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Home >> Porsche >> 2021 >> 911 Targa 4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (46 Brakes - Brake Mechanism 3.0L (Eng Code MDK.H) -- 992 - 911 CARRERA (992)) >> WM, 465304 Measuring Rear Brake Discs >> Measuring Rear Brake Disc >> Measuring Rear Brake Disc - Minimum Thickness

Measuring Rear Brake Disc - Minimum Thickness

WARNING: This page is about a different car, the 2024 Porsche 911, 2023 Porsche 911, and 2022 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.
  1. Measure the brake disc using a suitable micrometer screw at least three different places, offset by 120° -Arrows-  .
    G15527710Courtesy 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:

    > 465319 REMOVING AND INSTALLING REAR BRAKE DISC 

      mm
    Brake disc thickness, rear:  > Measured value 28 mm
    Maximum thickness tolerance of brake discs:  > Measured value 0.02 mm