2021-2024 Audi A4/S4 Exterior Mirror Folding Noise TSB

Owners of 2021-2024 Audi A4, A4 allroad, and S4 models may notice an unpleasant noise when their electric exterior mirrors fold in or out. This issue is addressed by Audi Technical Service Bulletin (TSB) 2067558/2, which provides a repair procedure to eliminate the noise. The TSB, last revised on February 12, 2026, details the cause of the noise and the steps technicians should take to fix it.

Revision History

This Technical Service Bulletin has undergone revisions to ensure comprehensive and accurate information. The latest revision, Revision 2, updated the title, header, condition description, and added a model table and documentation requirements. It also revised the technical background, production solution, service procedure (including changes to image configuration and documentation requirements), and warranty information (specifically, updated SRTs). The initial publication of this TSB was on July 15, 2022.

Symptoms

Vehicle owners typically report an "Unpleasant noise when folding the electric exterior mirrors in/out." This Audi A4 exterior mirror noise is often described as a dry, grating sound. Workshop findings confirm that the spring mechanism within the mirror assembly is "running dry," indicating a lack of lubrication.

Technical Background

When the electric exterior mirrors fold in or out, a spring assembly is involved. This assembly is secured and pre-tensioned between two plastic washers and is guided or rotated by the drive motor via a bearing washer positioned underneath. The TSB explains that insufficient lubrication between the spring and the bearing washer leads to a "slip-stick effect." This effect creates a corresponding, very unpleasant noise that customers hear. Figure 1 in the TSB illustrates the interior construction of the drive unit for mounting the exterior mirror housing, providing a visual understanding of the components involved.

Production Solution

Audi has implemented an "Optimized process" in production to address this issue in newer vehicles. This suggests that vehicles manufactured after a certain point may already incorporate improved lubrication or design to prevent this noise from occurring.

Important Considerations Before Repair

Before proceeding with any repair, technicians are instructed to reproduce the customer's complaint based on the provided description and cause. This ensures the issue can be clearly assigned to TSB 2067558/2. The repair should only be carried out if all specific criteria for the vehicle apply exactly. These criteria include the model/type, chassis number, engine/motor and gearbox code, PR number(s), part number, software version, and other relevant codes. If these criteria are not met, the solution may not resolve the problem, potentially leading to repeat repairs and the rejection of warranty claims, as well as the re-debiting of parts.

Repair Procedure Summary

To resolve the Audi A4 exterior mirror noise, technicians must follow a specific repair procedure outlined in TSB 2067558/2. The process involves applying a special lubricant to the mirror's operating area.

1. Remove the Exterior Mirror Cover: The first step requires removing the cover of the exterior mirror unit. This procedure is detailed in the Workshop Manual, specifically under the chapter "Body / General body repairs, exterior / Rep. gr. 66 Exterior equipment / Exterior mirrors." This step allows access to the internal components of the mirror assembly. Figure 2 of the TSB illustrates the process of removing and installing the mirror cover.
2. Apply Special Spray: Once the mirror cover is removed, technicians are instructed to apply special spray G 052172M2 to the operating area of the mirror. The spray nozzle should be pressed firmly twice to ensure adequate application. Figure 3 in the TSB provides a visual guide on the correct application of the special spray G 052172M2.

Required Parts and Tools

To perform this repair, the primary required part is a special lubricant:

• Part Number: G052172M2
• Part Description: Special Lubricant
• Quantity: 0.1 (This typically refers to the fractional quantity of a spray can used per repair, not 0.1 of a can).

Technicians should always consult their Parts Department and/or ETKA for the most current information and parts bulletins to ensure they have the correct and latest components.

Warranty Information

For vehicles still under warranty, this repair is typically covered. The TSB specifies the following codes for warranty claims:

• Service Number: 6655
• Damage Code: 0020

Labor operations associated with this repair include:

• Remove and install electric exterior mirror housing: Labor Operation 6655 1900. This operation refers to seeing the Standard Repair Time (SRT) with associated operations for detailed time units.
• Remove and install 2 electric exterior mirror housings: Labor Operation 6655 2099, allocated 60 Time Units (TU).
• Modify electric exterior mirror housing: Labor Operation 6689 5099, allocated 10 Time Units (TU).

The claim comment for this repair should state: "As per TSB 2067558/2." All warranty claims submitted for payment must adhere strictly to the Audi Warranty Policies and Procedures Manual. Claims are subject to review and audit by Audi Warranty. If a vehicle is outside its warranty period, this Technical Service Bulletin serves as informational guidance only, meaning the repair cost would likely be borne by the owner.

Important Warnings and Documentation Requirements

When billing for this repair, it is mandatory to attach photos that clearly document the complaint to DOC-IT. To ensure a proper reference to the vehicle, the image or video documentation must:

• Include the VIN and date.
• Not be edited or altered in any way.
• Be in focus and taken with sufficient light. High resolution is not necessary.

If appropriate, technicians should mark the exact location of the problem within the image to assist with parts analysis and provide a clear reference to the complaint. Crucially, the photo documentation must not show any people, faces, license plates, or customer data to protect privacy and comply with data protection regulations.

What Owners Should Do

If you own a 2021-2024 Audi A4, A4 allroad, or S4 and are experiencing an "Unpleasant noise when folding the electric exterior mirrors in/out," you should contact your authorized Audi dealership. Inform them about the Audi A4 exterior mirror noise and mention Audi Technical Service Bulletin 2067558/2. The dealership technicians will be able to diagnose the issue and perform the necessary lubrication procedure using part number G052172M2 to resolve the problem.

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Source: NHTSA ID: 11029372