2023-2024 Audi A3, S3, RS 3 Driver Assist System Faults

Owners of 2023-2024 Audi A3, S3, and RS 3 models may experience various issues with their driver assist systems. These malfunctions typically occur briefly, lasting about 10 seconds, and can lead to several warning messages appearing in the instrument cluster. This Technical Service Bulletin (TSB) 2079574/2 outlines the symptoms, diagnostic codes, and the necessary repair procedure to address this Audi driver assist system fault.

Symptoms

If your vehicle is affected by this issue, you may notice one or more of the following messages displayed in your instrument cluster, depending on your vehicle's specific equipment:

• "Traffic sign recognition: fault"
• "Adaptive cruise assist not working"
• "Lane assist: currently unavailable. See Owner's Manual"
• "Audi pre sense: currently restricted. See Owner's Manual"
• "Audi pre sense not working"

These messages indicate that the driver assist systems are not functioning as intended, which can impact safety and convenience features.

Fault Codes / DTCs

When diagnosing this Audi driver assist system fault, workshop technicians will find specific event memory entries logged intermittently in the front camera for driver assist systems, identified as R242 (diagnostic address 00A5). The relevant diagnostic trouble codes (DTCs) and their associated symptom numbers are:

Code	Description	Symptom Number
B200FF0	Internal malfunction	1124116
B2F0100	Development code 1	1124198

These codes point to an internal issue within the front camera module that affects its operation.

Important Warnings

NOTICE
This TSB does not apply if a different symptom number than 1124116/1124198 is logged for event memory entry B200FF0/B2F0100.

This means that if your vehicle exhibits similar symptoms but logs different symptom numbers for DTCs B200FF0 or B2F0100, or if other DTCs are present, this specific TSB 2079574/2 may not be the correct solution. Technicians should ensure the exact symptom numbers (1124116 or 1124198) are present before proceeding with this bulletin's repair steps.

Diagnosis

The root cause of the Audi driver assist system fault is identified as a software issue within the front camera for driver assist systems, designated as R242 (diagnostic address 00A5). The intermittent logging of DTCs B200FF0 and B2F0100 confirms this software-related malfunction.

Repair Procedure Summary

The recommended repair involves updating the software of the front camera for driver assist systems (R242) using the Software Version Management (SVM) system via an ODIS tester. This process ensures the camera module receives the latest software to correct the internal malfunction. The procedure is outlined in three main steps:

1. Change communication type to CAN-FD: Technicians must configure the ODIS tester to use "Only allow CAN-FD communication" within the Admin >> General >> GFS Process menu, then save this setting.
2. Update bootloader and software: The front camera's bootloader and software are updated using SVM code A5A024. This step flashes the new software to the R242 module.
3. Parameter setting and coding: After the software update, the front camera requires parameter setting and coding using SVM code A5B024 to ensure it operates correctly with the vehicle's other systems.

Technicians are instructed to follow all instructions provided in TSB 2011732 for general SVM operating procedures.

Required Tools or Parts

The primary tool required for this repair is an ODIS tester, which is used to perform the software update and coding. The specific SVM codes needed for the update are A5A024 for the bootloader and software update, and A5B024 for parameter setting and coding. No physical parts are typically replaced for this software-related issue.

Warranty Information

This repair is generally covered under warranty if the vehicle is still within its warranty period. For warranty claims, the following details apply:

• Service Number: 9638
• Damage Code: 0039
• Labor Operations: Software update (0151 0010) and Software update (0151 0060)
• Claim Comment: As per TSB 2079574/2

All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual. If the vehicle is outside of warranty, this Technical Service Bulletin serves as informational guidance for diagnosis and repair.

Revision History

This Technical Service Bulletin has undergone revisions to ensure accuracy and effectiveness:

• Revision 1: Initial publication on October 2, 2025.
• Revision 2: Service instructions were revised, specifically by removing step 4 from the procedure. This revision was released on March 20, 2026.

This TSB is subject to change, and technicians should always verify the latest information through Audi's official channels.

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Source: NHTSA ID 11031012