Front Disc Brake Pads

NOTE: The brake pads are replaced as on the other Porsche models with four-piston fixed calipers. The operations are therefore only described in brief. The following instructions, however, should be observed at all times:

^ Use correct brake pad quality (refer to spare parts catalog).
^ Replace damping plates whenever the brake pads are replaced.
^ The damping plate are provided with an adhesive backing and a protective sheet. This protective sheet must be removed prior to installation.
^ Never apply grease to the brake back-plates (backs of brake pads).

REMOVAL
^ Compress cross spring in the middle and disengage it from its seat. At the same time, i.e. before compressing the cross spring, press the spring in the holder area towards the brake disc (release spring). This prevents damage to the holder plate.

^ Move out warning contact on brake caliper and pull warning contact out of brake pad backing plate.

NOTE: Replace warning contacts if wire core is exposed or ground through. If grinding mark are limited to the plastic section of the warning contact, the contact may be reused.

^ Pull out brake pads with brake pad impact puller. Be sure to observe the following notes:

Move out brake pads along with damping plates. If this is not possible (depending on the degree of wear of the brake pads), use a spatula to separate the damping plates from the pad backing plate prior to removal of the pads. In both cases, start by resetting the brake pads as far as possible using a piston retracting tool. If required, draw off some brake fluid from the reservoir prior to this operation.

INSTALLATION:
^ If required, use retracting tool to push pistons back into home position.

^ Clean seating and guide surface of brake pads inside the caliper with white spirits and a cylindrical brush or special brush.

CAUTION: Take care not to damage the dust caps of the brake pistons.

^ Fit new damping plates to the pistons. As the damping pads are provided with a adhesive backing and a protective sheet, the protective sheet must be removed before fitting the plates.








^ Install brake pads. Observe correct brake pad quality.

NOTE:
^ Never apply grease to the brake pad back-plates (back of brake pads). To prevent the brake pads from corroding in the caliper, how ever, the seating and guide surfaces are protected by a thin grease coat. Use Optimoly HT (Cu paste) or Plastilube (supplied by Schillings, Postfach 1703, D-73431 Aalen) for this purpose.
^ Lubricate attachment eyes of the cross spring with Optimoly TA or Plastilube. If required, install new cross spring in such a manner that the flat side points towards the brake disc. Make sure the cross spring (arrow) engages correctly. Do not use force to push the spring into its seat (risk of damaging the holder).

^ Engage warning contact lever and warning contact. If necessary, disengage the cross spring again for this purpose.

^ With the vehicle stationary, operate brake pedal firmly several times to move the brake pads into the position corresponding to their operating position. Then check brake fluid level and top up if required.