Disassembly and Assembly of Brake Caliper: Disassembly

WARNING: This page is about a different car, the 2006 Nissan Xterra. 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 hole to remove pistons and piston boots.
CAUTION: Do not get your fingers caught in piston.

Fig 1: Removing Piston And Piston Boots
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove piston seal from cylinder body using a suitable tool.

CAUTION:

Be careful not to damage cylinder inner wall.
Do not reuse piston seal.

Fig 2: Removing Piston Seal

Courtesy of NISSAN MOTOR CO., U.S.A.