2018-2021 Audi Self-Leveling Suspension Leans to One Side

Audi has released Technical Service Bulletin (TSB) 43 21 44 2061907/1, dated January 12, 2021, to address concerns regarding the Audi A6 self-leveling suspension lean when the vehicle is parked on a level surface. This informational bulletin applies to various 2018-2021 Audi models equipped with self-leveling suspension, including the A6, A7, S6, S7, RS 6 Avant, and RS 7.

What this TSB Addresses

This TSB clarifies the acceptable tolerance for the self-leveling suspension system. Previously, the permissible difference between the right and left sides of the vehicle was 10mm. This TSB updates that tolerance, increasing it to 13mm. This means that a slight lean, which might have previously been considered out of specification, could now be within the manufacturer's updated guidelines.

Symptoms

Owners may notice that their vehicle appears to lean to one side when it is parked on a level surface. This observation is the primary customer complaint addressed by this TSB. Workshop findings indicate that the measured position levels might deviate from older specifications in ElsaPro, which prompted this clarification.

Technical Background and Tolerance Specifications

The core of TSB 43 21 44 2061907/1 is the adjustment of the permissible tolerance for the self-leveling suspension. The distance between the center of the wheel and the bottom edge of the wing/wheel housing is used for measurement. This measurement must be calculated as an average. The updated tolerance between the right and left sides is now <= 13 mm.

To ensure accurate measurements, technicians are advised to ensure no persons or objects are in the vehicle and that the fuel and all fluids are filled to their maximum levels.

Below are the specific tolerance values for different suspension types:

Warranty and Service Information

This TSB is purely informational. It does not outline a specific repair procedure or apply to any Audi Warranty. Owners experiencing an Audi A6 self-leveling suspension lean should be aware that this document primarily serves to update the acceptable measurement parameters for technicians. Any part and service references provided in this TSB (2061907) are subject to change, and technicians should consult the latest information from their Parts Department and ETKA.

What Owners Should Know

This TSB is not a recall or a service action that requires a specific repair. It clarifies what is considered normal operating behavior for the self-leveling suspension system. If you notice your 2018-2021 Audi A6, A7, S6, S7, RS 6 Avant, or RS 7 appears to lean slightly, it may simply be within the newly defined acceptable tolerance. If you have concerns about an Audi A6 self-leveling suspension lean that seems excessive, it is always best to have your vehicle inspected by an authorized Audi service center.

Source: NHTSA ID: 10185655, TSB ID: 43 21 44 2061907/1