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Home >> Porsche >> 2021 >> 911 Targa 4 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 54 (46 Brakes - Brake Mechanism 3.0L (Eng Code MDK.KA) -- 992 - 911 CARRERA (992)) >> WM, 465004 Measuring Front Brake Disc >> Measuring Front Brake Disc >> Measuring Front Brake Disc - Minimum Thickness

Measuring Front Brake Disc - Minimum Thickness

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  1. Measure the brake disc using a suitable micrometer screw at at least three different places, offset by 120° -Arrows-  .
    G15521160Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Wear areas on brake disc friction surface

  2. If the measured value is below the wear limit at one or more measuring points:

    Replace brake disc.

    465019 REMOVING AND INSTALLING FRONT BRAKE DISC 

    mm 

Front brake disc thickness:  > Measured value 34 mm 
Maximum thickness tolerance of brake discs:  > Measured value 0.02 mm