Removal
Raise the rear of the vehicle and secure it on stands. Remove the corresponding rear wheel. Remove the rear brake pads. Clamp the rear brake hose.
Loosen (but do not unscrew) the brake hose fastening to the caliper. Unscrew the 2 caliper fastening bolts and remove it from the disc (see Fig. 9.39).
Rotate the caliper to unscrew it from the brake hose. Close the hose with a plug.
Disassembly
Wipe the caliper clean of dirt and dust. Remove the pistons from the caliper. To do this, you can apply low-pressure air to the hole for connecting the brake hose. Remove the dust caps from the grooves in the pistons and the sealing rings in the caliper holes. Clean all caliper parts with alcohol or clean brake fluid and wipe them. Inspect the pistons and caliper for wear and other damage. Lubricate the caliper cylinder and sealing rings with clean brake fluid and install them in the caliper cylinders.
Install the dust boots on the pistons so that their inner diameter fits into the piston grooves. Insert the pistons into the caliper and simultaneously press the dust boots into the caliper until they are firmly fixed
Installation
Remove the plug from the brake hose and screw the caliper onto it. Install the caliper and secure with two bolts. Finally tighten the brake hose to the caliper.
Install the brake pads. Remove air from the brake system. Install the wheel and lower the car.