2024 Audi A4/A5/S4/S5/RS5 Steering Warning TSB

Symptoms

Owners of affected 2024 Audi models may observe a specific set of symptoms related to the steering system. Upon starting the engine, the primary indicator is the illumination of the "yellow steering warning lamp" on the instrument cluster. Concurrently, drivers may experience a noticeable reduction in "power steering assistance", making the vehicle harder to steer.

Fault Codes / DTCs

Workshop diagnostics for the "Audi A5 steering warning" condition may reveal specific Diagnostic Trouble Codes (DTCs) stored within the J500 steering control unit (diagnostic address 0044). These fault codes indicate the nature of the software issue:

• B200000 symptom 4176
• B200FF4 symptom 16712020
• B200000 symptom 4432

Diagnosis

The root cause of the "Audi A5 steering warning" and associated symptoms has been identified as a software issue within the steering control unit. This means the problem is not mechanical but rather an electronic anomaly. The DTCs mentioned above will be logged in the J500 control unit, confirming the software-related fault.

Important Warnings for Owners

Audi has provided crucial guidance for this specific condition, outlined in TSB 48 24 62 2073087/1 and campaign 2073061:

• Do not replace the steering, it will not fix the problem. This explicitly states that replacing the steering system components will not resolve the underlying software issue.
• Do not replace any components for this condition since this will not resolve the customer's concern. Technicians are advised against replacing parts, as this will not provide a solution for the software-related fault.
• Customers should be informed that a software update is expected to be available by the end of the third quarter of 2024 (subject to change) and that no repairs are necessary at this point.

Manufacturer's Recommendation

Audi's current recommendation for the "Audi A5 steering warning" is to await a forthcoming software update. The improved software is planned for the third quarter of 2024. Once the DTCs are set to passive after a bus sleep cycle, the steering functionality should no longer be restricted, and the steering warning lamp will no longer light up. The vehicle can then be returned to the customer. This TSB is informational only and does not fall under standard Audi Warranty coverage.

Owner Action

If you experience a yellow steering warning lamp or reduced power steering assistance in your 2024 Audi A4, A5, S4, S5, or RS5, it is recommended to visit an authorized Audi service facility. They can confirm the presence of the relevant DTCs (B200000, B200FF4) and advise you on the expected timeline for the software update. No immediate repairs or component replacements are needed for this "Audi A5 steering warning" issue.

Source: NHTSA ID: 10250556