Piston Disassembly Note

WARNING: This page is about a different car, the 2014 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Rotate the piston counter-clockwise using the SST , remove the piston from the caliper body.

Fig 1: Removing Piston From Caliper Body
Courtesy of MAZDA MOTORS CORP.