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Home >> Porsche >> 2013 >> Boxster S, Automatic DCT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 272 (47 Brakes- Brake Hydraulic System, Regulator, Booster -- 911 CARRERA (991)) >> WM 477019 Removing And Installing Brake Booster (Except CARRERA "Edition", CARRERA Cabriolet "Edition", CARRERA 4 "Edition" CARRERA 4 Cabriolet "Edition") >> Removing And Installing Brake Booster >> Removing Brake Booster

Removing Brake Booster

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2019 Porsche 911, 2018 Porsche 911, 2017 Porsche 911, 2016 Porsche 911, and 2015 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disengage push rod for brake booster (in the footwell).
    Fig 1: Pressing Out Push Rod
    G09993316Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    1. 1.1. Unlocking tool 9767 -1-  must be guided from below in front of the ball joint on the push rod -2-  .
    2. 1.2. Press the unlocking tool together -arrows A-  and separate the ball joint from the securing clip -3-  (-arrow B-  ).
  2. Disconnect the vacuum line from the brake booster.
  3. Unscrew fastening screws -arrows-  .

    Shown as an example as the brake master cylinder is already removed at this time.

    Fig 2: Locating Brake Booster Fastening Screws
    G09993317Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Information 

    When removing and fitting the brake booster -1-  , make sure not to damage the boot -4-  on the push rod -2-  .

    The seal between the brake booster and body -3-  must always be replaced.

    Fig 3: Identifying Brake Booster Parts
    G09993318Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  4. Remove the brake booster.