Dust Seal, Piston Assembly 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.

Assemble the dust seal to the piston.
Assemble the lip of the dust seal to the groove of the caliper body with the dust seal assembled to the piston as shown in the figure.

Fig 1: Identifying Dust Seal And Piston Assembly
Courtesy of MAZDA MOTORS CORP.
Rotate the piston clockwise using the SST slowly and push the piston inwards completely.
Verify that the dust seal is installed into the groove of the piston securely.

Fig 2: Rotating Piston Clockwise Using SST
Courtesy of MAZDA MOTORS CORP.