Brake Rotor Wear, General Information

The check occurs by determining the brake rotor thickness "and" the wear value with the :VAS6813  , both must be measured three times respectively around the circumference.

The permitted minimum thickness of the brake rotor with "min.th" as well as the wear limit -C- for the :VAS6813  are engraved on the brake rotor cup.

Fig 1: Wear Indicator A Through D

Courtesy of AUDI OF AMERICA, LLC

The wear value -C- is different depending on the brake rotor and the measurement location.

If the brake rotor thickness "min.th." falls short at one measuring point, the brake rotor must be replaced.

"or"

if one of the three wear values -C- is reached or falls short when determining the wear using the :VAS6813  , the brake rotor must be replaced.

Fig 2: Wear Indicator A Through D

Courtesy of AUDI OF AMERICA, LLC

The wear value -C- is different depending on the brake rotor.