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: Transaxle oil inspection
1. Park the vehicle on level ground. 2. Remove the oil level plug and washer. 3. Verify that the oil is near the brim of the plug port. If the oil level is lower than the low level, add the specified amount and type of oil through the oil level plug hole. Specified oil grade API Ser ...

Mazda 6 Service Manual: Engine disassembly/assembly
1. Disconnect the engine and automatic transaxle. (ATX) (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION.) 2. Disconnect the engine and manual transaxle. (MTX) (See MANUAL TRANSAXLE REMOVAL/INSTALLATION.) 3. Remove the intake-air system. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.) 4. Remove ...