1. Remove the rear seat cushion.
2. Remove the bolts.

3. Remove the rear buckles.
4. Install in the reverse order of removal.
Front buckle removal/installation
Seat belt inspectionMazda 6 Service Manual: Heater core inspection
1. Remove the A/C unit. (See A/C UNIT REMOVAL/INSTALLATION.)
2. Remove the heater core from the A/C unit.
3. Inspect for cracks, damage, and coolant leakage.
If any problems are found, replace the heater core.
4. Inspect for bent fins.
If any are bent, use a flathead screwdriver to stra ...
Mazda 6 Service Manual: Fan motor
COOLING FAN REMOVAL/INSTALLATION
1. Disconnect the negative battery cable.
2. Remove the shroud panel. (See SHROUD PANEL REMOVAL/INSTALLATION.)
3. Remove the A/C pipe stay.
4. Remove the ATX pipe stay (ATX).
5. Remove in the order indicated in the table.
6. Install in the reverse order of remo ...