Caution
Specified fluid

Note
1. Remove the bleeder cap and attach a vinyl tube to the bleeder screw.
2. Place the other end of the vinyl tube in a clear, fluid-filled container.
3. One person should depress the brake pedal a few times, and then hold it in the depressed position.
4. A second person should loosen the bleeder screw, drain out the fluid and close the screw using the SST
.
Tightening torque Front:6.9-9.8 N·m
{71-99 kgf·cm, 62-86 in·lbf} Rear:5.9-8.8 N·m
{61-89 kgf·cm, 53-77 in·lbf}

5. Repeat steps 3 and 4 until no air bubbles are seen.
6. Bleed air from each component by following the procedure above.
7. After air bleeding, check the following:
Vacuum hose check valve inspection (power brake unit)Mazda 6 Service Manual: Turning the Engine Off
WARNINGDo not stop the engine while the vehicle is moving: Stopping the
engine while the vehicle is moving for any reason other than in an emergency is
dangerous. Stopping the engine while the vehicle is moving will result in reduced
braking ability due to the loss of power braking, which coul ...
Mazda 6 Service Manual: Expansion valve removal/installation
1. Disconnect the negative battery cable.
2. Discharge the refrigerant from the system. (See RECOVERY.) (See CHARGING.)
Caution
If moisture or foreign material enters the refrigeration cycle,
cooling ability will be lowered and abnormal noise will occur. Always
immediately plug open fitt ...