Replacing Brake Master Cylinder

Information 

When replacing the brake master cylinder, first remove the brake fluid reservoir.

Information 

When replacing the brake master cylinder or the brake fluid reservoir, the latter is not repositioned until the brake master cylinder has been installed.

1. Remove brake light switch.

   > WM 943619 REMOVING AND INSTALLING BRAKE LIGHT SWITCH (CAYENNE, CAYENNE GTS, CAYENNE TURBO S, CAYENNE S, CAYENNE S HYBRID, CAYENNE TURBO, CAYENNE S DIESEL, CAYENNE (3.0)) - section on "Removing"

2. Unscrew fastening screw -1-  for the brake fluid reservoir -2-  on the brake master cylinder -3-  .

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   Fastening screw on brake master cylinder

3. Lever out the brake fluid reservoir -1-  using a suitable tool -2-  and remove it from the brake master cylinder -3-  .

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   Removing brake fluid reservoir

4. Remove rubber seals -1-  from the brake master cylinder -2-  and replace them.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Rubber seals on brake master cylinder