Welcome to the forum. It is important to put the rear calipers (EPB-electronic parking brake) in the service position (fully retracted) before disassembling the calipers. Don't touch the brake pedal again until after the calipers are taken out of the service position. See the parts list for bolt sizes.
No special tool is listed to undo the fasteners.The adapter fasteners are supposed to be single use only.
No special tool is listed to undo the fasteners.The adapter fasteners are supposed to be single use only.