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: Replacing Exterior Light Bulbs
Headlights (With LED headlights) Low/High beam bulbs The LED bulb cannot be replaced as a single unit because it is an integrated unit. The LED bulb has to be replaced with the unit. We recommend an Authorized Mazda Dealer when the replacement is necessary. Headlights (With halogen headlight ...

Mazda 6 Service Manual: Front bumper removal/installation
1. Disconnect the negative battery cable. 2. Remove in the order indicated in the table. 3. Install in the reverse order of removal. Front Bumper Removal Note 1. Pull the front bumper ends (wheel arch) outward to disengage from the bumper slider. Caution If only one side of the front ...