Mazda 6 Service Manual: No.20 noise occurs at idle when vehicle is stopped in all positions/ranges

No.19 excessive shift shock on torque converter clutch (tcc)

No.21 noise occurs at idle when vehicle is stopped in d, s, l ranges, or in r position

Other materials:

Mazda 6 Service Manual: No.8 no cool air
When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while performing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions. If there is a problem, check to make sure connectors, terminals ...

Mazda 6 Service Manual: Front combination light removal/installation
Caution Incorrect servicing of the discharge headlights could result in electrical shock. Before servicing the discharge headlights, always refer to the Discharge headlight service warnings. (See DISCHARGE HEADLIGHT SERVICE WARNINGS) Note When the ignition switch is turned to ON, ...