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: Crash zone sensor removal/installation
Warning Handling the crash zone sensor improperly can accidentally deploy the air bag module and pre-tensioner seat belt, which may seriously injure you. Read AIR BAG SYSTEM SERVICE WARNINGS before handling the crash zone sensor. (See SERVICE WARNINGS.) 1. Turn the ignition switch to LO ...

Mazda 6 Service Manual: Specifications
Engine Electrical System *1 Q-85 is designed for i-ELOOP system. Only Q-85 should be used to ensure correct operation of i-ELOOP system. Consult an Authorized Mazda Dealer for details. *2 Not for i-ELOOP system. *3 This spark plug provides the SKYACTIV-G engine with optimum performance. Co ...