Cracks In Ceramic Brake Rotor Connection Area

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2015 Audi S7, 2015 Audi RS 7, 2015 Audi A7 Quattro, 2014 Audi S7, and 2014 Audi RS 7. 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

Checking threaded connectors on the brake rotor ring and brake rotor cup:

WARNING: The brake rotor ring and the brake disc cup are attached to each other and must never be separated. Never loosen the threaded connector on the brake rotor cup.

If the ceramic brake rotor has cracks near the threaded connectors on the cup leading to the friction surface on the brake rotor -arrows-, then the brake rotors must be replaced.

Fig 2: Identifying Cracks Near Threaded Connectors On Cup Leading To Friction Surface

Courtesy of AUDI OF AMERICA, LLC

Replace the brake rotors on both sides of the axle when:

the brake rotors must be replaced because they are worn,
the replacement brake rotor has been technically modified, which can be determined by the revised part number.

Brake rotors must always be replaced on both sides of the axle.

Brake pads likewise must always be replaced on both sides of the axle.