463619 Removing and Installing Front Disc Brake Pads
WM 463619 Removing and installing front disc brake pads
Preliminary work
Raise the vehicle -> 4000V000 Lifting the vehicle
Remove wheel -> 440519 Removing and installing wheel - section on "Removing" Removal and Replacement.
Removing
Removing 18-inch plus front brake pads (as of model year 2008)
1. Carefully press the brake pads back using water pump pliers.
2. Unclip the brake pad wear indicator wire.
Information
- Never use an impact bolter to loosen and tighten the brake caliper on the wheel carrier.
Information
- Do not open the brake system.
- Do not loosen the brake hose from the brake caliper when loosening the brake caliper.
3. Press the brake hose out of the bracket on the wheel carrier.
4. Get the transmission jack ready for the brake caliper and loosen the brake caliper -arrows-.
18-inch plus brake caliper connection
5. Place the brake caliper on the transmission jack.
Setting brake caliper down
6. Carefully slide a commercially available screwdriver between the brake pad/brake caliper and lever the brake pad out by turning the screwdriver slightly. When doing this, make sure not to damage the dust boots on the brake pistons -direction arrows-.
Removing brake pads
Installing
Installing 18-inch plus front brake pads (as of model year 2008)
WARNING
Installation of brake pads with the wrong brake pad quality
- Longer braking distance
- More wear on brake pads
-> 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.
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 details of wear limits, see -> 46 Technical data/brake wear limits.
The core of the warning contact wire must not be left exposed. It does not matter if the insulation is worn.
Observe tightening torques -> 46 Tightening torques for brake mechanism.
Installation is performed in reverse order.
Information
The procedure for installing a brake pad is described here. Two brake pads must always be fitted in the brake caliper.
1. Place the disc brake pad on the sealing surface of the pad retaining springs -arrows-.
Fitting brake pad
2. Press the brake pad into the brake caliper with slight pressure and slide it onto the pad retaining pin -arrows-.
Positioning brake pad
3. Fit the disc brake pad -direction arrow-.
Fitting brake pad
4. Fit the brake caliper and route the brake hose.
5. Clip in the wear indicator connector.
6. Position disc brake pads by operating the brake several times.
7. Check the brake fluid level and correct it if necessary. The brake fluid level must be between the -MIN and MAX markings-.
Subsequent work
1. Mount wheel -> 440519 Removing and installing wheel - section on "Installing" Removal and Replacement.
Information
Bedding in the brake pads
New brake pads require a bedding-in period of approx. 200 km (124 miles). 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.