their digital keys will be temporarily deactivated during the process and will need to be re-established.

Repair Procedure Summary

The resolution for the "Audi A5 digital key sharing issue" involves a multi-step process that includes a software update and specific reactivation steps. This procedure ensures the "Share digital key" function is properly enabled.

Requirements Before Starting

Before initiating the repair, ensure the following conditions are met:

• A physical key (remote control key) is available.
• The key user's device is available.
• A key user has already been created for the vehicle.
• The vehicle has mobile reception, is online, and has a valid time signal (sufficient satellite reception).

Part 1: Prior to the Software Update

If a digital key is already adapted to the vehicle, it must be deleted before the software update. The vehicle's ignition must be switched on using the physical key (key fob) for this step.

1. Access the "Digital key" menu option within the MMI system.
2. Navigate to the "Management" tab.
3. Select "Main device management."
4. Choose "Remove main device." Ensure the key fob is inside the vehicle during this step.
5. Confirm the removal of the main device. This action will deactivate digital keys on the main device, and the customer will receive a push notification from the myAudi app to remove keys from the wallet app. This notification does not affect subsequent steps.

Part 2: Performing the Software Update

This part involves performing the software update detailed in TSB 2079690. Technicians should check for the visibility of "00 Combined software update 03.10.00/C (28.13.01) KD2" for the specific vehicle.

Part 3: Following the Software Update

After the software update, the digital key must be set up again, deleted again, and then set up a final time. This sequence initiates the backend process required to enable digital key sharing. The vehicle's ignition must be on with the physical key.

1. Open the "Digital key" menu option in the MMI.
2. Select the "Management" tab.
3. Choose "Main device management."
4. Select "Remove main device." The key fob must be inside the vehicle.
5. Confirm the removal of the main device.

Reactivating the Key User

After the digital key deletion and software update, the key user must be deleted and set up again. There are two scenarios:

Using the Audi connect activation card (black card)

1. The customer must bring their "Audi connect activation card" (black card) when picking up the vehicle.
2. Delete the vehicle from the myAudi app with the customer, then add it again and set the key user.
3. The customer should then be able to set up the digital key using the myAudi app.

Without the Audi connect activation card (black card)

1. Delete the vehicle from the myAudi app with the customer.
2. Contact "AudiDigital Business Support" at (800-822-2834) to have the vehicle and key user added again.
3. After a short waiting period, the customer will be able to add the digital key to the myAudi app, enabling digital key sharing.

Warranty Information

This Technical Service Bulletin 2079929/1 outlines the following warranty details:

• Claim Type: Informational only if the vehicle is outside of any warranty.
• Service Number: 9710
• Damage Code: KD02
• Labor Operations:
  • 0151 0010: Software update, including connecting battery charger. This operation refers to SRT with associated operations.
  • 0151 0040: Fixed rate for software update, including all required preliminary and follow-up work (e.g., bus sleep cycle, calibration drive, additional work, and restarting software update if flashing is aborted). This operation is allotted 130 labor units (TU).
• Claim Comment: As per TSB 2079929/1.

All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual and are subject to review or audit by Audi Warranty. When performing the combined software update, time stamps are not required for billing under warranty, allowing technicians to work on other vehicles concurrently. The combined software update can also be performed by non-productive personnel.

Additional Information

All part and service references within TSB 2079929/1 are subject to change. Always consult with your Parts Department and/or ETKA for the latest information and parts bulletins. Refer to the Repair Manual for fastener replacement guidelines.

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Source: NHTSA ID: 11026255