Mazda CX-9 Grand Touring. Manual - part 451

Fig. 29: Identifying Heater Pipe & Hose 

REFRIGERANT LINE REMOVAL/INSTALLATION 

1. Disconnect the negative battery cable.  

2. Discharge the refrigerant. (See REFRIGERANT CHARGING .)  

3. Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT [MZI-3.7] .)  

4. Remove the following parts: 

1. Windshield wiper arm and blade (See WINDSHIELD WIPER ARM AND BLADE 

REMOVAL/INSTALLATION .)  

2. Cowl grille (See COWL GRILLE REMOVAL/INSTALLATION .)  

3. Windshield wiper motor (See WINDSHIELD WIPER MOTOR 

REMOVAL/INSTALLATION .)  

4. Cowl panel (See COWL PANEL REMOVAL/INSTALLATION .)  

5. Air cleaner and fresh air duct component (See INTAKE-AIR SYSTEM 

REMOVAL/INSTALLATION [MZI-3.7] .)  

6. Cooling fan component (See COOLING FAN COMPONENT REMOVAL/INSTALLATION 

[MZI-3.7] .)  

5. Disconnect the ATF oil cooler hose from the radiator.  

6. Remove the radiator (See RADIATOR REMOVAL/INSTALLATION [MZI-3.7] .)  

7. Remove the condenser. (See CONDENSER REMOVAL/INSTALLATION.)  

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 .)  

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, cool
ability will be lowered and abnormal noise or other malfunction c
occur. Always plug open fittings immediately after removing any 
refrigeration cycle parts. 

 

2008 Mazda CX-9 Grand Touring 

2008 HVAC Basic System - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:11:59 AM

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11. Remove the following parts, depending on rear cooler pipe to be removed. 

1. Decoration panel (See DECORATION PANEL REMOVAL/INSTALLATION .)  

2. Front console box mat (See FRONT CONSOLE BOX MAT REMOVAL/INSTALLATION .)  

3. Indicator panel (See INDICATOR PANEL REMOVAL/INSTALLATION .)  

4. Front console box (See FRONT CONSOLE BOX REMOVAL/INSTALLATION .)  

5. Dashboard under cover (See DASHBOARD UNDER COVER REMOVAL/INSTALLATION .) 

6. Side wall (See SIDE WALL REMOVAL/INSTALLATION .) 

Fig. 30: Identifying Refrigerant Line Removal/Installation Order & 
Specifications 

 

2008 Mazda CX-9 Grand Touring 

2008 HVAC Basic System - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:11:59 AM

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© 2005 Mitchell Repair Information Company, LLC. 

7. Console panel (See CONSOLE PANEL REMOVAL/INSTALLATION .)  

8. Console cover (See CONSOLE COVER REMOVAL/INSTALLATION .)  

9. Console (See CONSOLE REMOVAL/INSTALLATION .)  

10. Front seat (passenger side) (See FRONT SEAT REMOVAL/INSTALLATION .)  

11. Bolt  

12. Screws  

13. Rear cooler pipe No.1 bracket.  

12. Jack up the vehicle. 

Fig. 31: Identifying Rear Cooler Pipe & Torque Specifications 

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 .) 

 

2008 Mazda CX-9 Grand Touring 

2008 HVAC Basic System - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:11:59 AM

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© 2005 Mitchell Repair Information Company, LLC. 

Fig. 32: Identifying Presilencer, Middle Pipe & Torque Specifications 

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] .)  

25. Inspect the ATF level. (See AUTOMATIC TRANSAXLE FLUID (ATF) INSPECTION [AW6A-EL, 

AW6AX-EL] .)  

26. Perform the refrigerant system performance test. (See REFRIGERANT SYSTEM PERFORMANCE 

TEST .) 

Fig. 33: Identifying Rear Cooler Pipes No.2, No.1 & Torque Specifications 

REFRIGERANT LINE REMOVAL NOTE 

 

2008 Mazda CX-9 Grand Touring 

2008 HVAC Basic System - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:11:59 AM

Page 27 

© 2005 Mitchell Repair Information Company, LLC.