Contents: Removal ↓ Installation ↓
Removal
1. Loosen the front wheel mounting bolts, then raise the front of the car and secure it on stands. Unscrew the mounting bolts and remove the wheel.
Warning: Always replace all pads on one axle of the vehicle, even if only one pad has reached the wear limit. If brake pads are to be reinstalled, they must be marked before removal.
2. If equipped, remove the wear sensor from the inner brake pad and disconnect the sensor electrical connector.
3. Using a screwdriver blade as a lever from the outside of the caliper, remove the retaining spring.
4. Remove the dust caps from the inner ends of the guide bolts.
5. Unscrew the guide pins from the caliper.
6. Raise the caliper with the inner shoe and, using soft wire, tie it to the front strut.
Warning: The brake caliper must not hang on the brake hose. The brake hose must not be stretched or twisted.
7. Remove the inner pad from the caliper piston and the outer pad from the caliper bracket.
Installation
Position of front brake pads before installing the caliper
Warning: Do not press the brake pedal when the brake pads are removed.
Warning: After installing new brake pads, avoid sudden braking during the first 200 km of vehicle travel.
1. Clean dust and dirt from the caliper and rust from the edge of the brake disc. If the pads are suitable for further use, clean them using a wire brush and rag.
2. Check the brake disc for cracks, especially around the wheel bolt holes, and for wear or mechanical damage, and replace it if necessary.
3. Measure the thickness of the brake disc.
4. If new brake pads are to be installed, use a special tool to press the piston into the caliper. You can use a wooden rod or a hammer handle to press the piston into the caliper. Make sure that the piston is not warped and that the surfaces of the piston and dust boot are not damaged. When the piston is pushed in, the brake fluid is forced out of the brake cylinder into the expansion tank, so constantly monitor the fluid level in the tank and, if necessary, pump out a small amount of it from the tank.
5. Check that the recesses on the caliper piston are aligned vertically. If necessary, rotate the piston to the correct position.
6. Apply a thin coat of brake lubricant to the surfaces of the brake pads that mating with the caliper.
7. Install the inner shoe onto the caliper, with the spring clip seated in the piston recess.
8. Install the outer brake shoe.
9. Install the caliper with the inner shoe on the caliper holder. Screw in the caliper guide pins and tighten them to 25 Nm.
10. Install the dust caps onto the caliper guide pins.
11. Install the retaining spring on the caliper. The ends of the spring should be located in the caliper holes.
12. If available, install a new wear sensor on the inner brake shoe.
13. Replace the brake pads on the second front wheel in the same manner.
14. Install the wheels and lower the car to the ground. Tighten the mounting bolts to 120 Nm.
15. Press the brake pedal several times to press the brake pads against the brake disc.
16. Check the brake fluid level in the reservoir.
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