2021-2025 Audi A3/S3/RS3/Q3 Audi Connect Online Fault

Owners of certain 2021-2025 Audi A3, S3, RS3, and Q3 models may experience a complete loss of online connectivity for their Audi Connect services following a workshop visit. This issue, detailed in Audi Technical Service Bulletin (TSB) 2077616/3, manifests as a "no online connection" message and impacts various remote and in-car functions. The problem stems from a software issue related to Audi's IT infrastructure and the Vehicle Key Management System (VKMS) calibration.

This TSB provides a temporary workaround to restore functionality while Audi works on a permanent solution, expected in Q2/2025. If your 2024 Audi S3 Audi Connect no online connection issue aligns with the conditions described, your dealer can perform the necessary calibration steps.

Revision History

Audi Technical Service Bulletin 2077616/3 has undergone several revisions to update its content and instructions:

• Revision 3: Updated the date range for the condition, revised the technical background, and updated service instructions.
• Revision 2 (May 5, 2025): Revised service instructions.
• Revision 1 (April 14, 2025): Initial publication of the bulletin.

Symptoms of Audi Connect Malfunction

Owners may notice a range of issues indicating a "no online connection" problem with their Audi Connect services. These symptoms typically appear after a vehicle has been serviced at a workshop. Common complaints include:

• Climate Control: Remote controlled parking heater or A/C functionality is unavailable or not switching on (online). This includes "switching auxiliary heater on," "switching remote controlled parking heater on (online)," "switch on parking cooling," "switching remote controlled parking A/C on (online)," and "remote controlled parking heater/ A/C run-time preselection (online)" showing "functionality -> no function."
• Mobile Terminal Application (myAudi app): Remote departure time programming, general app connectivity, and customer portal applications show "functionality -> no function." This includes issues with "mobile terminal application (app)" and "customer portal application."
• Battery Management: Remote controlled high-voltage battery charging (online) is "functionality -> faulty."
• Online Services: "Online Services configuration" is "functionality -> not adjustable," and "online system update" "cannot be ended."
• Traffic Information System: "Traffic info (online) reception" and "display traffic information (online)" show "functionality -> faulty" or "functionality -> no function."
• Access Control: Remote controlled door unlocking (online) shows "functionality -> no function."

Customers frequently report that since their last workshop visit, "all online services have been permanently down," the "myAudi app has permanently had no connection to the vehicle," or "the vehicle user cannot log in or be created." Another critical indicator is when "the emergency call LED in the roof module next to the SOS button does not light up green."

Workshop technicians, when diagnosing the issue, typically find that the vehicle still has active licenses for online services, confirming that the problem is not a subscription lapse but a technical malfunction.

Conditions for this TSB

This TSB (2077616/3) specifically applies under certain conditions related to recent workshop activity. The online connectivity issues are relevant to this bulletin only if:

• The vehicle's last visit to the workshop occurred after March 2, 2025, and before May 5, 2025, AND
• The Vehicle Key Management System (VKMS) was calibrated during this specific workshop visit.

The VKMS can be calibrated as a standalone test program or as part of many "Replace control module" test programs. The fault may also occur if a "virtual replacement" was performed. This means the control unit was not physically replaced, but the "Replace control module" test program was executed for one or more of the following control units:

• 0019 - Data bus diagnostic interface
• 005F - Control unit for information electronics
• 00C6 - Charging unit for high-voltage battery
• 8107 - Aerial module
• 0075 - Emergency call module and communication unit

Diagnostic Fault Codes and Error Messages

During diagnosis using Guided Fault Finding, technicians may observe specific error codes indicating the VKMS activation was not performed successfully. The key identifier for this issue is ERROR CODE: 33.

This error code typically appears in the overall status of the VKMS calibration for one or more of the following components, indicating a "STATUS: Routine Aborted / RESULT: Incorrect Results / ERROR-CODE: 33" message:

• Information electronics 1
• Emergency call module and communication unit
• Antenna module
• Software Cluster Housekeeping 1

Figure 1 in the original TSB illustrates a screenshot of the Guided Fault Finding interface, highlighting these components with the specific error message, confirming the VKMS calibration failure.

Technical Background: Why the Issue Occurs

The underlying cause for the 2024 Audi S3 Audi Connect no online connection and related service failures is a software issue within Audi's manufacturer IT infrastructure. This issue specifically affected the period from March 2, 2025, to May 5, 2025, impacting the proper activation and calibration of the Vehicle Key Management System (VKMS) during workshop procedures.

Audi acknowledges this as a temporary problem and is actively working on a permanent solution, which is anticipated to be released by Q2/2025. The current TSB provides a workaround to restore functionality in affected vehicles.

Important Warnings

Owners should be aware of a critical safety implication related to this issue:

• If the LED in the roof module next to the SOS button does not light up green, the emergency call system is not activated correctly. This means that in the event of an emergency, the vehicle's automatic emergency call function may not operate, potentially delaying critical assistance.

Repair Procedure Summary

The repair for the 2024 Audi S3 Audi Connect no online connection issue, as outlined in TSB 2077616/3, involves a series of VKMS calibration steps. This measure is considered a temporary workaround until a permanent software solution is implemented.

1. Performing Another (New/Fresh) VKMS Calibration: The initial step requires performing a new VKMS calibration using the vehicle diagnostic tester. Successful calibration will display either "VKMS data OK" or "VKMS data OK - FAZ002399E."
2. Waiting for Chassis Number Erasure: The chassis number must be automatically erased from the manufacturer's IT infrastructure.
3. Calibrating VKMS Again: After the chassis number has been erased, the VKMS calibration procedure must be performed again.
4. Checking SOS Button LED Status: The status of the LED in the roof module next to the SOS button must be checked.

If one or more control units still show a different status after the initial calibration, the VKMS must be calibrated again after switching terminal 15 off and on again. This requires:

• Switching terminal 15 off and on again.
• Exiting diagnosis completely to automatically erase the passive event memory entries.
• Locking the vehicle. Then place the vehicle key at least 50 feet away from the vehicle and wait for the bus-sleep cycle for 30 minutes.
• If the customer complaint remains unresolved after these steps, the test program "0075 - Control module restart" must be performed.

To check the status of the LED, switch the ignition on and off (turn terminal 15 on/off). The LED in the roof module next to the SOS button must continue to be lit green for a few minutes after switching off the ignition. If it does not, it indicates the emergency call system is not correctly activated, and a technical repair query to the Technical Assistance Center (TAC) is required, referencing TSB 2077616/3.

Warranty Information

For vehicles still under warranty, this repair is typically covered. If the vehicle is outside of any warranty, this Technical Service Bulletin is informational only. Warranty claims must adhere to the Audi Warranty Policies and Procedures Manual.

• Service Number: 9107
• Damage Code: AS39
• Labor Operations:
  • "GFF / Guided Functions" using labor code "0150 0010" (See SRT with associated operations).
  • "GFF / Guided Functions" using labor code "0150 0060" (Labor according to the diagnostic log).
  • "Check vehicle (bus sleep mode)" using labor code "0689 0199" (10 Time Units).
• Claim Comment: As per TSB 2077616/3.

All part and service references in TSB 2077616/3 are subject to change and/or removal. Always consult with your Parts Department and/or ETKA for the latest information and parts bulletins, and check the Repair Manual for fasteners and other components.

NHTSA ID: 11018988