2025 Audi A5/S5 Vibrating Steering Wheel TSB 2076547/1

Audi has issued Technical Service Bulletin (TSB) 2076547/1, released on February 5, 2025, to provide general information regarding the flashing procedure for the main control unit for drive system and suspension (J1312, diagnostic address: 812C). This TSB specifically addresses instances where a 2025 Audi A5 vibrating steering wheel may occur during software updates.

Symptoms

Owners may notice a vibrating steering wheel while their vehicle is undergoing a software update, service package installation, or commissioning of the main control unit for drive system and suspension (J1312). While some vibration is expected during this process, it can become a concern if it persists for an extended period. After the update, if loud rattling noises are heard from the steering, it indicates a more serious issue.

Diagnosis / Trigger Conditions

The vibrating steering wheel symptom is directly linked to the software update process for the J1312 control unit. During this procedure, the steering wheel is expected to vibrate for a maximum of 10 minutes. However, if the vibration continues for longer than 20 minutes, it suggests the flashing procedure may have stopped prematurely. This prolonged vibration can lead to mechanical damage to the electromechanical power steering rack.

To diagnose rattling noises after the update, technicians are instructed to:

• Ensure the vehicle is standing on its wheels.
• Place the selector lever in position P.
• Verify there are no 12V onboard supply faults.
• Turn the steering wheel 90 degrees clockwise and anticlockwise at a speed of up to 360 degrees per second.

Important Warnings

Audi warns that in isolated cases, if the flashing procedure stops and the vibrating steering wheel continues for an extended duration (longer than 20 minutes), it may cause mechanical damage to the steering rack in rare cases. This is a critical warning for both technicians and owners, as it highlights the potential for a costly repair if the issue is not addressed promptly during the update process.

Repair Procedure Summary

If the steering wheel vibrates for longer than 20 minutes during the software update, indicating a potential stoppage of the flashing procedure, technicians should perform a terminal 30 reset. Following the reset, the update or commissioning process should be restarted. After the software update is successfully completed, the steering noise level must be assessed for any loud rattling noises.

If loud rattling noises are detected from the steering after the update and commissioning, the electromechanical power steering rack must be replaced. Audi provides a video clip to assist technicians in identifying these noises.

Required Tools or Parts

While no specific special tools are listed, the repair procedure involves several labor operations for warranty claims:

• Software update: Labor operations 0151 0010 and 0151 0060, with time stated on the diagnostic protocol.
• Loosen and secure battery earth strap (if necessary): Labor operation 9785 0999, estimated at 40 time units (TU).
• Replace steering rack (electromechanical power steering) (if necessary): Labor operation 4835 55xx, referring to SRT with associated operations.

Warranty Information

This Technical Service Bulletin 2076547/1 outlines specific warranty claim details. The Service Number associated with this issue is 4835, and the Damage Code is 020. Warranty claims for these repairs must adhere to the Audi Warranty Policies and Procedures Manual. If the vehicle is outside of warranty, this TSB serves as informational guidance only, and costs may apply.

Owner Action

If you own a 2025 Audi A5 or S5 and are scheduled for a software update, or if you notice a 2025 Audi A5 vibrating steering wheel during or after a recent service, it is important to discuss this TSB with your authorized Audi dealer. While the initial vibration during an update is often normal, prolonged vibration or subsequent loud rattling noises from the steering require immediate attention to prevent potential damage to the steering rack. Your dealer can perform the necessary diagnostic checks and repairs as outlined in TSB 2076547/1.

Source: NHTSA ID: 11015729