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: Seat Belt Extender
If your seat belt is not long enough, even when fully extended, a seat belt extender may be available to you at no charge from your Authorized Mazda Dealer. This extender will be only for you and for the particular vehicle and seat. Even if it plugs into other seat belts, it may not hold in the ...

Mazda 6 Service Manual: Clutch fluid replacement
Caution Be careful not to spill clutch fluid on a painted surface. If this should happen, wash it off immediately. Note Do not mix different brands of clutch fluid. Do not reuse the clutch fluid that was drained out. 1. Remove the under cover. 2. Draw the fluid from the reservoir ...