The rear armrest in the center of the rear seatback can be used (no occupant in the center seat) or placed upright.

WARNING
Never put your hands and fingers around the moving parts of the seat and armrest:
Putting your hands and fingers around the moving parts of the seat and armrest is dangerous as they could get injured.
Split Folding
Head RestraintsMazda 6 Owners Manual: Front door lock actuator inspection
Door Lock Actuator
1. Disconnect the front door lock actuator connector.
2. Apply battery positive voltage to the front door lock actuator terminals
and inspect the operation of the front door lock actuator.
If not as specified, replace the front door lock actuator.
With double locking ...
Mazda 6 Owners Manual: Variable valve timing actuator removal/installation
L3
Caution
Variable valve timing actuator can not be disassembled because it
is a precision unit.
Note
Variable valve timing actuator camshaft sprocket is integrated
with the variable valve timing actuator and cannot be disassembled.
1. Follow the timing chain removal/installati ...