2022-2026 Audi Ceramic Brake Disc Cracks TSB 2077435/1

Audi has released Technical Service Bulletin (TSB) 2077435/1 to address the appearance of cracks on the friction ring surface of ceramic brake discs in various 2022-2026 Audi models. This bulletin clarifies that these Audi ceramic brake cracks are a normal characteristic of the manufacturing process and do not indicate a fault or compromise the vehicle's braking performance.

Symptoms

Owners of affected Audi vehicles may observe:

• "Significant cracks on surface of the friction ring"
• Visible cracking or a cracked/broken appearance on the brake rotor component.
• Concerns about wear or material detaching from the brake rotor surface.

These observations typically relate to the visual appearance of the ceramic brake discs rather than a change in braking feel or performance.

Technical Background

According to Audi, the new generation of ceramic brake discs (CCB+) are designed with a specific material composition. During the production process, as the material cools, the friction ring surface contracts at a different rate than the base material. This differential contraction leads to the formation of these characteristic cracks on the surface of the friction ring.

Workshop findings confirm that while these cracks are present, there is no indication of significant thermal stresses that would suggest a functional issue. The presence of these Audi ceramic brake cracks is an inherent result of the material's properties and manufacturing method.

Important Warnings for Owners

This TSB provides crucial information for owners regarding Audi ceramic brake cracks:

• "No measures required." This means there is no repair or corrective action necessary for these cracks.
• "The functionality of the brake system is not affected by this." The presence of these cracks does not compromise the safety or performance of your vehicle's braking system.
• "There is no reason to replace parts." Owners should not be advised to replace ceramic brake discs solely due to the appearance of these cracks.

This bulletin is informational only and is not applicable to any Audi Warranty claims for this specific condition.

Owner Action

If you observe cracks on the ceramic brake discs of your 2022-2026 Audi vehicle, it is important to understand that, per Audi's TSB 2077435/1, this is considered a normal characteristic and does not require repair or replacement. The functionality of your brake system remains unaffected.

If you have concerns or notice any changes in your vehicle's braking performance, it is always recommended to consult with an authorized Audi service center. They can perform a thorough inspection to rule out any other potential issues.