1. Remove the rear door glass.
2. Remove the inner handle.
3. Remove the rear door speaker.
4. Disconnect the power window motor connector, and power door lock actuator connector.
5. Remove the rear door harness from the rear door unit.
6. Remove the bolts.

7. Remove the rear door lock actuator hook from the rear door unit.
8. Pull the rear door unit slightly towards you, and while keeping the power window regulator or manual window regulator from catching on the door, remove the door unit from the door.
9. Pull out the inner handle cable and door lock knob cable from the hole.
10. For power window system-equipped vehicles, remove the power window motor and power window regulator from the door unit. For manual window system-equipped vehicles, remove the regulator handle and manual window regulator.

11. Install in the reverse order of removal.
Front door unit removal/installation
Front door latch and lock actuator removal/installationMazda 6 Service Manual: Antilock Brake System (ABS)
The ABS control unit continuously monitors the speed of each wheel. If one wheel
is about to lock up, the ABS responds by automatically releasing and reapplying
that wheel's brake.
The driver will feel a slight vibration in the brake pedal and may hear a chattering
noise from the brake system ...
Mazda 6 Service Manual: Rear wheel alignment
Specification (Unloaded)*1
Normal
Elevated*3
*1 : Engine coolant and engine oil are at specified level. Spare tire, jack
and tools are in designated position.
*2 : Difference between left and right must not exceed 1°30'.
*3 : Distance between wheel center and fender brim is 392 mm {15.4 ...