Visual Characteristics Of Ceramic Brake Rotors

WARNING: This page is about a different car, the 2023 Audi SQ8, 2023 Audi RS Q8, and 2023 Audi Q8. However, it is still accessible from the selected car via links, so may be relevant.

Identifications on the Ceramic Brake Rotor on the Brake Rotor Cup

Fig 1: Identifying Ceramic Brake Rotor Data

Courtesy of AUDI

Running Direction
Brake Rotor Production Date
- Example
Brake Rotor Minimum Thickness
- Example
- Permissible Wear
Minimum Weight of Brake Rotor and Cup
- Example
Supplier
- Example
Brake Rotor Serial Production Number
- Example
Audi Part Number
- Example

Overview - Brake Rotor

Fig 2: Identifying Ceramic Brake Disc

Courtesy of AUDI

Cooling Duct
Friction Surface
Base Material

The friction surface on a new brake rotor already has stress cracks which occur during the production process. These stress cracks are all different.

Fig 3: Identifying Stress Cracks In Ceramic Brake Disc

Courtesy of AUDI

Stress cracks do not mean the ceramic brake rotor is faulty.
The stress cracks are somewhat visible and can be different from each other in strength.