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: Climate control unit inspection
Full-auto Air Conditioner 1. Connect the all center panel connectors. 2. Turn the ignition switch to ON position. 3. Measure the voltage at each climate control unit terminal and refer to the terminal voltage list. If not as specified, inspect the parts listed under Action and the relate ...

Mazda 6 Service Manual: Mass air flow (maf) sensor inspection
Voltage Inspection Note Perform the following inspection only when directed. 1. Visually inspect for the following on the MAF sensor. Damage Cracks Terminal bends Terminal rust - If any of the above are found, replace the MAF sensor. - If the MAF PID value is out of specifi ...