46 Zirconium Inserts In Brake Piston (Ceramic Brakes Only) (GROUP 46, NO. 24-59)
Reference number: GROUP 46, NO. 24-59
Supersedes refnos: 2069078/1, 2069078/2, GROUP 46, NO. 23-40
46 ZIRCONIUM INSERTS IN BRAKE PISTON (CERAMIC BRAKES ONLY)
TECHNICAL SERVICE BULLETIN
| AUDI: | 2006-2025 All Audi Vehicles |
| GROUP: | 46 - Brake - Mechanical Components |
SERVICE INFORMATION
46 24 59 2069078/2 September 10, 2024. Supersedes Technical Service Bulletin Group 46 number 23-40 dated January 5, 2023, for reasons listed below.
| Model(s) | Year | VIN Range | Vehicle-Specific Equipment |
|---|---|---|---|
| All Audi Vehicles | 2006 - 2025 | All | Ceramic Brakes |
CONDITION
| Revision | Date | Purpose |
|---|---|---|
| 2 | - | Revised header (Add Model Year) |
| 1 | 01/05/2023 | Initial publication |
Customer states:
- No customer concerns, it is found during diagnostic work.
Workshop findings:
- When working on the brake calipers (when replacing the brake pads), it is noticed that the zirconium inserts are not firmly attached to the brake piston. The zirconium inserts are loose (can be turned/moved).
TECHNICAL BACKGROUND 1
To prevent the brake pads high temperatures from being transferred to the brake piston and thereby also to the seals and brake fluid, insulators known as zirconium inserts are used on the ceramic brake system. (Figure 1 - item A).
PRODUCTION SOLUTION
Not Applicable.
SERVICE
- Fit zirconium insert back into brake piston.
- It is neither necessary nor justified to replace the brake caliper.
- The brake system's functions are not affected.
WARRANTY
This TSB is informational only and not applicable to any Audi Warranty.
ADDITIONAL INFORMATION
All part and service references provided in this TSB (2069078 ) are subject to change and/or removal. Always check with your Parts Department and/or ETKA for the latest information and parts bulletins. Please check the Repair Manual for fasteners, bolts, nuts, and screws that require replacement during the repair.
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