B-Pillar Lower Trim Removal/Installation

Remove the front scuff plate. (See FRONT SCUFF PLATE REMOVAL/INSTALLATION .)
Remove the rear scuff plate. (See REAR SCUFF PLATE REMOVAL/INSTALLATION .)
Partially peel back the seaming welts.

Fig 1: Peeling Back Seaming Welts
Courtesy of MAZDA MOTORS CORP.
Hold the shaded areas shown in the figure, and while pulling the B-pillar lower trim in the directions of arrows (1) and (2), remove the hooks and pins.

Fig 2: Pulling B-Pillar Lower Trim
Courtesy of MAZDA MOTORS CORP.
Hold the shaded areas shown in the figure, remove the B-pillar lower trim by pulling it in the direction of the arrow to detach the clips and pins.

Fig 3: Detaching Clips And Pins Of B-Pillar Lower Trim
Courtesy of MAZDA MOTORS CORP.
Install in the reverse order of removal.