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: Engine Coolant Temperature Gauge (Without Multi-information Display)
Displays the engine coolant temperature. The white gauge indicates that the engine coolant temperature is low, and the red gauge indicates that the engine coolant temperature is high and overheating. CAUTION If the engine coolant temperature gauge indicator flashes, there is a possibility ...

Mazda 6 Service Manual: Rear door trim removal/installation
1. Disconnect the negative battery cable if equipped with power window system. 2. Remove the regulator handle if equipped. 3. Open the cap using a small screwdriver, then remove the screw. 4. Remove the inner handle cover. 5. Remove the cover, then remove screw. 6. Disengage clips A from th ...