Expansion Valve Removal/Installation

Installation position 

Courtesy of MAZDA MOTORS CORP.

1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
2. Discharge the refrigerant from the system. (See REFRIGERANT RECOVERY .) (See REFRIGERANT CHARGING .)
3. Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION .)
4. Remove the cooler hose (LO) bracket installation nut. (See REFRIGERANT LINE REMOVAL/INSTALLATION .)
5. Remove the bolt, then disconnect the cooler hose (LO) and cooler pipe. Do not allow compressor oil to spill. (See REFRIGERANT LINE REMOVAL/INSTALLATION .)
   Fig 1: Cooler Pipe, Cooler Hose And Bolt With Torque Specification

   Courtesy of MAZDA MOTORS CORP.
   CAUTION:

   • If moisture or foreign matter enters the refrigeration cycle, cooling ability will be lowered and abnormal noise will occur. Always immediately plug all open fittings after removing any refrigeration cycle parts to keep moisture or foreign matter out of the cycle.
6. Remove the bolts.
   Fig 2: Expansion Valve And Bolts With Torque Specification

   Courtesy of MAZDA MOTORS CORP.
7. Remove the expansion valve. Do not allow compressor oil to spill.
   CAUTION:

   • If moisture or foreign matter enters the refrigeration cycle, cooling ability will be lowered and abnormal noise will occur. Always immediately plug all open fittings after removing any refrigeration cycle parts to keep moisture or foreign matter out of the cycle.
8. Install in the reverse order of removal.
9. Perform the refrigerant system performance test. (See REFRIGERANT SYSTEM PERFORMANCE TEST .)