1. Remove the clamps and vacuum hose.
2. Apply both suction and pressure to the engine-side hose, and verify that air blows only toward that side.

Air bleeding
Brake pedal inspectionMazda 6 Service Manual: Tire Maintenance
Improper or inadequate vehicle maintenance can cause tires to wear abnormally.
Here are some important maintenance points:
Tire Inflation Pressure
Inspect all tire pressure monthly (including the spare) when the tires are cold.
Maintain recommended pressures for the best ride, top handling, an ...
Mazda 6 Service Manual: Heated Steering Wheel (Some models)
The grips on the left and right of the steering wheel can be warmed up.
The ignition must be switched ON.
Press the switch to turn on the heated steering wheel. The heated steering wheel
operates for about 30 minutes and then turns off automatically.
The indicator light illuminates when the h ...