2021-2023 Audi S3 Trunk Lid Strut Noises TSB

Owners of 2021-2023 Audi S3 and other Audi models may notice noises emanating from the trunk lid struts when the trunk is opened or closed. These sounds, often described as hydraulic flow or chafing, are a common characteristic of the strut design. Audi has issued Technical Service Bulletin 55 22 70 2062669/2 to clarify that these noises are normal and do not require any repair.

This bulletin, which supersedes an earlier TSB 21-53 dated March 25, 2021, aims to inform both vehicle owners and service technicians about the nature of these sounds. The TSB emphasizes that the presence of these noises does not indicate a defect in the trunk lid struts, but rather normal operation.

Symptoms of Trunk Lid Strut Noises

If you are experiencing "Audi S3 trunk lid noises," you might observe the following:

• Audible noises during trunk operation: Distinct sounds are heard specifically when the trunk lid is in motion, either opening or closing.
• Hydraulic flow sounds: These can be described as a gentle whooshing or gurgling, characteristic of fluid moving within a hydraulic system.
• Chafing sounds: A rubbing or scraping sound might also be present, indicating friction that is considered within normal operating parameters for the trunk lid struts.

These observations are consistent with the normal function of the hydraulic components within the struts and are not a cause for concern.

Understanding the Nature of the Noise

Audi's technical background explains that the hydraulic flow and functional noises heard during the extension and retraction of the trunk lid struts are inherent to their design. These are considered typical strut characteristics, resulting from the internal movement of hydraulic fluid and mechanical components. The sound frequency and intensity of these noises can vary significantly. Factors influencing the sound include the strut's temperature, the speed at which the trunk lid is operated, and how frequently it is used. For instance, colder temperatures or very rapid operation might lead to more pronounced sounds. These variations are often due to normal component tolerances and do not signify a malfunction.

Important Warnings for Owners and Technicians

Audi Technical Service Bulletin 55 22 70 2062669/2 includes a critical advisory regarding potential repairs, which is vital for both vehicle owners and service personnel to understand.

• Do not replace the trunk lid struts to resolve this issue. The TSB explicitly states that "Parts replacement does not solve this issue." This means that replacing the struts will not eliminate the characteristic noises, as they are part of the normal design.
• Claims for replaced parts will be subject to review. If a dealership attempts to replace the trunk lid struts under warranty for these noises, the claim may be denied by Audi. This could potentially lead to the owner being charged for the repair, or the dealership incurring the cost.

It is important to note that this TSB is informational only and is not applicable to any Audi warranty for the repair of these specific noises, as they are considered normal operating characteristics rather than defects.

What Owners Should Do

If you own a 2021-2023 Audi S3 or another affected model and notice "Audi S3 trunk lid noises" from your trunk lid struts, there is no need for concern or repair. The sounds are considered normal operation and are not a sign of a problem. You do not need to take your vehicle to a service center for this specific issue. Attempting to replace the struts will not resolve the noise and could result in unnecessary costs or warranty claim rejections. Simply continue to operate your trunk lid as usual, understanding that these sounds are a normal part of your vehicle's function.

Source: NHTSA ID: 10217903