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: Foreword
When the customer reports a vehicle malfunction, check the malfunction indicator lamp (MIL), HOLD indicator light flashing, and PCM memory for diagnostic trouble code (DTC), then diagnose the malfunction according to following flowchart. - If the DTC exists, diagnose the applicable ...

Mazda 6 Service Manual: Foot Brake
This vehicle has power-assisted brakes that adjust automatically through normal use. Should power-assist fail, you can stop by applying greater force than normal to the brake pedal. But the distance required to stop will be greater than usual. WARNING Do not coast with the engine stalled or t ...