2021-2023 Audi Self-Leveling Suspension Leans TSB

Audi has issued Technical Service Bulletin (TSB) 43 22 66 2061907/2 to clarify the permissible tolerance for its self-leveling suspension system. This bulletin, dated July 12, 2022, supersedes an earlier TSB, Group 43 number 21-44, from January 12, 2021. The update addresses concerns from owners who observe their vehicle leaning to one side when parked on a level surface.

The TSB specifies that the permissible difference in height between the right and left sides of the vehicle's self-leveling suspension has been increased. Previously, this tolerance was 10mm, but it has now been revised to 13mm. This means that a slight lean within this new 13mm range is considered within normal operating specifications.

Understanding the Self-Leveling Suspension Tolerance

This TSB is primarily informational, providing updated technical background for technicians. It explains that the distance between the center of the wheel and the bottom edge of the wing/wheel housing should be calculated as an average. When measuring, it is crucial to ensure there are no persons or objects inside the vehicle, and that the fuel tank and all other fluids are filled to their maximum level. These conditions ensure accurate measurements of the suspension levels.

The bulletin details the revised tolerance specifications for various self-leveling suspension types. For all listed suspension types, the front and rear axle tolerances remain at ± 10 mm. However, the critical change is the maximum allowable difference between the right and left sides, which is now specified as less than or equal to 13 mm.

Revised Suspension Specifications

The following table outlines the updated tolerance specifications for Audi's self-leveling suspension:

If your Audi A6 self-leveling suspension leans, and the deviation falls within this new 13mm tolerance, it is considered normal according to Audi's updated guidelines. Technicians will use these revised specifications, which deviate from the previous ElsaPro specifications, when assessing vehicle levels.

Important Considerations for Owners

It is important for owners to understand that TSB 2061907/2 is an informational bulletin. It does not describe a repair procedure or a production solution for a defect. Instead, it clarifies the acceptable operating parameters for the self-leveling suspension system. Consequently, this TSB is not applicable to any Audi warranty claims. If you notice your Audi A6 self-leveling suspension leans, and you are concerned, a dealership can measure the suspension levels to confirm they are within the revised 13mm tolerance.