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: Replacing Windshield Wiper Blades
When the wipers no longer clean well, the blades are probably worn or cracked. Replace them. CAUTION To prevent damage to the wiper arms and other components, do not try to sweep the wiper arm by hand. NOTE When raising both windshield wiper arms, raise the driver's side wiper arm first. W ...

Mazda 6 Service Manual: Gate operator/Canadian Programming
Canadian radio-frequency laws require transmitter signals to “time-out” (or quit) after several seconds of transmission — which may not be long enough for HomeLink to pick up the signal during programming. Similar to this Canadian law, some U.S. gate operators are designed to “time-out ...