2021 Audi Q5 / Q7 / Q8 / e-tron Air Suspension Malfunction TSB

Audi has issued Technical Service Bulletin (TSB) 2059363/1 to address an Audi e-tron air suspension malfunction warning that may appear in the instrument cluster. This issue affects several 2021 Audi models equipped with adaptive air suspension. The TSB outlines diagnostic steps and potential repairs for specific diagnostic trouble codes (DTCs).

Owners experiencing an air suspension malfunction warning should be aware of the symptoms and the recommended service procedures to resolve the issue.

Symptoms

Owners of affected vehicles may observe the following symptom:

• An "Air suspension malfunction warning" displayed in the instrument cluster. This warning is typically accompanied by a symbol for the air spring.

This warning indicates a potential problem with the vehicle's adaptive suspension system, which could impact ride comfort and vehicle leveling.

Fault codes / DTCs

When diagnosing the air suspension malfunction warning, a technician may find one of the following diagnostic trouble codes (DTCs) stored in the suspension control module (J775):

Code	Description	Module
C1260F0	Compressor control unit for adaptive suspension, no communication	Suspension control module J775 / Compressor control module J1135
U112100	Data bus, missing message	Suspension control module J775 / Compressor control module J1135

These codes point to communication problems between critical components of the adaptive suspension system.

What the service bulletin says

Technical Service Bulletin 2059363/1 provides guidance for technicians to diagnose and repair the Audi e-tron air suspension malfunction. The bulletin instructs technicians to first inspect the wiring and connector contacts between the suspension control module (J775) and the compressor control module (J1135).

If no irregularities are found, the next steps depend on the nature of the DTC. If the DTC is passive or sporadic, it should be deleted, and the vehicle released. However, if the DTC is active or static, the bulletin recommends replacing the Level Control System Compressor Electronics J1135. This repair ensures proper communication and function of the adaptive suspension system.

What to do

If you own a 2021 Audi Q5, Q7, Q8, or e-tron and are experiencing an Audi e-tron air suspension malfunction warning, it is recommended to contact your authorized Audi dealership. Describe the symptoms you are observing, such as the warning light in the instrument cluster.

Referencing Technical Service Bulletin 2059363/1 (also known as TSB 43 20 34 2059363/1) can help your service technician quickly identify the known issue and apply the appropriate diagnostic and repair procedures. Addressing this issue promptly can help maintain the performance and safety of your vehicle's adaptive suspension system.

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Source: NHTSA ID: 10174551