2023-2025 Audi Quattro Ultra Vibrations TSB 2059057/10

Symptoms of Quattro Ultra Vibrations and Binding

Owners of affected Audi vehicles equipped with the quattro Ultra system may notice several symptoms related to drivetrain behavior. 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."
• "Vibrations, humming, droning, or rubbing can be heard and/or felt in the vehicle interior and/or the rear seats when fully turning the steering wheel."
• "Vibrations, humming, droning, or rubbing can be heard and/or felt in the vehicle interior and/or on the rear seats when driving in a straight line, particularly in wet conditions."
• Noises originating from the all-wheel drive coupling 1 of the S-tronic or manual gearbox.
• Noises from the rear of the vehicle, which can be traced to the rear final drive or propshaft.
• A "knocking sound from the rear of the vehicle."
• The "Audi Quattro Ultra vibrations" or noises may also occur when driving in a straight line, especially in wet road conditions.

Technical Background

The root cause of these "Audi Quattro Ultra vibrations" and binding issues is attributed to the speed difference between the front axle differential and the rear final drive. This discrepancy can lead to varying degrees of "humming, droning, vibrations, or rubbing" when the all-wheel drive coupling 1 is closed, such as during tight corners or straight-line driving, particularly on wet roads.

Diagnosis and Trigger Conditions

To confirm the issue and ensure it aligns with TSB 2059057/10, technicians will attempt to reproduce the customer's reported concerns. This involves checking if the noises or vibrations can be replicated in the workshop. The TSB notes that the noises may change as the operating temperature of the vehicle increases.

Repair Procedure Summary

The repair outlined in Technical Service Bulletin 2059057/10 involves a specific service procedure for the all-wheel drive coupling 1. This procedure must only be performed if the vehicle meets all specified criteria, including model, year, and equipment. The steps are as follows:

1. Ensure the S-tronic transmission or manual transmission is at operating temperature.
2. Completely drain and collect the Automatic Transmission Fluid (ATF) from the all-wheel drive coupling 1.
3. Add new ATF, part number G 055 515 A2, according to the repair manual and set the ATF level.
4. Re-check that the transmission is at operating temperature.
5. Allow the vehicle to cool down.
6. Once cooled, re-check that the transmission is at operating temperature.
7. Completely drain off the ATF from the all-wheel drive coupling 1 again and dispose of it properly.
8. Add new ATF (part number G 055 515 A2) according to the repair manual and set the ATF level.
9. Re-check that the transmission is at operating temperature.
10. Allow the vehicle to cool down once more.
11. Perform a basic setting to "Reset learnt values for oil ageing" using ODIS Guided Functions or Self Diagnosis, specifically within the All-Wheel Drive Electronics (address 0022) control module.

Required Parts

The primary part required for this service procedure is:

• Part Number: G 055 515 A2
• Description: Transfer box gear oil (ATF)
• Quantity: 2

Additional fasteners, bolts, nuts, and screws may be needed as per the repair manual.

Important Warnings for Owners

Owners should be aware of a critical detail regarding this service:

• "This measure will become effective within the next 60 miles after the service procedure."

This means the full benefits of the repair, such as the resolution of "Audi Quattro Ultra vibrations" or binding, may not be immediately apparent and will require some driving after the service is completed.

Owner Action

If your 2023-2025 Audi Quattro Ultra vehicle is exhibiting symptoms such as vibrations, humming, droning, or binding during turns or straight-line driving, particularly in wet conditions, it is recommended to contact an authorized Audi service center. Inform them about the symptoms you are experiencing and mention Technical Service Bulletin 2059057/10. The dealer will diagnose the issue and perform the necessary ATF service procedure if your vehicle is identified as affected.

NHTSA ID: 11005888