Disc Pad, Bolt Installation Note

WARNING: This page is about a different car, the 2018 Mazda CX-9. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

Before installing the caliper, verify that the dust seal does not protrude from the piston surface. Otherwise, the dust seal may be damaged and the braking performance could worsen.
Do not use a sharp-tipped tool when inserting the dust seal. Otherwise, the dust seal may be damaged.

Clean the exposed area of the piston.
Push the piston in using the commercially available disc brake expand tool.

Fig 1: Locating Disc Brake Expand Tool
Courtesy of MAZDA MOTORS CORP.
Verify that the dust seal installation position is lower than the piston surface as shown in the figure.

Fig 2: Dust Seal Installation Position Lower Piston Surface
Courtesy of MAZDA MOTORS CORP.
- If the dust seal protrudes from the piston surface, install the SST as shown in the figure and press the dust seal back to the correct position.
Fig 3: Installing Dust Seal Using SST
Courtesy of MAZDA MOTORS CORP.
Install the disc pads to the mounting support.
Return the caliper to the original position and install the bolt.