Removing Front Disc Brake Pads

Information 

• Do not open the brake system  .
• Do not loosen the brake line from the brake calliper when loosening the brake calliper  .
• The core of the warning contact wire must not be left exposed! It does not matter if the insulation is worn  .
• If necessary, remove a little brake fluid from the reservoir by suction in order to prevent an overflow when the disc brake pads are pushed back  .
  Fig 1: Identifying Brake Fluid Reservoir

  Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Information 

• To gain better access for assembly work, it is a good idea to turn the wheels fully either to the right or left! 

1. Before removing the brake calliper on the wheel carrier, carry out the following work:
   1. 1.1. Release plug connection on speed sensor and pull it off. Remove electric line from the holder on the wheel carrier.
   2. 1.2. Disconnect (release and unclip) the connector for the brake pad wear indicator (on the wheel carrier holder).
   3. 1.3. Remove holder at the wheel carrier.
   4. 1.4. Pull line for brake pad wear indicator out of brake calliper and brake pad.
   5. 1.5. Only for GT4 vehicles: 

      Release and disconnect connector for PASM.

      Information 

      • Never use an impact bolter to loosen and tighten the brake calliper on the wheel carrier  .
2. Remove fastening screws on the brake calliper -arrows-  .

   Place brake calliper onto a suitable base (e.g. universal lift). Use a suitable cloth as an intermediate layer to protect paintwork from damage. When positioning the brake calliper on the base, carefully guide the brake line and brake hose!

   Fig 2: Locating Brake Calliper Fastening Screws

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
3. Fit brake piston on the brake calliper between the disc brake pads using piston reset tool (replaces P83) Nr.144  . Then press the brake pads back evenly → Pressing back brake pads  .
   Fig 3: Pressing Back Brake Pads

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Information 

   If the disc brake pads are still to be used, mark their installation position.

4. Remove brake pads.
   1. 4.1. Carefully slide a commercially available screwdriver between the disc brake pad/brake calliper and lever the disc brake pad out by turning the screwdriver slightly. When doing this, make sure not to damage the dust boots on the brake pistons.
   2. 4.2. Repeat the process on the second brake pad.
5. Remove pad retaining spring.