Front A/C Unit Removal/Installation

Disconnect the negative battery cable.
Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT .)
Evacuate the refrigerant from the system. (See REFRIGERANT RECOVERY .) (See REFRIGERANT CHARGING .)
CAUTION:
- If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and abnormal noise will occur. Always immediately plug open fittings after removing any refrigeration cycle parts to keep moisture or foreign material out of the cycle.
Remove the dashboard. (See DASHBOARD REMOVAL/INSTALLATION .)
Remove in the order indicated in the figure below.
ENGINE COMPARTMENT

Fig 1: Removing Heater Hoses
Courtesy of MAZDA MOTORS CORP.

PASSENGER COMPARTMENT (IN DASHBOARD)

Fig 2: Evaporator Housing
Courtesy of MAZDA MOTORS CORP.

Fig 3: Passenger Compartment Component Table
Courtesy of MAZDA MOTORS CORP.
Install in the reverse order of removal.

Fig 4: Exploded View Of Evaporator Housing
Courtesy of MAZDA MOTORS CORP.