HVAC Basic System: Diagnosis Mazda CX-9 I рестайлинг

CABIN AIR FILTER INSPECTION

1. Verify that there is no damage, excessive dirt, or abnormal odor on the cabin air filter. If there is any malfunction, replace the cabin air filter. NOTE: The cabin air filter cannot be reused by cleaning it with water or compressed air.

FRONT EVAPORATOR INSPECTION

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

FRONT HEATER CORE INSPECTION

1. Inspect the front heater core for damage, cracks, and water leakage. If there is any malfunction, replace the front 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 front heater core.

REAR EVAPORATOR INSPECTION

1. Inspect for cracks, damage, and oil leakage. If any are found, replace the rear evaporator.
2. Inspect for bent fins. If any are bent, use a flathead screwdriver to straighten them.

REAR HEATER CORE INSPECTION

1. Inspect for cracks, damage, and coolant leakage. If any are found, replace the rear heater core.
2. Inspect for bent fins. If any are bent, use a flathead screwdriver to straighten them.
3. Verify that the rear heater core inlet and outlet are not distorted or damaged. If they are distorted or damaged, repair then using pliers.

Scheme 7

1. Disconnect the negative battery cable.
2. Discharge the refrigerant. (See REFRIGERANT CHARGING article.)
3. Remove the drive belt. (See «DRIVE BELT REMOVAL/INSTALLATION [MZI-3.7]»(ref-663015-S20413559332014101600000) article.)
4. Remove the front cooler hose (Hi). (See «REFRIGERANT LINE REMOVAL/INSTALLATION»(ref-663011-S25515470512014101600000) .)
5. Remove in the order indicated in the table. Do not allow compressor oil to spill. 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. Install in the reverse order of removal.
7. Perform the refrigerant system performance test. (See REFRIGERANT SYSTEM PERFORMANCE TEST article.)

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 8

Scheme 9

1. Remove the battery. (See «BATTERY REMOVAL/INSTALLATION [MZI-3.7]»(ref-663012-S16021955892014101600000) article.)
2. Drain the engine coolant. (See «ENGINE COOLANT REPLACEMENT [MZI-3.7]»(ref-663017-S17886152422014101600000) article.)
3. Remove the following parts: Windshield wiper arm and blade. (See WINDSHIELD WIPER ARM AND BLADE REMOVAL/INSTALLATION article.) Cowl grille (See COWL GRILLE REMOVAL/INSTALLATION article.) Windshield wiper motor (See WINDSHIELD WIPER MOTOR REMOVAL/INSTALLATION article.) Cowl panel (See «COWL PANEL REMOVAL/INSTALLATION»(ref-663033-S42069854372014101600000) article.)
4. Remove in the order indicated in the table.
5. Jack up the vehicle.
6. Under guard (LH) (See CHARCOAL CANISTER, CANISTER VENT (CV) SOLENOID VALVE, AIR FILTER COMPONENT REMOVAL/INSTALLATION [MZI-3.7] article.)
7. Install in the reverse order of removal.
8. Inspect for engine coolant leakage. (See «ENGINE COOLANT LEAKAGE INSPECTION [MZI-3.7]»(ref-663017-S28656668342014101600000) article.)

Scheme 10

1. Insert the heater pipe into the heater hose until the hose reaches the bracket or the protrusion on the pipe.
2. When the rear heater pipe is removed, bleed the air from the rear heater pipe thoroughly after refilling the engine coolant to prevent air from being trapped in the rear heater pipe.

