Disassembly and Assembly of Brake Caliper Assembly: Disassembly

WARNING: This page is about a different car, the 2009 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.

Remove cylinder body from the torque member. Refer to "REMOVAL AND INSTALLATION OF BRAKE CALIPER ASSEMBLY ".
Place a wooden block as shown, and blow air from union bolt hole to remove piston and piston boot. Discard the piston boot.
WARNING: Do not place your finger in front of piston.

Fig 1: Blowing Air From Union Bolt Mounting Hole To Remove Piston And Boot
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove piston seal using a suitable tool. Discard the piston seal.

CAUTION: Be careful not to damage the inner wall of cylinder body.

Fig 2: Removing Piston Seal

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