Mazda 6 Service Manual: No.22 vibration concerns (engine)

No.21 engine noise

No.23 a/c does not work sufficiently

Other materials:

Mazda 6 Service Manual: Egr valve removal/installation
1. Disconnect the negative battery cable. 2. Disconnect the EGR valve connector. 3. Remove in the order indicated in the table. 4. Install in the reverse order of removal. Water Hose Removal Note Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT.) EGR Valve Removal Note 1. Re ...

Mazda 6 Service Manual: Obd drive mode
Performing the Drive Mode inspects the OBD system for proper operation. The Drive Mode must be performed to ensure that no additional DTCs are present. During Drive Mode, the following systems are inspected: - Oxygen sensor (HO2S) - Oxygen sensor heater - Catalytic converter (TW ...