Scheme 11

Scheme 12

Scheme 13

Scheme 14

1. Disconnect the negative battery cable.
2. Discharge the refrigerant. (See REFRIGERANT CHARGING article.)
3. Drain the engine coolant. (See «ENGINE COOLANT REPLACEMENT [MZI-3.7]»(ref-663017-S17886152422014101600000) article.)
4. Remove the following parts: Windshield wiper arm and blade (See WINDSHIELD WIPER ARM AND BLADE REMOVAL/INSTALLATION article.) Cowl grille (See COWL GRILLE REMOVAL/INSTALLATION article.) Windshield wiper motor (See WINDSHIELD WIPER MOTOR REMOVAL/INSTALLATION article.) Cowl panel (See «COWL PANEL REMOVAL/INSTALLATION»(ref-663033-S42069854372014101600000) article.) Air cleaner and fresh air duct component (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-3.7]»(ref-663036-S20639303202014101600000) article.) Cooling fan component (See «COOLING FAN COMPONENT REMOVAL/INSTALLATION [MZI-3.7]»(ref-663017-S08636677872014101600000) article.)
5. Disconnect the ATF oil cooler hose from the radiator.
6. Remove the radiator (See «RADIATOR REMOVAL/INSTALLATION [MZI-3.7]»(ref-663017-S10301572142014101600000) article.)
7. Remove the condenser. (See «CONDENSER REMOVAL/INSTALLATION»(ref-663011-S40421020682014101600000) .)
8. Remove the coolant reserve tank retaining bolts and move the coolant reserve tank.
9. Remove the power steering oil pump retaining bolt and nut and move the power steering oil pump. (See POWER STEERING OIL PUMP REMOVAL/INSTALLATION article.)
10. Do not allow remaining compressor oil in the piping and connecting parts to spill, and remove in the order indicated in the table. 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.
11. Remove the following parts, depending on rear cooler pipe to be removed. Decoration panel (See «DECORATION PANEL REMOVAL/INSTALLATION»(ref-663022-S35013114172014101600000) article.) Front console box mat (See «FRONT CONSOLE BOX MAT REMOVAL/INSTALLATION»(ref-663022-S21869071382014101600000) article.) Indicator panel (See «INDICATOR PANEL REMOVAL/INSTALLATION»(ref-663022-S05956493772014101600000) article.) Front console box (See «FRONT CONSOLE BOX REMOVAL/INSTALLATION»(ref-663022-S12692561512014101600000) article.) Dashboard under cover (See «DASHBOARD UNDER COVER REMOVAL/INSTALLATION»(ref-663022-S31534965712014101600000) article.) Side wall (See «SIDE WALL REMOVAL/INSTALLATION»(ref-663022-S26910641872014101600000) article.) Console panel (See «CONSOLE PANEL REMOVAL/INSTALLATION»(ref-663022-S28127850752014101600000) article.) Console cover (See «CONSOLE COVER REMOVAL/INSTALLATION»(ref-663022-S08411145752014101600000) article.) Console (See «CONSOLE REMOVAL/INSTALLATION»(ref-663022-S34706346452014101600000) article.) Front seat (passenger side) (See FRONT SEAT REMOVAL/INSTALLATION article.) Bolt Screws Rear cooler pipe No. 1 bracket.
12. Jack up the vehicle.
13. Remove the nuts and disconnect the presilencer and middle pipe.
14. Disconnect the rubber hanger.
15. Remove the bolts and presilencer insulator.
16. Remove the bolts.
17. Remove the nut and fastener.
18. Remove the under guard (RH).
19. Remove the transverse member retaining bolts and set the transverse member out of the way. (See «TRANSVERSE MEMBER REMOVAL/INSTALLATION»(ref-663038-S16074268062014101600000) article.)
20. Remove the bolt.
21. Remove the clip.
22. Disconnect rear cooler pipe No. 1 and remove rear cooler pipes No. 2 and No. 1.
23. Install in the reverse order of removal.
24. Inspect for engine coolant leakage. (See «ENGINE COOLANT LEAKAGE INSPECTION [MZI-3.7]»(ref-663017-S28656668342014101600000) article.)
25. Inspect the ATF level. (See AUTOMATIC TRANSAXLE FLUID (ATF) REPLACEMENT [AY6A-EL, AY6AX-EL] article.)
26. Perform the refrigerant system performance test. (See REFRIGERANT SYSTEM PERFORMANCE TEST article.)