A/C Unit Removal/Installation

Remove battery cover.
Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [LF] .)
Discharge the refrigerant from the system. (See REFRIGERANT RECOVERY .) (See REFRIGERANT CHARGING .)
Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT [LF] .)
Disconnect from A/C unit in the order in the chart in illustration.
CAUTION:
- If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and abnormal noise or other malfunction could occur. Always plug open fittings immediately after removing any refrigeration cycle parts.
  
  Fig 1: Cooler Pipes And Heater Hose With Torque Specifications
  Courtesy of MAZDA MOTORS CORP.
Remove the A/C unit and air Distribution (Dist) unit. (See AIR DIST UNIT REMOVAL/INSTALLATION .)
Disassembly the A/C unit as shown in the illustration.

Fig 2: Air Dist Unit And A/C Unit
Courtesy of MAZDA MOTORS CORP.
Install in the reverse order of removal.
Perform the refrigerant system performance test. (See REFRIGERANT SYSTEM PERFORMANCE TEST .)
Inspect for engine coolant leakage. (See ENGINE COOLANT LEAKAGE INSPECTION [LF] .)