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: Floor Mat
We recommend the use of Genuine Mazda floor mats. WARNING Make sure the floor mats are hooked on the retention pins to prevent them from bunching up under the foot pedals: Using a floor mat that is not secured is dangerous as it will interfere with the accelerator and brake pedal operation, ...

Mazda 6 Service Manual: Split Folding
By lowering the rear seatbacks the luggage compartment space can be expanded. WARNING Do not drive the vehicle with occupants on folded down seatbacks or in the luggage compartment.  Putting occupants in the luggage compartment is dangerous because seat belts cannot be fastened which coul ...