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: Direct Mode
Direct mode can be used for temporarily switching gears by operating the steering shift switch while the vehicle is being driven with the selector lever in the D range. While in direct mode, the D and M indication illuminate and the gear position in use is illuminated. Direct mode is canceled ...

Mazda 6 Service Manual: Input/turbine speed sensor removal/installation
1. Disconnect the negative battery cable. 2. Remove the battery and battery tray. 3. Remove the air cleaner component. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.) 4. Disconnect the input/turbine speed sensor connector. 5. Remove the input/turbine speed sensor. 6. Apply ATF to a new O-ring ...