Mazda 6 Service Manual: No.22 vibration concerns (engine)

No.21 engine noise

No.23 a/c does not work sufficiently

Other materials:

Mazda 6 Service Manual: Turn Signals
Move the signal lever down (for a left turn) or up (for a right turn) to the stop position. The signal will self-cancel after the turn is completed. If the indicator light continues to flash after a turn, manually return the lever to its original position.   The turn signal indicators in ...

Mazda 6 Service Manual: Steering wheel and column inspection
Steering Wheel Play Inspection With the wheels in the straight-ahead position, gently turn the steering wheel to the left and right and verify that the play is within the specification. If the play exceeds the specification, either the steering joints are worn or the backlash of the stee ...