Brake Rotor Thickness, Checking

At a distance of 120° the marks for the measurement for deterring the wear can be found

Measure the brake rotor thickness at these three locations

Here is the third measuring point in the example

Fig 1: Wear Indicator A Through D

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The minimum permissible brake rotor thickness "min.th." is engraved in the brake rotor cup.

-- Measure the brake rotor thickness -x- three times around the circumference at the measuring locations.

Fig 2: Measure Brake Disc Thickness Three Times On Each Wear Indicator Circumference Of Brake Disc

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

Example of minimum thickness: -3-, brake rotor thickness. It must not fall short of this value.

Fig 3: Identifying Ceramic Brake Rotor Data

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If the brake rotor thickness does "not" fall short continue.