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

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Mazda 6 Service Manual: Front brake (disc) removal/installation
1. Remove in the order indicated in the table. 2. Install in the reverse order of removal. 3. After installation, depress the pedal a few times, rotate the wheel by hand, and verify that the brake does not drag. Disc Plate Removal Note Mark the wheel hub bolt and disc plate before removal ...

Mazda 6 Service Manual: Seat Operation
1. Seat Slide (Manual Seat) To move a seat forward or backward, raise the lever and slide the seat to the desired position and release the lever. Make sure the lever returns to its original position and the seat is locked in place by attempting to push it forward and backward. (Power Seat) ...