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: Drive shaft removal/installation
Caution Performing the following procedures without first removing the ABS wheel-speed sensor may possibly cause an open circuit in the harness if it is pulled by mistake. Before performing the following procedures, remove the ABS wheel-speed sensor (axle side) and fix it to an appropri ...

Mazda 6 Service Manual: Dynamometer
When inspecting and servicing the power train on the dynamometer or speed meter tester, pay attention to the following: - Place a fan, preferably a vehicle-speed proportional type, in front of the vehicle. - Make sure the vehicle is in a facility with an exhaust gas ventilation ...