2023-2026 Audi Ceramic Brake Disc Cracks TSB

Owners of certain 2023-2026 Audi vehicles equipped with ceramic brake discs may notice cracks on the friction ring surface. This condition is addressed in Technical Service Bulletin (TSB) 2077435/2, released by Audi on October 21, 2025. This TSB provides important information regarding these observed cracks.

Symptoms

Owners might observe significant cracks on the surface of the friction ring of their ceramic brake discs. These cracks are visible upon inspection and may raise concerns about brake integrity.

Technical Background

Audi explains that the new generation of ceramic brake discs (CCB+) are prone to showing more significant cracks on the friction ring surface. These cracks form during the manufacturing process as the material cools. The friction ring surface contracts more than the base material, leading to these visible cracks. Importantly, these cracks are not an indication of significant thermal stresses or a functional defect.

What This Means for Owners

If you observe cracks on your 2023-2026 Audi e-tron ceramic brake cracks, or any other affected model, it's important to understand Audi's official stance. According to TSB 2077435/2, these cracks are considered a normal characteristic of the CCB+ brake discs. The functionality of the brake system is not affected by this condition, and there is no reason to replace parts. This TSB is informational only and does not apply to any Audi warranty claims for this specific characteristic.

Production Information

Audi notes that this characteristic is observed in several models from their respective production start dates or weeks:

• e-tron GT: From Start of Production (SOP).
• RSQ8: From week 48/2024.
• RS3: Planned from week 48/2025 onwards.
• New models: From 2025.

This information helps to clarify that the presence of Audi e-tron ceramic brake cracks and similar issues on other models is an expected outcome of the manufacturing process for these advanced brake systems.