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Home >> Porsche >> 2014 >> Boxster Base, Automatic DCT Trans >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> 47 - Brakes - Hydraulic Brake System, Regulator -- (981) BOXSTER/CAYMAN >> WM 477019 Removing And Installing Brake Booster (All Models) >> Removing And Installing Brake Booster >> Installing Brake Booster

Installing Brake Booster

  1. Check the clip on the brake pedal (to ensure that the push rod is secured) and replace it if necessary.

    Guide the brake booster in from the work area, through the bulkhead, and align it with the brake pedal (second mechanic required).

    Ensure absolute cleanliness at all times during installation.

  2. Secure the brake booster to the pedals.

    Tightening torque for screws: 23 Nm (17 ft. lbs.).

  3. Fit push rod for brake booster on the brake pedal.

    Check that the push rod is engaged correctly in the clip on the brake pedal.

    1. 3.1. Position the brake pedal -1-  on the push rod for the brake booster -2-  .
    2. 3.2. Press the brake pedal -1-  down fully -arrow A-  until the push rod -2-  clicks into place in the holder on the brake pedal -3-  (-arrow B-  ).
      3. Fig 1: Installing Push Rod
      G10026683Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    3. 3.3. Check that the push rod -2-  is fully engaged in the holder -1-  .
      Fig 2: Identifying Push Rod Is Fully Engaged
      G10026684Courtesy of PORSCHE CARS NORTH AMERICA, INC.


  1. Check the clip on the brake pedal (to ensure that the push rod is secured) and replace it if necessary.

    Guide the brake booster in from the work area, through the bulkhead, and align it with the brake pedal (second mechanic required).

    Ensure absolute cleanliness at all times during installation.

  2. Secure the brake booster to the pedals.

    Tightening torque for screws: 23 Nm (17 ft. lbs.).

  3. Fit push rod for brake booster on the brake pedal.

    Check that the push rod is engaged correctly in the clip on the brake pedal.

    1. 3.1. Position the brake pedal -1-  on the push rod for the brake booster -2-  .
      Fig 1: Installing Push Rod
      G10026691Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    2. 3.2. Press the brake pedal -1-  down fully -arrow A-  until the push rod -2-  clicks into place in the holder on the brake pedal -3-  (-arrow B-  ).
    3. 3.3. Check that the push rod -2-  is fully engaged in the holder -1-  .
      Fig 2: Identifying Push Rod Is Fully Engaged
      G10026692Courtesy of PORSCHE CARS NORTH AMERICA, INC.
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