Disassembly and Assembly of Brake Caliper Assembly: Disassembly

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

Remove sliding pin bolt, and then remove the pad, shim, shim cover, and pad retainer from the torque member.
Remove sliding pins and sliding pin boots from torque member.
Place a wooden block as shown, and blow air from union bolt mounting hole to remove pistons and piston boots.
CAUTION: Do not get your fingers caught in piston.

Fig 1: Blowing Air From Union Bolt Mounting Hole To Remove Pistons And Piston Boots
Courtesy of NISSAN MOTOR CO., U.S.A.
Using a flat-bladed screwdriver, remove piston seal from cylinder body.
CAUTION: Be careful not to damage cylinder body inner wall.

Fig 2: Removing Piston Seal
Courtesy of NISSAN MOTOR CO., U.S.A.