2022-2026 Audi Ceramic Brake Disc Cracks TSB

Owners of certain 2022-2026 Audi vehicles equipped with ceramic brake discs may observe what appears to be cracking on the surface of the friction rings. This condition, described as "Significant cracks on surface of the friction ring," is addressed by Audi in Technical Service Bulletin (TSB) 2077435/2. This TSB is primarily informational, clarifying that these visible Audi ceramic brake disc cracks are not a defect and do not impact the vehicle's braking performance or safety. It is crucial for owners to understand this to avoid unnecessary concerns or repairs.

Symptoms

Owners or technicians may notice visible cracks on the friction ring surface of the ceramic brake discs. These cracks are typically identified through customer complaints or workshop findings. The TSB illustrates this condition with an image (Figure 1), showing a pattern of fine cracks across the disc surface.

Common complaint types related to this observation include:

• chassis -> brake system -> brake rotor component, automotive fluids -> cracked/broken
• chassis -> brake system -> brake rotor component, automotive fluids -> wear too high
• chassis -> brake system -> brake rotor appearance, surface -> material detaching

Despite their appearance, workshop findings confirm that the issue can be observed, but there is "No indication of significant thermal stresses" associated with these cracks. These Audi ceramic brake disc cracks are considered a normal characteristic of the material.

Technical Background

Audi explains that the new generation of ceramic brake discs, referred to as CCB+, inherently show more significant cracks on the surface of the friction ring. This phenomenon is a direct result of the manufacturing process and the material properties.

During production, as the ceramic material cools, cracks form due to differential contraction. The friction ring surface contracts more significantly than the base material of the disc, leading to the visible crack patterns. This is an expected characteristic of the CCB+ material and not an indication of a fault or impending failure.

Production Implementation

These specific ceramic brake discs (CCB+) have been progressively introduced across various Audi models. Owners of the following vehicles are likely to encounter this characteristic:

• e-tron GT: Equipped with these discs from Start of Production (SOP).
• RSQ8: Introduced from production week 48/2024.
• RS3: Planned for introduction from production week 48/2025 onwards.
• New models from 2025: Other new Audi models released from 2025 will also feature these brake discs.

This information helps identify the specific vehicle lines and production timelines where these Audi ceramic brake disc cracks are an expected visual characteristic.

Important Owner Information

This Technical Service Bulletin 2077435/2 provides critical guidance for owners regarding the observed Audi ceramic brake disc cracks:

• No measures required: Audi explicitly states, "No measures required." This means no service action, repair, or intervention is necessary for these cracks.
• Functionality is not affected: The TSB clarifies that "The functionality of the brake system is not affected by this." Your vehicle's braking performance, safety, and reliability remain uncompromised.
• No reason to replace parts: Owners should be aware that there is "no reason to replace parts" due to these cracks. Attempting to replace the discs for this cosmetic condition would be unnecessary and costly.
• Informational TSB: This bulletin is "informational only and not applicable to any Audi Warranty." This means the condition is not considered a defect covered under warranty.

Therefore, if you observe these cracks on your 2022-2026 Audi's ceramic brake discs, there is no need to seek a repair or replacement. Your vehicle's braking performance remains unaffected, and the cracks are a normal visual characteristic of the material.

TSB Details and Revisions

Technical Service Bulletin 2077435/2, with a transaction number of 2077435/2, was released for publishing on October 21, 2025, for the United States market (Volkswagen of America, Inc. (6444)). The TSB is classified at Level EH.

The revision history for this bulletin includes:

• Revision 2: This revision updated the header to include additional model year information.
• Revision 1: The initial publication of this TSB occurred on March 26, 2025.

This TSB provides clear guidance to technicians and service centers on how to address customer inquiries regarding these brake disc cracks, ensuring consistent communication that no repair is required.

NHTSA Information

This manufacturer communication is associated with NHTSA ID 11025404. It serves as an official document from Audi addressing a specific condition observed in their vehicles.

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Source: NHTSA ID: 11025404