Mazda 6 Service Manual: No.23 a/c does not work sufficiently

No.22 vibration concerns (engine)

No.24 a/c is always on or a/c compressor runs continuously

Other materials:

Mazda 6 Service Manual: Timing chain
TIMING CHAIN REMOVAL/INSTALLATION Warning Fuel vapor is hazardous. It can very easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injures or death and damage. Fuel ...

Mazda 6 Service Manual: Lights-On Reminder
The lights-on reminder is operable when the time setting*1 of the auto headlight off function is off. If lights are on and the ignition is switched to ACC or off, a continuous beep sound will be heard when the driver's door is opened. *1 If the light switch is left on, the auto headlight off f ...