2021 Audi A6, A7, A8, Q7, Q8 Loud Turn Signal TSB

Symptoms of a Loud Turn Signal Sound

Owners of certain 2021 Audi models, including the A6, A7, A8, Q7, and Q8, may notice that the turn signal sound becomes intermittently very loud. When this occurs, the sound emitted from the internal speaker of the virtual cockpit is approximately twice as loud as its usual volume. This issue specifically impacts the Audi Q8 loud turn signal and other listed models.

Technical Background

Audi has identified that the loud turn signal sound is caused by a software issue within the virtual cockpit. This technical service bulletin, TSB 2070332/1, addresses this specific software anomaly. This TSB, dated May 16, 2023, supersedes previous guidance provided in Pending Service Solution (PSS) TSB 2068300/2, also known as PSS 90 Audi Virtual Cockpit: Turn signal sound unusually loud.

Repair Procedure Summary

To resolve the intermittently loud turn signal sound, a software update must be performed on the Virtual cockpit J285 control unit (address word 0017). This procedure, outlined in TSB 2070332/1, involves several steps for technicians using the ODIS diagnostic system:

1. Deactivate Wireless Connections: Before starting, technicians must deactivate any Bluetooth or Wi-Fi connections in ODIS.
2. Ensure DoIP is Active: Diagnostics over Internet Protocol (DoIP) must be active. To activate DoIP, technicians navigate in ODIS to Administration>>General>>GFF Process>>DoIP communication>>Only allow DoIP communication. A red LED on the VAS 6154(A) diagnostic tool confirms DoIP is active. This setting will automatically reset once the diagnostic session ends.
3. Connect Diagnostic Tool: The diagnostic head is then connected to the vehicle using a USB cable.
4. Initiate Flash Procedure: In ODIS, the technician opens the 'Flash' feature and clicks on 'SVM code input'.
5. Enter SVM Code: The specific SVM code FPKWW0060 is entered.
6. Connect USB Stick: A USB stick containing the update software, identified by SD creator part number 8W6 906 961 Q, must be connected.
7. Maintain Key Position: The vehicle's key must remain on the reader coil throughout the entire update process.
8. Follow Prompts: Technicians then follow the on-screen prompts to complete the software update.

This update will bring the virtual cockpit software to version 60 or higher, addressing the Audi Q8 loud turn signal problem. For example, old software part numbers like 4K0920790E, 4K0920794E, 4K0920890E, 4K0920894E for A6, A7, Q7, Q8 models, and 4N0920790F, 4N0920794F for A8 models, with versions 55, 56, 58, or 59, will be updated to the new software version 60.

Required Parts and Tools

The software update requires specific tools and media:

• SD Card/USB stick: Part number 8W6 906 961 Q (Shop tool)
• Diagnostic Equipment: ODIS diagnostic system, VAS 6154(A) diagnostic tool.

Technicians may also refer to related TSBs for more information on these systems: TSB 2011732 for 00 Software Version Management (SVM) operating instructions, and TSB 2047812 for 00 SD Creator setup and use.

Warranty Information

This software update for the Audi Q8 loud turn signal issue is covered under warranty for vehicles up to 48 months or 50,000 miles (Claim Type 110). For Certified Pre-Owned (CPO) vehicles, Claim Type G10 applies, requiring owner verification.

• Service Number: 9025
• Damage Code: 0039
• Labor Operations: Software Update (Includes checking for DTCs) – Code 0151 0000. The time allocated for this operation is based on the diagnostic protocol, with a maximum of 100 Time Units (TU).
• Diagnostic Time: GFF (Guided Functions and Fault Finding) is included in the software update with no allowance (0 TU). Road tests before and after the service procedure also have no allowance (0 TU).
• Claim Comment: Claims must be submitted as per TSB 2070331/2 and adhere to the Audi Warranty Policies and Procedures Manual.

Important Note: If your vehicle is outside of any applicable warranty, this Technical Service Bulletin is informational only, and any repair costs would be the owner's responsibility.

Source: NHTSA ID 2070332/1