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A/C Unit Removal/Installation: Notes

  1. Set the air mix mode to MAX COLD.
  2. Disconnect the negative battery cable.
  3. Discharge the refrigerant. (See REFRIGERANT CHARGING .)
  4. Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT [MZR 2.5] .)
  5. Remove the bolt.
    Fig 1: A/C Unit Bracket Bolt With Torque Specifications
    G08150878Courtesy of MAZDA MOTORS CORP.
    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.
  6. Disconnect from the A/C unit in the order indicated in the table.
    Fig 2: Identifying Cooler Pipe, Heater Hose And Cooler Hose (LO)
    G08150879Courtesy of MAZDA MOTORS CORP.
  7. Remove the following parts:
    1. Windshield wiper arm and blade (See WINDSHIELD WIPER ARM AND BLADE REMOVAL/INSTALLATION .)
    2. Front fender molding (See COWL GRILLE REMOVAL/INSTALLATION .)
    3. Cowl grille (See COWL GRILLE REMOVAL/INSTALLATION .)
    4. Center cowl grille (See CENTER COWL GRILLE REMOVAL/INSTALLATION .)
    5. Cowl panel (See COWL PANEL REMOVAL/INSTALLATION .)
    6. Front doors (See FRONT DOOR REMOVAL/INSTALLATION .)
    7. Sail garnish (See SAIL GARNISH REMOVAL/INSTALLATION .)
    8. Front scuff plate (See FRONT SCUFF PLATE REMOVAL/INSTALLATION .)
    9. Front side trim (See FRONT SIDE TRIM REMOVAL/INSTALLATION .)
    10. Center console box (See CENTER CONSOLE BOX REMOVAL/INSTALLATION .)
    11. Console panel (See CONSOLE PANEL REMOVAL/INSTALLATION .)
    12. Center console (See CENTER CONSOLE REMOVAL/INSTALLATION .)
    13. Shift lever knob (MTX)
    14. Selector lever knob (ATX) (See AUTOMATIC TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION .)
    15. Shift panel (See SHIFT PANEL REMOVAL/INSTALLATION .)
    16. Side wall (See SIDE WALL REMOVAL/INSTALLATION .)
    17. Front console (See FRONT CONSOLE REMOVAL/INSTALLATION .)
    18. Shift lever component (MTX)
    19. Selector lever component (ATX) (See AUTOMATIC TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION .)
    20. Side panel (See SIDE PANEL REMOVAL/INSTALLATION .)
    21. Glove compartment (See GLOVE COMPARTMENT REMOVAL/INSTALLATION .)
    22. Dashboard under cover (See DASHBOARD UNDER COVER REMOVAL/INSTALLATION .)
    23. Lower panel (passenger-side) (See LOWER PANEL REMOVAL/INSTALLATION .)
    24. Hood release lever (See HOOD LATCH AND RELEASE LEVER REMOVAL/INSTALLATION .)
    25. Lower panel (driver-side) (See LOWER PANEL REMOVAL/INSTALLATION .)
    26. Knee bolster (See KNEE BOLSTER REMOVAL/INSTALLATION .)
    27. Driver-side air bag module (See DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM] .) (See DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION [STANDARD DEPLOYMENT CONTROL SYSTEM] .)
    28. Steering wheel (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION .)
    29. Column cover (See COLUMN COVER REMOVAL/INSTALLATION .)
    30. Combination switch (See COMBINATION SWITCH REMOVAL/INSTALLATION .)
    31. Instrument cluster (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .)
    32. Switch panel (See SWITCH PANEL REMOVAL/INSTALLATION .)
    33. Information display (See INFORMATION DISPLAY REMOVAL/INSTALLATION .)
    34. Climate control unit (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER] .)
    35. Audio unit (See AUDIO UNIT REMOVAL/INSTALLATION .)
    36. Joint cover (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION .)
    37. Steering shaft (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION .)
    38. Front heat duct (See FRONT HEAT DUCT REMOVAL/INSTALLATION .)
    39. A-pillar trim (See A-PILLAR TRIM REMOVAL/INSTALLATION .)
  8. Remove the A/C unit installation nut from the engine compartment, then remove the A/C unit.
    Fig 3: A/C Unit Installation Nut With Torque Specifications
    G08150880Courtesy of MAZDA MOTORS CORP.
    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.
  9. Remove the rear heat duct (1), (2). (See REAR HEAT DUCT REMOVAL/INSTALLATION .)
  10. Remove the heater case.
    Fig 4: Identifying Heater Case, A/C Unit, Screw And Tabs
    G08150881Courtesy of MAZDA MOTORS CORP.
    • Remove the screws.
    • Pull up tab A in the direction shown by the arrow shown and remove it from the A/C unit.
    • Pull up tabs B in the direction shown by the arrow shown and remove it from the A/C unit.
  11. Disconnect the drain hose connected to the A/C unit. (See DRAIN HOSE INSTALLATION NOTE .)
  12. Remove the nuts and bolts for installing the dashboard to the body.
  13. Remove the dashboard with A/C unit. (See DASHBOARD REMOVAL/INSTALLATION .)
  14. Disconnect the following connectors:
    • Rear vent actuator connector
      Fig 5: Identifying Rear Vent Actuator Connector
      G08150882Courtesy of MAZDA MOTORS CORP.
    • Airflow mode actuator connector
      Fig 6: Identifying Airflow Mode Actuator Connector
      G08150883Courtesy of MAZDA MOTORS CORP.
    • Air mix actuator connector
      Fig 7: Identifying Air Mix Actuator Connector, Evaporator Temperature Sensor Connector And Front Power MOS FET Connector
      G08150884Courtesy of MAZDA MOTORS CORP.
    • Evaporator temperature sensor connector
    • Front power MOS FET connector
    • Front blower motor connector
      Fig 8: Identifying Front Blower Motor Connector
      G08150885Courtesy of MAZDA MOTORS CORP.
    • Air intake actuator connector
      Fig 9: Identifying Air Intake Actuator Connector
      G08150886Courtesy of MAZDA MOTORS CORP.
  15. Remove the nuts for installing the A/C unit to the dashboard.
    Fig 10: Dashboard And Nuts With Torque Specifications
    G08150887Courtesy of MAZDA MOTORS CORP.
  16. Remove the A/C unit from the dashboard.
    Fig 11: Identifying A/C Unit And Dashboard
    G08150888Courtesy of MAZDA MOTORS CORP.
  17. Install in the reverse order of removal. (See A/C UNIT INSTALLATION NOTE .)
  18. Inspect for engine coolant leakage. (See ENGINE COOLANT LEAKAGE INSPECTION [MZR 2.5] .)
  19. Perform the refrigerant system performance test. (See REFRIGERANT SYSTEM PERFORMANCE TEST .)
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