16. BRAKE SYSTEM MXU 550EXi/MXU 500i REAR BRAKE/PARKING BRAKE CALIPER DISASSEMBLY/INSPECTION/ ASSEMBLY DISASSEMBLY/INSPECTION Remove parking brake caliper (refer to the "REAR BRAKE/PARKING BRAKE CALIPER EMOVAL/INSTALLATION " section in this chapter). Remove the brake pad spring plate. Spring Plate Remove the piston from the brake caliper. If necessary, use compressed air to squeeze out the piston through the brake fluid inlet opening and place a shop towel under the caliper to avoid contamination caused by the removed piston. Inspect the caliper cylinder wall and piston surface for scratch, corrosion or other damages. If any abnormal condition is noted, replace the caliper. 16-40