2025-2026 Audi e-tron GT Active Suspension Noise TSB

Audi has issued Technical Service Bulletin (TSB) 2080798/1 to address concerns regarding noise levels emanating from the active suspension system in certain 2025-2026 e-tron GT and RS e-tron GT models. This bulletin provides guidance for technicians to diagnose and resolve instances of the Audi e-tron GT active suspension noise.

This TSB specifically applies to vehicles equipped with active suspension, identified by PR code 1P8. Owners of affected vehicles may notice unusual noises when driving over uneven road surfaces.

Symptoms

Owners may experience "Noises when driving over bumps in the road surface." Technicians have observed that this noise can be clearly attributed to the active suspension, especially when driving over bumps (such as a dropped curb) with the steering wheel turned. It's important to note that the operating noises of this advanced damping system may differ from those of conventional suspension systems.

Technical Background

The Audi e-tron GT active suspension noise can sometimes be linked to the system's pressure. If the active suspension system pressure is too low, it can affect the noise level produced by the components. Technicians are advised to refer to the Workshop Manual for the correct pressure specifications to ensure proper system operation.

Diagnosis and Repair Procedure

If a customer complaint clearly points to the active suspension as the source of noise, and a comparison with an identical reference vehicle shows a significantly better noise level, technicians should follow these steps:

1. Check for Leaks: Inspect all components of the active suspension system thoroughly for any signs of leaks. Leaks can lead to reduced system pressure and contribute to unwanted noise.
2. Verify System Pressure: Confirm that the active suspension system pressure meets the specifications outlined in the Workshop Manual. Correct pressure is crucial for the optimal function and quiet operation of the system.
3. Noise Analysis (If No Leaks/Correct Pressure): If no leaks are found and the system pressure is confirmed to be correct, specialized noise analysis tools should be employed. Tools such as a Pico tool or Chassis Ear can help pinpoint the exact component generating the most audible noise.

Before any component of the active suspension is replaced, technicians must check for any additional available information regarding noises specific to the active suspension system.

Important Warnings for Owners

Owners should be aware of the following important information regarding this Technical Service Bulletin:

• Warranty Coverage: This TSB explicitly states: "This TSB is informational only and not applicable to any Audi Warranty." This means that any diagnostic or repair work performed under the guidance of this bulletin may not be covered by your vehicle's warranty, and you should discuss potential costs with your Audi service center.
• Normal Operating Noises: The bulletin highlights that the active damping system's operating noises differ from those of conventional damping systems. Not all sounds from the active suspension may indicate a fault.

Additional Information

All part and service references provided within TSB 2080798/1 are subject to change or removal. It is recommended that technicians always consult with the Parts Department and/or ETKA for the most current information and parts bulletins. Furthermore, the Repair Manual should be checked for any fasteners, bolts, nuts, and screws that require replacement during the repair process.

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Source: NHTSA ID: 11028465