Installing Front Brake Pads - 6-Piston Calliper

→ Only use the type-specific brake pads listed in the Porsche Parts Catalogue.

→ Replace the brake pads when the brake pad wear indicator light comes on, but no later than when there is a residual pad thickness of 2 mm on each axle.

→ Replace the brake discs on each axle as soon as the brake pad wear limit is reached.

→ Fit new expanding spring, new retaining pin and securing clip on the brake calliper.

• Make sure the retaining pin is inserted at the correct position. The side levelling surfaces prevent the retaining pin from twisting in the brake calliper.
• Do not grease the back of the disc brake pad.
• Check disc brakes for wear. For details of wear limits, see → 4600TW TECHNICAL DATA/BRAKE WEAR LIMIT .
• The core of the warning contact wire must not be left exposed. Worn insulation is not important.
• Use a new repair kit.
• Remove a little brake fluid from the reservoir using suction if necessary.

1. Before installing the brake pads, check the amount of wear on the brake discs. For details of minimum brake disc thickness, see → 4600TW TECHNICAL DATA/BRAKE WEAR LIMIT .
2. If necessary, push the brake pistons back into their original position using the brake piston resetting fixture 9472  (for 6-piston brake calliper).
   Fig 1: Identifying Brake Piston Resetting Fixture

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
3. Fit new brake-piston damping plates in the pistons.

   The protective film on the damping plates must be removed before installation.

   Fig 2: Identifying Damping Plate

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   When fitting the damping plates on the small pistons, position the cut-out on the damping plate -arrow-  at the brake-pad guide pins to prevent the damping plate from becoming deformed.

   Fig 3: Locating Damping Plate

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
4. Fit new disc brake pads.
5. Install expanding spring. Centre the retaining pin in the bore using the M8 auxiliary screw. To do this, push the retaining pin back with the auxiliary screw and then push the retaining pin through. Remove auxiliary screw and tighten new fastening screw at the retaining pin to 30 Nm (22 ftlb.).
   Fig 4: Installing Expanding Spring

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
6. Fit warning contact line on the disc brake pads, expanding spring and brake calliper -arrows-  .
   Fig 5: Installing Expanding Spring And Brake Caliper Warning Contact Line

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
7. Position disc brake pads by operating the brake several times.
8. Check the brake fluid level and correct it if necessary. The brake fluid level must be between the MIN/MAX marking.
   Fig 6: Identifying Brake Fluid Reservoir

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.