2022-2025 Audi Virtual Cockpit Turn Signal Light Not Working TSB

Audi has released Technical Service Bulletin (TSB) 2078826/1 to address a hardware issue affecting the virtual cockpit in certain 2022-2025 Audi models. This TSB specifically concerns situations where the Audi virtual cockpit turn signal light on one side is not functioning correctly.

The TSB, which has a release date of July 31, 2025, outlines a diagnostic and repair procedure for this specific problem, ensuring that technicians can accurately identify and resolve the underlying cause.

Symptoms

Owners may observe the following symptoms related to the Audi virtual cockpit turn signal:

• "The turn signal light in the Audi virtual cockpit on one side is not working."
• The "turn signal indicator display functionality -> does not activate."
• The "emergency flasher indicator display functionality -> gives incorrect reading."
• The "instrument cluster display functionality -> faulty."

Despite these visible issues, workshop findings indicate that there are typically no relevant event memory entries (fault codes) logged in the vehicle's system.

Diagnosis / Trigger Conditions

This issue is identified as a hardware problem within the Audi virtual cockpit. To determine if TSB 2078826/1 applies, technicians must check the production date of the Audi virtual cockpit using a workshop tester. The diagnostic path for this is:

• Self-diagnosis → Diagnostic address: 0017 - Instrument cluster → Identification → Expanded identification → FAZIT identification → Production date.

This specific diagnostic address (0017 - Instrument cluster) is crucial for identifying the affected control unit.

Repair Procedure Summary

The root cause of the non-functional turn signal light is a hardware issue related to the assembly procedure for the printed circuit board within the Audi virtual cockpit. Optimized hardware for the virtual cockpit was implemented in production starting September 30, 2024.

If the virtual cockpit's production date is determined to be BEFORE September 30, 2024, the Audi virtual cockpit (instrument cluster) must be replaced. The labor operations associated with this repair include:

• Remove and install/replace instrument cluster (Service Number 9025 xxxx)
• Self-diagnosis (Service Number 0129 0050)
• GFF / Guided Functions (Service Number 0150 0060)

The claim comment for this repair should reference TSB 2078826/1.

Important Warnings

• Warranty Coverage: If your vehicle is outside of its warranty period, this Technical Service Bulletin is for informational purposes only, and repair costs may not be covered.
• Claim Documentation: For any warranty claims, a video clearly demonstrating the complaint is required. This video must include the vehicle's VIN and the current date, be unedited, in focus, and recorded with sufficient light. It is important that the video does not show any people, faces, license plates, or customer data.

Owner Action

If you own a 2022-2025 Audi A6, A7, A8, Q7, Q8 (with Gen2+ virtual cockpit), or a 2024-2025 Audi Q3 (with FPK2+ virtual cockpit) and are experiencing a non-functional Audi virtual cockpit turn signal light, you should contact your authorized Audi dealer. Inform them about the issue and mention Technical Service Bulletin 2078826/1. The dealer will perform the necessary diagnosis to check the virtual cockpit's production date and determine if a replacement is required.

---

Source: NHTSA ID 11021485