Rear Wheel Bearing Excessive Play Inspection

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

Switch to the maintenance mode.
Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
Remove the wheel and tire. (See WHEEL AND TIRE REMOVAL/INSTALLATION .)
Disconnect the electric parking brake motor gear unit connector. (See ELECTRIC PARKING BRAKE MOTOR GEAR UNIT REMOVAL/INSTALLATION .)
Remove the rear ABS wheel-speed sensor and the bracket from the wheel hub component.

Fig 1: Rear ABS Wheel-Speed Sensor, Bracket And Bolts With Torque Specification (2WD, AWD)
Courtesy of MAZDA MOTORS CORP.
Disconnect the rear ABS wheel-speed sensor wiring harness and set it aside so that it does not interfere with the servicing.
Remove the rear brake caliper component and suspend it out of the way using a cable. (See REAR BRAKE DISC REMOVAL/INSTALLATION (US) .)
Remove the rear disc plate. (See REAR BRAKE DISC REMOVAL/INSTALLATION (US) .)
Install the magnetic base and dial gauge as shown in the illustration and measure the rear wheel bearing axial excessive play.

Courtesy of MAZDA MOTORS CORP.

Rear wheel bearing maximum play

0.05 mm {0.002 in}
- If it exceeds the maximum specification, replace the wheel hub component. (See REAR BRAKE DISC REMOVAL/INSTALLATION (US) .)
End the maintenance mode.