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: Oil pressure switch removal/installation
Warning When the transaxle and ATF are hot, they can badly burn. Turn off the engine and wait untill they are cool before replacing ATF. 1. Disconnect the negative battery cable. 2. Remove the under cover. 3. Disconnect the cord assembly connector. 4. Remove the oil pressure switch. ...

Mazda 6 Service Manual: Outside Temperature Display
When the ignition is switched ON, the outside temperature is displayed. NOTE Under the following conditions, the outside temperature display may differ from the actual outside temperature depending on the surroundings and vehicle conditions: Significantly cold or hot temperatures. Sudden ...