A/C Unit Removal/Installation: Notes

Disconnect the negative battery cable.
Discharge the refrigerant from the system. (See REFRIGERANT RECOVERY .) (See REFRIGERANT CHARGING .)
Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT .)
Disconnect from the A/C unit in the order indicated in the figure.
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 Hoses/Pipes Removal/Installation & Tightening Specifications
Courtesy of MAZDA MOTORS CORP.
Remove the following parts:
1. Front doors (See FRONT DOOR REMOVAL/INSTALLATION .)
2. Ashtray panel (See CONSOLE REMOVAL/INSTALLATION .)
3. Console (See CONSOLE REMOVAL/INSTALLATION .)
4. Shift lever component (MTX) (See SHIFT MECHANISM REMOVAL/INSTALLATION .)
5. Selector lever component (ATX) (See SELECTOR LEVER COMPONENT REMOVAL/INSTALLATION .)
6. Decoration panel (See DECORATION PANEL REMOVAL/INSTALLATION .)
7. Front scuff plate (See FRONT SCUFF PLATE REMOVAL/INSTALLATION .)
8. Front side trim (See FRONT SIDE TRIM REMOVAL/INSTALLATION .)
9. Glove compartment (See GLOVE COMPARTMENT REMOVAL/INSTALLATION .)
10. Shower ducts (LH, RH)
  
  Fig 2: Removing Shower Ducts
  Courtesy of MAZDA MOTORS CORP.
11. PJB (See PASSENGER JUNCTION BOX (PJB) REMOVAL/INSTALLATION .)
12. Car-navigation unit (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION .)
13. Lower panel (See LOWER PANEL REMOVAL/INSTALLATION .)
14. Column cover (See COLUMN COVER REMOVAL/INSTALLATION .)
15. Steering shaft (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION .)
16. A-pillar trim (See A-PILLAR TRIM REMOVAL/INSTALLATION .)
17. Center panel module (See CENTER PANEL MODULE REMOVAL/INSTALLATION .)
18. Windshield wiper arm and blade (See WINDSHIELD WIPER ARM AND BLADE REMOVAL/INSTALLATION .)
19. Cowl grille (See COWL GRILLE REMOVAL/INSTALLATION .)
20. Cowl panel (See COWL GRILLE REMOVAL/INSTALLATION .)
21. Windshield wiper motor (See WINDSHIELD WIPER MOTOR REMOVAL/INSTALLATION .)
Remove the A/C unit installation nut from the engine compartment, then remove the A/C unit. (See A/C UNIT INSTALLATION NOTE .)
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 3: Removing A/C Unit
Courtesy of MAZDA MOTORS CORP.
Remove the rear heat duct (1).
Disconnect the drain hose connected to the A/C unit.
Remove the nuts and bolts for installing the dashboard to the body.
Remove the dashboard with A/C unit. (See DASHBOARD REMOVAL/INSTALLATION .)
Disconnect the air mix wire from the air mix link and wire clamp.
Disconnect the airflow mode wire from the airflow mode sub link and wire clamp.
Disconnect the following connectors:
- Blower motor connector
- Evaporator temperature sensor connector
- Air intake actuator connector
- Resistor connector
Remove the heater case.
Type A
1. Remove the screws.
Type B
1. Remove the screws.
2. Pull up tab A in the direction shown by the arrow in the figure and remove it from the A/C unit.
3. Pull up tabs B in the direction shown by the arrow in the figure and remove it from the A/C unit.
Fig 5: Removing Heater Case - Type B
Courtesy of MAZDA MOTORS CORP.
Remove the nuts and bolts for installing the A/C unit to the dashboard.
Install in the reverse order of removal.
Perform the refrigerant system performance test. (See REFRIGERANT SYSTEM PERFORMANCE TEST .)