The driver's air bag is mounted in the steering wheel.
When air bag crash sensors detect a frontal impact of greater than moderate force, the driver's air bag inflates quickly helping to reduce injury mainly to the driver's head or chest caused by directly hitting the steering wheel. For more details about air bag deployment, refer to "SRS Air Bag Deployment Criteria".
(With Front Passenger Occupant Classification System)
The driver's dual-stage air bag controls air bag inflation in two energy stages. During an impact of moderate severity, the driver's air bag deploys with lesser energy, whereas during more severe impacts, it deploys with more energy.

Front Seat Belt Pretensioners
Front Passenger Air BagMazda 6 Owners Manual: Refrigerant pressure switch removal/installation
1. Remove the battery.
2. Discharge the refrigerant from the system. (See RECOVERY.) (See CHARGING.)
3. Loosen the refrigerant pressure switch using two spanners.
4. Remove in the order indicated in the table.
5. Install in the reverse order of removal.
Refrigerant Pressure Switch Installat ...
Mazda 6 Owners Manual: Refrigerant system service procedures
GAS CHARGING SET INSTALLATION
1. Fully close the valves of the SST (49 C061 001).
2. Connect the SSTs (49 C061 002, 49 C061 003) to the high- and
low-pressure side joints of the SST (49 C061 001).
3. Connect the SSTs (49 C061 006A, 49 C061 007) to the ends of the
SSTs (49 C061 002, 49 C061 00 ...