2019-2025 Audi Self-Leveling Suspension Leans to One Side

TSB Revision History and Supersession

The Technical Service Bulletin (TSB) 43 25 02 2061907/3, issued on January 15, 2025, supersedes an earlier bulletin, Group 43 number 22-66, which was dated July 12, 2022. This latest revision, marked as Revision 3, primarily updates the header to include additional model years. Previous revisions include Revision 2 on July 12, 2024, also for header updates and model year additions, and the initial publication (Revision 1) on January 12, 2021.

Symptoms

Owners of certain Audi vehicles equipped with self-leveling suspension may notice that their vehicle appears to lean to one side when parked on a level surface. This observation, described as "the vehicle leans to one side when it is parked on a level surface," is the primary customer concern addressed by this bulletin. While the self-leveling suspension system is designed to maintain a consistent ride height, slight deviations might be observed.

Technical Background and Updated Specifications

Audi has issued this TSB to clarify and update the permissible tolerance for the self-leveling suspension system. The key change is an increase in the acceptable difference between the right and left sides of the vehicle, from the previous 10mm to a new maximum of 13mm. This adjustment means that what might have previously been considered a deviation from specifications in systems like ElsaPro is now within the manufacturer's updated guidelines.

The bulletin emphasizes precise measurement techniques. To accurately assess the vehicle's stance, the distance between the center of the wheel and the bottom edge of the wing/wheel housing must be calculated as an average. Critical conditions for accurate measurement include ensuring that there are no persons or objects inside the vehicle and that the fuel tank and all other fluid levels are filled to their maximum capacity. These steps are crucial to obtain a true reading of the vehicle's resting height and determine if the Audi self-leveling suspension leans beyond the new 13mm tolerance.

Suspension System Tolerances

The following table details the updated permissible tolerances for various self-leveling suspension types:

Suspension Type	Front Axle Tolerance	Rear Axle Tolerance	Tolerance between Right and Left
1BA	± 10 mm	± 10 mm	<= 13 mm
1BE	± 10 mm	± 10 mm	<= 13 mm
1BL	± 10 mm	± 10 mm	<= 13 mm
1BR	± 10 mm	± 10 mm	<= 13 mm
1BQ	± 10 mm	± 10 mm	<= 13 mm

Important Warnings for Owners

Audi explicitly states that this Technical Service Bulletin 43 25 02 2061907/3 is "informational only and not applicable to any Audi Warranty." This is a crucial point for owners to understand. If your vehicle's self-leveling suspension exhibits a lean that falls within the newly defined 13mm tolerance, it is not considered a defect eligible for warranty repair. This TSB serves to provide updated technical specifications to service centers, not to initiate a repair campaign.

Furthermore, the bulletin notes that there is "Not applicable." for both production solutions and service procedures outlined within this document. This reinforces that the TSB is a clarification of acceptable parameters rather than a guide for a specific repair or modification. Owners should be aware that any diagnostic work or potential repairs for a lean outside this 13mm tolerance would be handled separately and may not be covered under this specific bulletin.

What This Means for Owners

If you own a 2019-2025 Audi A6, A7, RS 6, RS 7, S6, S7, A6 allroad, or A7 e quattro with self-leveling suspension and observe that your vehicle leans to one side, it's important to understand the updated specifications. A lean within the 13mm tolerance is now considered normal.

While this TSB does not outline a repair, it is still advisable to have your vehicle inspected by an authorized Audi service center if you have concerns. They can perform the necessary measurements according to the guidelines provided in TSB 43 25 02 2061907/3 to confirm whether the observed lean falls within the revised acceptable limits. This will help determine if any further investigation or action is warranted, though it's important to remember that a lean within the 13mm specification will not be covered by warranty under this bulletin.

Source: NHTSA ID 11013721