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: HomeLink Wireless Control System (Some models)
NOTE
HomeLink and HomeLink house icon are registered trademarks of Gentex Corporation.
The HomeLink system replaces up to 3 hand-held transmitters with a single built-in
component in the auto-dimming mirror. Pressing the HomeLink button on the auto-dimming
mirror activates garage doors, gates ...
Mazda 6 Service Manual: Liftgate adjustment
1. Measure the gap and height between the liftgate and the body.
2. If not as specified, loosen the liftgate hinge installation bolts or the
liftgate striker installation screws, and reposition the liftgate.
Clearance
a: 3.0-7.0 mm {0.12-0.28 in}
b: -1.0-3.4 mm {-0.04-013 in}
c: 2.8-5.2 mm ...