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Home >> Porsche >> 2017 >> Panamera Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (47 Brakes - Brake Hydraulic System, Regulator, Booster 2.9L Turbo Gas -- 971 - PANAMERA (971)) >> WM, 477019 Removing And Reinstalling Brake Booster >> Preliminary Work

Preliminary Work

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  1. Disengage push rod from brake booster at the brake pedal.
    1. 1.1 >9897 - Unlocking tool -1-  must be guided into the support -2-  for the ball joint of the push rod from below.
    2. 1.2 >9897 - Unlocking tool  must be pressed into the support from behind -arrow A-. 
      G15858479Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Disengaging push rod from brake booster at the brake pedal (at the sides)

    3. 1.3 The pressure -arrow A-  must cause the fork -1-  of the >9897 - unlocking tool  to prise the retaining lugs -2-  apart -arrow B-. 
    G15858480Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Disengaging push rod from brake booster at the brake pedal (from above)

  2. Remove cross panel.

    > WM, 508119 REMOVING AND INSTALLING CROSS PANEL

  3. Disconnect refrigerant line -1-  at the expansion valve.

    > WM, 874419 REMOVING AND INSTALLING EVAPORATOR/CONDENSER LINE

    G15858481Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Refrigerant line

  4. Drain the brake fluid reservoir.

    > 471019 REMOVING AND INSTALLING BRAKE FLUID RESERVOIR