Disassembly and Assembly of Caliper Assembly: Disassembly

WARNING: This page is about a different car, the 2006 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

Remove the sliding pin bolt, and then remove the pad, shim, shim cover, and pad retainer from the torque member and cylinder.
Remove the sliding pin and the sliding pin boot from the torque member.
Remove the retaining ring from the cylinder body using a screwdriver or suitable tool, as shown.

Fig 1: Removing The Retaining Ring From The Cylinder Body Using A Screwdriver Or Suitable Tool
Courtesy of NISSAN MOTOR CO., U.S.A.
Place a wooden block as shown, and blow air from union bolt mounting hole to remove pistons and piston boots.
WARNING: Do not place your finger in front of piston.

Fig 2: Blowing Air From Union Bolt Mounting Hole To Remove Pistons And Piston Boots
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove piston seals from cylinder body using a screwdriver or suitable tool, as shown.
CAUTION: Be careful not to damage cylinder inner wall.

Fig 3: Removing Piston Seals From Cylinder Body
Courtesy of NISSAN MOTOR CO., U.S.A.