Removal
1. Raise the rear of the car and secure it on stands. Remove the wheel.
2. Clamp the brake hose between the rear axle and the underbody using a suitable clamp, making sure that the hose is not damaged by the clamp.
3. Loosen the nut securing the brake line to the caliper.
4. Remove the brake pads.
5. Unscrew the caliper mounting bolts.
6. Unscrew the union nut securing the brake line to the caliper and remove the caliper.
Caliper repair
Correct piston placement in the rear caliper
1. Carefully clean the caliper of brake dust and dirt.
2. Remove the piston from the caliper, which can be done by using low-pressure air supplied to the brake cylinder through the hole for connecting the brake hose. In this case, install a wooden block instead of brake pads.
3. Remove the sealing ring from the groove in the caliper bore.
4. Press the guide bushings out of the caliper body.
5. Wash all parts in methylated spirits or clean brake fluid and wipe them dry.
6. Dip the piston and new piston seal ring in brake fluid and apply a thin layer of brake fluid to the piston bore in the caliper.
7. Install the sealing ring into the caliper bore.
8. Install the dust boot on the piston so that the inner diameter of the boot fits into the groove of the piston. Insert the piston into the caliper and at the same time insert the outer edge of the dust boot into the caliper until it locks into place.
Installation
1. Install the caliper onto the brake disc, then screw on the brake line.
2. Apply a product to the threads of the caliper mounting bolts to prevent them from loosening and secure the caliper with bolts.
3. Install the brake pads.
4. Finally tighten the brake pipe mounting nut.
5. Bleed the brake system.
6. Install the wheel and lower the vehicle.
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