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: Washer Fluid
Inspecting Washer Fluid Level WARNING Use only windshield washer fluid or plain water in the reservoir: Using radiator antifreeze as washer fluid is dangerous. If sprayed on the windshield, it will dirty the windshield, affect your visibility, and could result in an accident. Using Washer Flu ...

Mazda 6 Service Manual: Wheel hub, hub spindle pre-inspection
Wheel Bearing Play Inspection 1. Position a dial indicator against the wheel hub. 2. Push and pull the wheel hub by hand in the axial direction and measure the wheel bearing play. Maximum wheel bearing play 0.05 mm {0.002 in} 3. If the bearing play exceeds the specification, replace a ...