2022-2024 Audi e-tron GT / RS e-tron GT Cooling Fan Noise TSB

Symptoms: What You Might Hear

Owners of 2022-2024 Audi e-tron GT and RS e-tron GT vehicles may notice a specific "grinding or knocking type noise" originating from the front of the vehicle. This noise is typically present either during vehicle operation or when the vehicle is actively charging. According to Audi's workshop findings, this symptom is often replicable by technicians. The noise can be distinctly heard from either the right or left side of the vehicle's front, indicating the location of the affected electric cooling fans.

Technical Background: Understanding the Cause

Audi Technical Service Bulletin 2073030/1, issued on February 15, 2024, clarifies that the grinding or knocking noise from the electric cooling fans is a direct result of road debris interfering with their operation. During everyday driving, various environmental elements such as dirt, ice, mud, and small stones can enter the vehicle's fan housing. This debris typically gains entry through the ventilation grille located within the front wheel housing liner.

The TSB provides visual examples to illustrate this issue. Figure 1 highlights the fresh air intake area to the front side air duct, which is where the noise is commonly heard, on either the front right or front left side. Figure 2 further details the ventilation grille in the wheel housing, identifying it as the primary entry point for this road debris. Once inside, this debris accumulates on the radiator fan shrouds. As shown in Figure 3, when the electric cooling fans activate, these accumulated particles make contact with the fan blades, leading to the characteristic grinding or knocking sound.

Repair Procedure: Addressing the Grinding Noise

To resolve the Audi e-tron GT cooling fan noise, Audi outlines a specific cleaning procedure for the affected wheel housing area. The initial step involves a thorough cleaning of the wheel housing, with particular attention to the ventilation grilles. Technicians are instructed to use a garden hose equipped with a spray nozzle for this task. The goal is to effectively rinse away the majority of the accumulated debris that has caused the grinding or knocking noise.

For situations where the contamination is more severe or deeply embedded, a simple rinse may not suffice. In such cases, the repair procedure allows for the loosening of the wheel housing liners. This additional step provides better access to the radiator fans and their housings, enabling technicians to perform a more comprehensive cleaning. This ensures that all stubborn debris is removed, thereby eliminating the source of the Audi e-tron GT cooling fan noise.

Important Warranty Information

Audi Technical Service Bulletin 2073030/1 explicitly states that the damage leading to this Audi e-tron GT cooling fan noise is considered to be caused by "outside influence." Consequently, this type of damage is generally not covered under any standard Audi Warranty. Owners should be aware that any repairs or cleaning services performed to address this issue may not be covered free of charge. It is advisable to consult with an authorized Audi service center to understand potential costs.

Additional Information for Service

Audi reminds technicians that all part and service references within TSB 2073030/1 are subject to change or removal. It is essential to always consult the Parts Department and/or ETKA for the most current information and parts bulletins. Additionally, the Repair Manual should be checked for specific fasteners, bolts, nuts, and screws that require replacement during any repair process.

Source: NHTSA ID 10250537