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: Clutch master cylinder disassembly/assembly
1. Disassemble in the order indicated in the table. 2. Assemble in the reverse order of disassembly. Snap Ring Disassembly/Assembly Note Hold the piston down using a cloth-wrapped pin punch. If disassembling, remove the snap ring; if assembling, install it. ...

Mazda 6 Service Manual: A/c unit removal/installation
1. Disconnect the negative battery cable. 2. Discharge the refrigerant from the system. (See RECOVERY.) (See CHARGING.) 3. Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT.) 4. Remove the dashboard. (See DASHBOARD REMOVAL/INSTALLATION.) 5. Remove the theft-deterrent control module. (See ...