2025-2026 Audi A5, A6, Q5, S5, SQ5 Headlight Noise TSB 2080875/1

Audi has released Technical Service Bulletin (TSB) 2080875/1 to address customer concerns about a high-pitched noise originating from the vehicle's interior and headlights. This bulletin applies to specific 2025-2026 Audi A5, A6, Q5, S5, and SQ5 models. The TSB clarifies the nature of this Audi headlight noise and outlines the manufacturer's current stance and future plans for a resolution.

Symptoms

Owners of affected Audi vehicles may notice a distinct high-pitched noise. This Audi headlight noise is typically heard from the interior and/or directly from the headlights. The noise is not constant; it specifically occurs when the vehicle's lights are switched on. Furthermore, the sound may change in pitch or intensity depending on which light functions are active, such as turn signals or main beam operation.

Important Warnings for Owners

Audi has provided several critical advisories within TSB 2080875/1 that owners should be aware of:

• Do not replace any components for this condition since this will not resolve the customer's concern. This is crucial to prevent unnecessary repairs and costs.
• Repairs are only possible once the optimized headlight output modules are available. This indicates that a permanent fix is dependent on future hardware and software releases.
• Explain to the customer that a solution is expected to be available by the end of the second quarter of 2026 (subject to change) and that no repairs are necessary at this point. Owners should be informed that a resolution is planned but not yet implemented, and no interim repairs are recommended.

Technical Background

According to Audi's technical analysis, the high-pitched noise is a characteristic of the headlight system's design. It is caused by the switching element within the headlight output module, which is responsible for converting voltage. This process generates a high-frequency circuit, which can produce an audible noise. This operating noise can sometimes be heard outside the vehicle and may also be transmitted through the power supply wires to other components, leading to noise within the vehicle's interior.

Audi explicitly states that this noise is not a fault that is covered by warranty. It is considered a normal characteristic in all vehicles due to the design. The perception of this Audi headlight noise can be subjective and may vary among customers. Therefore, the noise is not indicative of a technical defect.

Production Solution

Audi is actively working on an optimized solution for this characteristic. A new software version, software 0641, and changed hardware, hardware H17, for the headlight output modules (00D6 and 00D7) are expected to become available. This updated hardware and software are anticipated to be released by the end of the first quarter of 2026.

What Owners Should Know

While the Audi headlight noise is a known characteristic, Audi is committed to providing a solution. It's important for owners to understand that the noise does not signify a malfunction or a safety issue with their vehicle. The upcoming software and hardware updates are designed to optimize the headlight output modules to mitigate this sound. Until these optimized modules are available, no repairs are necessary or recommended.

Next Steps for Owners

If you are experiencing the high-pitched noise described in TSB 2080875/1, you should contact your authorized Audi dealer. While no immediate repair is available or recommended, technicians are instructed to create a PSS (Pending Service Solutions) record in the PSS application. This helps Audi track customer concerns and ensures that you can be notified once the official solution becomes available in the second quarter of 2026.

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Source: NHTSA ID: 11029413