2022-2026 Audi e-tron GT Brake Disc Surface Cracks TSB

Owners of 2022-2026 Audi e-tron GT and Audi RS e-tron GT models may observe fine surface cracks on their vehicle's brake discs. This condition, specifically affecting steel brakes with tungsten carbide coating, is addressed by Audi Technical Service Bulletin (TSB) 2065341/4. This bulletin provides crucial information, clarifying that these visible cracks are a normal operational characteristic and not a defect. The presence of Audi e-tron GT brake disc cracks is not a cause for concern regarding safety or performance.

The TSB, identified by Transaction No. 2065341/4, was most recently released on October 17, 2025, and has undergone several revisions to include additional model years. It is an informational bulletin intended to reassure owners and technicians that the presence of these cracks does not indicate a problem with the braking system.

Understanding the Condition: Audi e-tron GT Brake Disc Cracks

The brake discs in question feature a tungsten carbide coating on their friction surface, applied using a specialized manufacturing process. During vehicle operation, the hard metal layer (tungsten carbide) and the base disc material experience different temperatures and thermal expansions. To compensate for these varying expansions, a network of fine, surface cracks, referred to as 'relaxation cracks,' forms on the brake disc surface. These Audi e-tron GT brake disc cracks are a natural and expected characteristic of this advanced brake technology.

Audi confirms that these relaxation cracks are normal and have no negative impact on the functions or comfort of the brake system. They are purely a visual phenomenon resulting from the material properties and design of the tungsten carbide coated brake discs.

Symptoms Owners Might Observe

While the surface cracks themselves are a normal condition, owners might notice them when investigating other perceived brake-related issues. Common customer complaints that might lead to the observation of these cracks include:

• Appearance Concerns: Visible scoring, corrosion, or material detaching from the brake disc surface, which might be mistaken for damage.
• Perceived Wear: Concerns about