2025 Audi A5/S5 Glass Roof Noises TSB 2078647/1

Owners of 2025 Audi A5 and S5 models may experience creaking or cracking noises emanating from the glass roof, particularly when the vehicle body experiences torsion. This condition, described in Audi Technical Service Bulletin (TSB) 2078647/1, is a known issue that can be effectively addressed by a specific lubrication procedure. This TSB provides a detailed solution for the 2025 Audi A5 glass roof noises.

Symptoms

The primary symptom reported by owners is "Creaking and cracking noises from roof when torsion acts on vehicle." These noises are typically heard from the panorama sliding sunroof or the outer roof panel area. If you hear such noises, your vehicle may be affected by this condition.

Technical Background

Audi's workshop findings indicate that the root cause of these noises is the sealing lip of the glass roof element. Specifically, the PU (polyurethane) sealing lip creates friction against the painted roof surface, which generates the "creaking/cracking noise." Audi implemented an optimized sealing lip geometry in production from week 11/25 onwards to prevent this issue in newer vehicles.

Repair Procedure Summary

The repair for 2025 Audi A5 glass roof noises involves lubricating the sealing lip of the glass roof. Before starting, technicians must ensure the vehicle is clean and the roof area is dry.

The Technical Service Bulletin outlines procedures for different models:

• For A5 Sedan models: The side and rear areas between the sealing lip of the glass roof and the vehicle body must be lubricated.
• For A6 e-tron Sportback models: The side areas between the sealing lip of the glass roof and the vehicle body must be lubricated. (While this TSB document details procedures for both A5 Sedan and A6 e-tron Sportback, the NHTSA linked vehicles for this particular document are the 2025 Audi A5 and S5.)

To perform the lubrication, a special "measurement film" (part number VAS 895037) is used. This film is slid between the seal of the glass roof and the vehicle body. A small amount of special lubricant spray, Krytox spray (part number G052172M2), is then applied evenly along the entire length of the seal (left, right, and rear) using the measurement film to guide it. This ensures the lubricant reaches the friction points without gaps. After application, any excess Krytox spray is carefully removed with a clean cloth. This process is designed to quickly and effectively resolve the 2078647/1 glass roof noise issue.

Required Tools and Parts

Technicians will need the following specific items to perform this repair:

• Special lubricant spray: Part number G052172M2 (Krytox spray)
• Measurement film: Part number VAS 895037

Warranty Information

For vehicles still under warranty, this repair may be covered. The TSB specifies the following codes for warranty claims:

• Service Number: 6041
• Damage Code: 020
• Labor Operations: Modify glass panel (codes 6041 4999 and 30 TU)
• Claim Comment: As per TSB 2078647/1

If the vehicle is outside of any warranty, this Technical Service Bulletin is informational only, meaning the owner would likely be responsible for the cost of the repair. All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual and are subject to review by Audi Warranty.

Important Notes for Owners

If your vehicle requires this repair, the dealership may need to take photo documentation for billing purposes. These photos must include the VIN and date, be unedited, in focus, and clearly show the problem's location. It is crucial that these photos do not contain any people, faces, license plates, or other customer data.

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Source: NHTSA ID: 11022643