2021 Audi Q8 Clicking Noise from Wheel Bearing TSB

Symptoms

Owners of various Audi models, including the 2021 Audi Q8, may experience a distinct "clicking or clacking noise when maneuvering or parking." This noise can originate from either the front left or front right wheel bearing.

Technical Background

According to Audi's Technical Service Bulletin 40 20 05 2024318/9, the root cause of this 2021 Audi Q8 clicking noise is often attributed to microscopic movements occurring between the wheel bearing and the wheel bearing housing. These minute shifts can generate the audible clicking or clacking sound that owners report.

Important Warnings

It is crucial for owners to note that "Wheel bearings replaced for this concern will not be reimbursed under warranty." This TSB specifically outlines a repair procedure involving paste application, not a full wheel bearing replacement, for warranty coverage. If your vehicle is outside of its warranty period, this Technical Service Bulletin serves as informational guidance only.

Repair Procedure Summary

To address the 2021 Audi Q8 clicking noise, technicians should follow a specific service procedure:

1. Preparation: On the side(s) where the noise is present, thoroughly remove any corrosion and dirt from both the wheel bearing housing and the wheel bearing itself.
2. Paste Application: Using a brush, apply a thin, even coat of assembly paste, part number G 052109A2. Approximately 0.21 ounces (or 6 grams) from the tube should be applied to the wheel bearing housing as illustrated in Figure 1 of the TSB. It is important to ensure that no paste is applied to the threads.

This procedure aims to eliminate the microscopic movements that cause the noise without requiring a full wheel bearing replacement.

Required Parts

To perform this repair, the following specific part is required:

• Assembly paste: Part Number G 052109A2 (Quantity: 01)

Technicians should always verify the latest information and part bulletins with their Parts Department or ETKA.

Warranty Information

This repair falls under specific warranty guidelines. For vehicles within 48 months or 50,000 miles, Claim Type 110 applies. For Audi Certified Pre-Owned (CPO) vehicles, Claim Type G10 is used, requiring owner verification. The Service Number for this issue is 4067, with a Damage Code of 0010.

Labor operations include:

• Modify wheel bearing(s): Labor Operation 4057 4999 (10 TU)
• 1 Wheel Hub Repaired (remove + reinstall): Labor Operation 4067 19XX (See SRT)
• 2 Wheel Hubs Repaired (remove + reinstall): Labor Operation 4067 20XX (See SRT)
• Road test prior to service procedure: Labor Operation 0121 0002 (10 TU)
• Road test after service procedure: Labor Operation 0121 0004 (10 TU)

All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual and are subject to review or audit.

Bulletin History

This Technical Service Bulletin, identified as 40 20 05 2024318/9, was issued on May 13, 2020. It supersedes previous Technical Service Bulletin Group 40 number 17-74, dated July 19, 2017. The latest revision (Revision 9) updated the header to include additional models and model years.

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Source: NHTSA ID: 10175370