Basic System (HVAC): Diagnosis Mazda MX-5 NC рестайлинг

EVAPORATOR INSPECTION

1. Inspect the evaporator for damage, cracks and oil leakage. If there is any malfunction, replace the evaporator.
2. Visually inspect the fins for bending. If there is any bending, use the end of a flathead screwdriver to straighten the fins.

HEATER CORE INSPECTION

1. Inspect the heater core for damage, cracks and water leakage. If there is any malfunction, replace the heater core.
2. Visually inspect the fins for bending. If there is any bending, use the end of a flathead screwdriver to straighten the fins.
3. Visually inspect the heater hose for deformation. Repair with pliers if there is deformation. If there is any malfunction, replace the heater core.

Scheme 54

1. Remove the battery cover.
2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [LF]»(ref-430294-S35932810402011101700000) .)
3. Remove the airflow mode actuator. (See «AIRFLOW MODE ACTUATOR REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER]»(ref-430350-S30488669802011101700000) . See «AIRFLOW MODE ACTUATOR REMOVAL/INSTALLATION [MANUAL AIR CONDITIONER]»(ref-430349-S34691787852011101700000) .)
4. Remove the airflow mode main link as shown in the illustration.
5. Install in the reverse order of removal.

Scheme 55

1. Remove the battery cover.
2. Disconnect the negative battery cable. See «BATTERY REMOVAL/INSTALLATION [LF]»(ref-430294-S35932810402011101700000) .
3. Discharge the refrigerant from the system. (See «REFRIGERANT CHARGING»(ref-430347-S23646399522011101700000) .)
4. Remove the air cleaner. See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [LF]»(ref-478572-S27568218632012061100000)
5. Remove the PCM. See «PCM REMOVAL/INSTALLATION [LF]»(ref-478574-S20052552792012061100000)
6. Remove the drive belt. (See «DRIVE BELT REPLACEMENT [LF]»(ref-430300-S34762963992011101700000) .)
7. Do not allow remaining compressor oil in the A/C compressor and pipes to spill, and remove in the order indicated in the chart. 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.
8. Install in the reverse order of removal.
9. Perform the refrigerant system performance test. (See «REFRIGERANT SYSTEM PERFORMANCE TEST»(ref-430347-S25341795652011101700000) .)

CONDENSER INSPECTION

1. Inspect the condenser for cracks, damage, and oil leakage. If there is any malfunction, replace the condenser.
2. Visually inspect the fins for clogging of foreign material. If any fins are clogged, remove the foreign material.
3. Visually inspect the fins for bending. If there is any bending, use the end of a flathead screwdriver to straighten fins.

Scheme 56

1. Remove the battery cover.
2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [LF]»(ref-430294-S35932810402011101700000) .)
3. Discharge the refrigerant from the system. (See «REFRIGERANT CHARGING»(ref-430347-S23646399522011101700000) .)
4. Remove the air cleaner. See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [LF]»(ref-478572-S27568218632012061100000)
5. Remove the splash shield.
6. Remove the under cover.
7. Do not allow remaining compressor oil in the piping and connecting parts to spill, and remove in the order indicated in the chart. 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.
8. Install in the reverse order of removal.
9. Perform the refrigerant system performance test. (See «REFRIGERANT SYSTEM PERFORMANCE TEST»(ref-430347-S25341795652011101700000) .)

Scheme 57

1. Disconnect the block joint type pipes by grasping the female side of the block with pliers or similar tool and holding firmly, and then remove the connection bolt or nut.

Scheme 58

1. Temporarily tighten the joint bolt by hand.
2. Connect the block joint type pipes by grasping the female side of the block with pliers or similar tool and holding firmly, and then tighten the connection bolt or nut with a torque wrench.