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: General procedures
PRECAUTION (SUSPENSION) Wheels and Tires Removal/Installation When a wheel is installed, tighten it to 88-118 N·m {9.0-12.0 kgf·m, 65.0-87.0 ft·lbf}. Suspension Links Removal/Installation Tighten any part of the suspension that uses rubber bushings only after the vehicle has been lowered ...

Mazda 6 Service Manual: Climate control unit removal
1. Disconnect the negative battery cable. 2. Disconnect the air mix and airflow mode wires from each wire clamp and link. (Manual air conditioner) 3. Remove the center panel. (See CENTER PANEL MODULE REMOVAL/INSTALLATION.) 4. Remove the screws and climate control unit. (Full-auto air conditione ...