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Home >> Porsche >> 2021 >> 911 Targa 4 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 61 (46 Brakes - Brake Mechanism 3.8L (Eng Code MDK.H) -- 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 atleast three different places, offset by 120° -Arrows-  .
    G15526440Courtesy 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 front PCCB brake disc. 

    >  WM, 461619 REMOVING AND INSTALLING PCCB BRAKE DISC AIR GUIDE (REAR)  

      mm
    Front brake disc thickness:  > Dimension 40 mm 
    Maximum thickness tolerance of brake discs:  > Dimension 0.01 mm