For replacing the brake pads on the sliding calipers follow this procedure; turn the cap, screwed on the brake fluid reservoir counterclockwise, remove the lug nuts on the wheel, jack up the vehicle to a safe height, secure it on jack stands and block opposite wheels. Take off the wheels and check the
Brake Disc on it, but do not forget to cleanse the assembly with a brake system cleaner before their dismantling. Attached to the caliper is a large C-clamp used to force down the piston or multiple pistons depending on the design as well as the inner and outer brake pads, in order to fully remove the caliper with the help of the lower mounting bolt. Remove and clean and lubricate the guide pins of the caliper and then re-fit the pads and tighten the calipers with the help of the mounting bolts and make sure to tighten up the nuts tightly. After installation apply the brake pedal to retract the pads onto the disc and check the brake fluid level. When dealing with fixed calipers, there is need to put some cardboard in between the wheel and the disc before resenting lug nuts. Remove the brake pad wear sensor, if any the caliper bridge pin bolt, and gently push out the old pads in such a way that it cannot push out the piston. Debon the caliper edges, the new pad can then be fitted into the bracket and all related material tightened to the correct torque. Last of all, engage the brake pedal for making sure good contact is made and also to check the brake fluid before regular running. For J56 fixed calipers, use the recommendations in Figure 17 to replace one pad at a time and make certain that the wear sensors are positioned correctly; follow the same procedure for installing and checking the J56 fixed calipers.