2022-2025 Audi quattro Ultra Drivetrain Vibrations TSB

Symptoms of quattro Ultra Drivetrain Vibrations

Owners of affected 2022-2025 Audi quattro Ultra vehicles may experience various noises and sensations from the drivetrain. These include "noises from the drive train (S tronic gearbox, manual gearbox, propshaft, and/or rear final drive) when pulling away quickly from a stop with the wheels turned."

Additional symptoms reported are "vibrations, humming, droning, or rubbing" that can be heard and/or felt in the vehicle interior or rear seats. These often occur when fully turning the steering wheel or when driving in a straight line, particularly in wet conditions. Technicians may also trace noises to the "all-wheel drive coupling 1," the rear of the vehicle, the rear final drive, or the propshaft. A "knocking sound" from the rear of the vehicle is also a possible indicator of these "Audi quattro Ultra vibrations."

Technical Background

The underlying cause of these "Audi quattro Ultra vibrations" and binding sensations stems from the different rotational speeds between the front axle differential and the rear final drive. This discrepancy can lead to varying degrees of humming, droning, vibrations, or rubbing, especially when taking very tight corners, driving in a straight line (particularly on wet roads), or when the all-wheel drive coupling 1 is engaged (closed).

Diagnosis and Trigger Conditions

To diagnose this issue, technicians will attempt to reproduce the customer's reported concern. The problem is often reproducible under specific conditions, such as fully turning the steering wheel, driving in a straight line (especially wet roads), or when the all-wheel drive coupling 1 is closed. It's noted that the noises may change as the operating temperature of the vehicle increases.

Diagnosis involves using ODIS Guided Functions, specifically accessing the All-Wheel Drive Electronics (address 0022) to view and record measured values. The diagnosis log must then be uploaded to GFF Paperless for review.

Repair Procedure Summary

Technical Service Bulletin 39 24 63 2059057/9 outlines a comprehensive two-stage procedure for addressing the drivetrain vibrations by servicing the all-wheel drive coupling 1. This process begins by ensuring the S tronic or manual transmission is at its operating temperature.

Technicians will then completely drain and collect the Automatic Transmission Fluid (ATF) from the all-wheel drive coupling 1. It is critical to document and photograph the quality of the drained ATF, ensuring photos include a date stamp and VIN reference, before proper disposal. New ATF, specifically part number G 055 515 A2, is then added, and the fluid level is set according to the repair manual.

After the initial refill, the vehicle is allowed to cool down, and the transmission is brought back to operating temperature. The entire ATF draining and refilling process is then repeated a second time. Following the second refill, the vehicle is again cooled down. The final step involves performing a basic setting to "Reset learnt values for oil ageing" using ODIS Guided Functions or Self Diagnosis within the All-Wheel Drive Electronics (address 0022).

Required Parts and Tools

To perform the repair outlined in TSB 39 24 63 2059057/9, the following parts are required:

• Transfer box gear oil (ATF): Part number G 055 515 A2 (Quantity 02)
• Fasteners, bolts, nuts, and screws: As needed, per ETKA and the repair manual.

Important Warning

Owners should be aware that the effectiveness of the repair measure "will become effective within the next 60 miles" of driving after the service has been completed.

Warranty Information

This repair, identified by Service Number 3960 and Damage Code 0020, is covered under Audi's warranty for up to 48 months or 50,000 miles. For Certified Pre-Owned (CPO) vehicles, the repair falls under G10 coverage, which requires verification of ownership. If your vehicle is outside of the warranty period, this Technical Service Bulletin serves as informational guidance only, and the associated costs may not be covered. All warranty claims are subject to review and audit by Audi Warranty policies and procedures.

What Owners Should Do

If you are experiencing "Audi quattro Ultra vibrations" or any of the described drivetrain noises or binding sensations in your 2022-2025 Audi quattro Ultra vehicle, it is recommended to contact an authorized Audi dealer. Provide them with the symptoms you are observing and mention Technical Service Bulletin 39 24 63 2059057/9. This TSB supersedes Group 39 number 24-60 dated April 3, 2024, so ensure your dealer is aware of the latest procedure.