Brake Rotor Without Wear Indicators

This Is a New Test Procedure to Determine the Wear Limit of the Ceramic Brake Rotors.

The brake rotor can be identified by the following points:

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• The wear indicators -arrow- on the friction surface of the brake rotor are no longer present

• At the printed marks -A through D-
  Fig 1: Wear Indicator A Through D

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• The wear is determined by determining the brake rotor thickness "and" the wear value with the Carbon-Ceramic Brake Wear Tester: VAS6813  ; both must be measured three times respectively around the circumference.
• On the brake rotor cup the permitted minimum thickness "min.th" of the brake rotor is engraved.
• The brake rotor wear value -C- is engraved on the brake rotor cup for the Carbon-Ceramic Brake Wear Tester: VAS6813  .
• Value -A- is a value from the production of the new brake rotor
• The values -A and C- can be different depending on the location.
• The values -A and C- can be different depending on the brake rotor.

Example of Minimum Thickness: -3-, Brake Rotor Thickness. It Must Not Fall Short of This Value.

Fig 2: Identifying Ceramic Brake Rotor Data

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Depending on the brake rotor, the value -3- may be different.