Removing and Installing Front Brake Pads
Removing and installing front brake padsTools
Preliminary work
1. Remove wheel.
Removing front brake pads
WARNING:
Danger of accident if brake pads of the wrong quality are installed.
^ This can result in longer braking distances and more wear.
^ Use only the type-specific brake pads in the Porsche Spare Parts Catalogue.
The core of the warning contact line must not be left exposed! Worn insulation is not significant!
If necessary, remove a little brake fluid from the expansion tank by suction to prevent overflow when the disc brake pad is pushed back!
1. Remove fastening screw at retainer pin. Next screw the M8 auxiliary screw into the retaining pin. Hold down expanding springs with a - screwdriver and remove retaining pin.
2. Remove warning contact line from brake caliper and expanding spring. Remove warning contacts from the brake disc pads.
3. Place piston resetting fixture (replaces P83) NR.144, see Workshop Equipment Manual, Chapter 2.4, on brake caliper between the disc brake pads and push the pads back evenly -direction arrows-.
4. Remove disc brake pads.
Installing front brake pads
WARNING:
Danger of accident if old parts are fitted on brake caliper.
^ This can cause malfunctions.
^ Fit new expanding spring, new retaining pin and new retaining pin screw on the brake caliper.
Do not grease the back of the disc brake pad!
The new disc brakes must be clean and free of grease!
Check disc brakes for wear. For wear limits see Technical Data!
The core of the warning contact line must not be left exposed! Worn insulation is not significant!
Use a new repair kit!
Observe correct tightening torques!
1. If necessary, push brake piston back into its original position using the piston resetting fixture (replaces P83) NR.144, see Workshop Equipment Manual, Chapter 2.4.
2. Fit new disc brake pads.
Note:
^ Make sure that the retaining pin is inserted in the correct position. The flat side surfaces prevent the retaining pin from twisting in the brake caliper.
3. Install expanding spring. Center the retaining pin in the bore with the M8 auxiliary screw. To do so, push retaining pin back with auxiliary screw and push retaining pin through. Remove auxiliary screw and fit fastening screw at retaining pin with specified tightening torque!
4. Install warning contact line at disc brake pads and expanding spring -arrows-. The cable guide in the expanding spring must be at the bottom!
5. Position disc brake pads by operating the brake several times.
6. Check brake fluid level and correct if necessary. The brake fluid level must lie within the - MAX - MIN marking.
Bedding in the brake pads
New brake pads require a bedding-in period of approximately 200 km! Only then do they achieve their best friction and wear coefficient! During this period, the brakes should only be subjected to full stress at high speed in emergencies!
Subsequent work
Mount wheel.