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: Inspection of sst (deployment tool)
Use the SST (Deployment tool) to deploy a live (undeployed) air bag module or pre-tensioner seat belt before disposing of it. Before using the SST (Deployment tool), inspect its operation. Inspection Procedure Follow the steps below to verify that the SST (Deployment tool) is operatin ...

Mazda 6 Service Manual: Cleaning the Floor Mats
Rubber floor mats should be cleaned with mild soap and water only. WARNING Do not use rubber cleaners, such as tire cleaner or tire shine, when cleaning rubber floor mats: Cleaning the rubber floor mats with rubber cleaning products makes the floor mats slippery. This may cause an accident whe ...