2021-2026 Audi Ceramic Brake Repair Authorization TSB

Audi has issued Technical Service Bulletin (TSB) 46 23 46 2034143/9, titled "46 Repair Authorization - Ceramic brakes," to provide guidance for technicians handling repairs related to ceramic brakes on various high-performance models from 2021 to 2026. This TSB emphasizes a specific diagnostic and authorization process that must be followed for any Audi ceramic brake repair.

This bulletin, dated June 20, 2023, supersedes an earlier TSB, Group 46 number 22-35, from October 19, 2022. The primary purpose of TSB 46 23 46 2034143/9 is to ensure proper diagnosis and authorization for ceramic brake repairs, as no specific production issue has been identified with these components.

What This TSB Addresses

This Technical Service Bulletin outlines a mandatory procedure for technicians when addressing concerns with ceramic brakes. It is not a recall for a defect but rather a directive to gather comprehensive information before performing any repairs. The goal is to assist the Audi Technical Assistance Center (TAC) in diagnosing potential issues and determining the root cause of any reported condition related to the ceramic brakes.

Symptoms

While the TSB does not list specific fault codes, it primarily addresses general repair authorization for ceramic brakes. A key symptom highlighted is a "noise-related" concern. If an owner experiences unusual noises or other performance issues with their vehicle's ceramic brakes, this TSB dictates the diagnostic path the dealership must follow.

Diagnosis and Pre-Repair Process

Before any parts are replaced for an Audi ceramic brake repair, technicians are required to follow a detailed process to diagnose the issue thoroughly. This involves several critical steps:

1. Verify the Concern: The technician must first confirm the customer's reported issue with the ceramic brakes.
2. Brake Acoustic Questionnaire: If the vehicle is still within its New Vehicle Limited Warranty period, a specific brake acoustic questionnaire must be completed.
3. Sound Recording and Frequency Analysis: For noise-related concerns, a sound recording of the issue is mandatory. This recording must be accompanied by a frequency analysis, following the guidelines provided in TSB 2051095: 46 Audi frequency analysis.
4. TAC Ticket Submission: The completed questionnaire and the sound recording must be attached to a Technical Assistance Center (TAC) ticket. This ticket serves as a formal request for assistance and authorization from Audi's technical experts.
5. TAC Consultant Contact: Technicians are explicitly instructed to contact a TAC consultant before proceeding with any actual repairs or part replacements. This ensures that expert guidance is obtained and that the repair strategy is approved.

Important Warnings and Warranty Information

Owners should be aware of specific conditions related to this TSB:

• No Production Issue Identified: Audi states that no changes to production have been made as no issue has been identified with the ceramic brakes themselves. This TSB focuses on the diagnostic process for any repair.
• Warranty Coverage: This TSB is for informational purposes only and is not covered by any Audi warranty. This means that diagnostic and repair costs for ceramic brake issues may not be covered under standard warranty terms, potentially impacting owners financially.
• Do Not Replace Parts Prematurely: The technical background explicitly states that technicians should contact the Audi Technical Assistance Center (TAC) before replacing any parts. This prevents unnecessary replacements and ensures proper diagnosis.

Superseded Bulletins

This current Technical Service Bulletin, 46 23 46 2034143/9, updates and replaces previous guidance. It supersedes Technical Service Bulletin Group 46 number 22-35, which was dated October 19, 2022. The revisions included updated header information and added model years to the scope of affected vehicles.

Additional Information for Technicians

Technicians are reminded that all parts and service references provided in TSB 2034143 are subject to change. They should always consult their Parts Department and/or ETKA for the latest information and check the Repair Manual for specific fastener requirements during any Audi ceramic brake repair.

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Source: NHTSA ID: 10238213, Manufacturer Communication TSB 46 23 46 2034143/9