Rear Disc Brake Pads For PCCB Rotors

Removing and installing the rear disc brake pads - GT2 / Turbo with PCCB

Warning. Danger of accident in brake pads with the wrong brake pad quality are installed.
^ Use only the type-specific brake pads in the Porsche Spare Parts Catalogue.

Note.
^ The GT2 is equipped with PCCB (Porsche Ceramic Composite Brake) as standard.
^ In contrast to this, at the start of production, steel brake discs and brake pads are used at first.
^ The pad backing plates (rear side of the brake pads) must not be greased.





^ 2 vibration dampers are fitted on each of the brakepad supports.





^ Vibration dampers are provided as additional damping measures.
^ Replace vibration dampers each time the pads are changed.
^ The damper plates have an adhesive protective film. The protective film must be pulled off before installation.

Removal

Caution. PCCB (Porsche Ceramic Composite Brake): Danger of material damage during wheel removal-installation (danger of damage to brake discs).
^ Use assembly aids (assembly pins) in order to exclude any possibility of heavy contact of the wheel with the brake disc. The assembly aids (2 assembly pins) are located in the luggage compartment.





1. Screw the 2 assembly aids (assembly pins), instead of 2 wheel bolts, into the wheel hub before wheel removal/installation. During removal, first remove the three remaining wheel bolts and remove the wheel carefully, without touching the brake discs.





2. Remove the retainer (safety bracket) -arrow- and extract the retainer pin inwards.
3. Pull out the warning contact wire on the brake caliper and remove the warning contacts from the brake pad plates.

Note. Replace warning contacts if the core of the wire is worn or worn through.
^ The warning contact can continue to be used if there are only scrape marks on the plastic part of the warning contact.
^ If necessary, remove some brake fluid by suction from the brake fluid reservoir (brake fluid may escape over the rim of the container).

4. Set back the brake pads as far as possible with the piston resetting fixture (press back).
5. Pull out brake pads together with the damper plates (remove). If this is not possible (depending on wear of the brake pads), use a spatula to detach the damper plates from the brake pad backing plate before removing the pads.

Installation

Warning. Danger of accident if old parts are fitted on brake caliper.
^ Fit new expanding spring, new retaining pin and new retainer (safer bracket) on the brake caliper.

Note.
^ Ensure correct brake pad quality. Use brake pads as per Spare Parts Catalogue.
^ The pad backing plates bear side of the brake pads) must not be greased.
^ For a wheel installation, 2 assembly aids (assembly pins) must be screwed into the wheel hub.





1. Before installation of the brake pads, check the wear of the brake discs - 46-15.1 "Checking rear PCCB brake discs (wear assessment)".
2. If necessary, press back the piston to its original position using the resetting fixture.
3. Fit new damper plates in the pistons. Remove protective film from the damper plates before installation.
4. Insert the brake pads.





5. Fit new expanding spring, new retaining pin and new retainer (safety bracket) -arrow-. These parts are available as a repair set and must be renewed each time the pads are changed.
6. Insert the warning contact wire and warning contacts.
7. Firmly press the brake pedal several times to position the brake pads on the brake discs.
8. Check and, if necessary, correct the brake fluid level.

Bedding in the brake pads
^ New brake pads require a slightly longer bedding-in period for PCCB brake discs than cast iron brake discs.
^ In general, the following applies: New brake pads must be worn in (bedding-in period), their optimum braking effect is therefore not reached until after a few hundred kilometers. The slightly reduced braking effect must be compensated for by increased pressure on the brake pedal. The same also applies after a brake disc change.