Cracks In Ceramic Brake Rotor Connection Area

WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Ceramic Brake Disc, Cracks Near Threaded Connectors

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

Danger of an accident occurring if threaded connections are loose.

- Never loosen the threaded connection for the brake rotor ring and brake rotor cup.

Ceramic brake rotors are to be replaced with the following types damage.

Cracks near the threaded connectors on the cup leading to the connection area on the brake rotor -arrows -.

Fig 2: Identifying Cracks Near Threaded Connectors On Cup Leading To Friction Surface
Courtesy of AUDI OF AMERICA, LLC

Tangential cracks -arrows- in the connection area.

Fig 3: Identifying Cracks In Threaded Connection Areas
Courtesy of AUDI OF AMERICA, LLC

CAUTION:

Risk of accident due to uneven braking.

- If a brake rotor is damaged or worn, check the other brake rotors for damage and wear.