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: Trunk Lid
WARNING Never allow a person to ride in the trunk: Allowing a person to ride in the trunk is dangerous. The person in the trunk could be seriously injured or killed during sudden braking or a collision. Do not drive with the trunk lid open: Exhaust gas in the cabin of a vehicle is dangerous. ...

Mazda 6 Service Manual: Oil seal (differential) replacement
1. On level ground, jack up the vehicle and support it evenly on safety stands. 2. Drain the oil from the transaxle. 3. Remove the front wheels and splash shields. 4. Separate the drive shaft and joint shaft from the transaxle. (See DRIVE SHAFT REMOVAL/INSTALLATION.) (See JOINT SHAFT REMOVAL/ ...