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: Headlights
Turn the headlight switch to turn the headlights and other exterior lights on or off. When the lights are turned on, the lights-on indicator light in the instrument cluster turns on. NOTE If the light switch is left on, the lights will automatically switch off approximately 30 seconds ...

Mazda 6 Service Manual: Bonnet adjustment
Gap Adjustment 1. Remove the front fender. 2. Loosen the bonnet hinge installation bolts and reposition the bonnet. 3. Tighten the bolts. 4. Verify that the gap between the bonnet and the body is within the specification. Clearance a: 2.5-4.5 mm {0.08-0.17 in} Height Adjustment 1 ...