Mazda CX-9 Grand Touring. Manual - part 145

Fig. 10: Holding Cooling System Cap 
Courtesy of MAZDA MOTORS CORP. 

COOLANT RESERVE TANK REMOVAL/INSTALLATION [MZI-3.7] 

1. Drain the engine coolant until the coolant reserve tank becomes empty. (See ENGINE COOLANT 

REPLACEMENT [MZI-3.7].)  

2. Remove in the order indicated in the table.  

3. Install in the reverse order of removal.  

4. Refill the engine coolant. (See ENGINE COOLANT REPLACEMENT [MZI-3.7].)  

5. Inspect for engine coolant leakage. (See ENGINE COOLANT LEAKAGE INSPECTION [MZI-3.7].) 

WARNING:



Never remove the cooling system cap or loosen the radiator drain 
plug while the engine is running, or when the engine and radiator are 
hot. Scalding engine coolant and steam may shoot out and cause 
serious injury. It may also damage the engine and cooling system.  



Turn off the engine and wait until it is cool. Even then, be very 
careful when removing the cap. Wrap a thick cloth around it and 
slowly turn it counterclockwise to the first stop. Step back while the 
pressure escapes.  



When you are sure all the pressure is gone, press down on the cap 
using the cloth, turn it, and remove it.  

 

2008 Mazda CX-9 Grand Touring 

2008 ENGINE Cooling System (MZI-3.7) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 9:57:25 AM

Page 11 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 11: Identifying Coolant Reserve Tank, Hose & Torque Specifications 
Courtesy of MAZDA MOTORS CORP. 

RADIATOR REMOVAL/INSTALLATION [MZI-3.7] 

1. Disconnect the negative battery cable.  

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

3. Remove the air cleaner and fresh air duct component. (See INTAKE-AIR SYSTEM 

REMOVAL/INSTALLATION [MZI-3.7] .)  

4. Remove the cooling fan component. (See COOLING FAN COMPONENT 

REMOVAL/INSTALLATION [MZI-3.7].)  

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

6. Remove in the order indicated in the table.  

7. Install in the reverse order of the removal: 

WARNING:



Never remove the cooling system cap or loosen the radiator drain 
plug while the engine is running, or when the engine and radiator are 
hot. Scalding engine coolant and steam may shoot out and cause 
serious injury. It may also damage the engine and cooling system.  



Turn off the engine and wait until it is cool. Even then, be very 
careful when removing the cap. Wrap a thick cloth around it and 
slowly turn it counterclockwise to the first stop. Step back while the 
pressure escapes.  



When you are sure all the pressure is gone, press down on the cap 
using the cloth, turn it, and remove it.  

 

2008 Mazda CX-9 Grand Touring 

2008 ENGINE Cooling System (MZI-3.7) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 9:57:25 AM

Page 12 

© 2005 Mitchell Repair Information Company, LLC. 

8. Refill the engine coolant. (See ENGINE COOLANT REPLACEMENT [MZI-3.7].)  

9. Inspect for engine coolant leakage. (See ENGINE COOLANT LEAKAGE INSPECTION [MZI-3.7].) 

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

AW6AX-EL] .) 

Fig. 12: Identifying Coolant Reserve Tank Hose, Lower Radiator Hose, Oil Collar Water Hose And 
Upper Mount Rubber Bracket 
Courtesy of MAZDA MOTORS CORP. 

UPPER MOUNT RUBBER BRACKET REMOVAL NOTE 

CAUTION:



Do not apply force excessively and in the directions that are not 
specified, otherwise the upper mount rubber bracket could be 
damaged.  

 

2008 Mazda CX-9 Grand Touring 

2008 ENGINE Cooling System (MZI-3.7) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 9:57:25 AM

Page 13 

© 2005 Mitchell Repair Information Company, LLC. 

1. Insert a flathead screwdriver into the upper mount rubber bracket notch. 

Fig. 13: Removing Upper Mount Rubber Bracket Notch 
Courtesy of MAZDA MOTORS CORP. 

2. Apply force in the direction shown by the arrow. 

Fig. 14: Applying Force In Upper Mount Rubber Bracket Notch 
Courtesy of MAZDA MOTORS CORP. 

RADIATOR REMOVAL NOTE 

1. Remove the radiator from above the engine compartment.  

THERMOSTAT REMOVAL/INSTALLATION [MZI-3.7] 

WARNING:



Never remove the cooling system cap or loosen the radiator drain 
plug while the engine is running, or when the engine and radiator are 
hot. Scalding engine coolant and steam may shoot out and cause 
serious injury. It may also damage the engine and cooling system.  



Turn off the engine and wait until it is cool. Even then, be very 
careful when removing the cap. Wrap a thick cloth around it and 
slowly turn it counterclockwise to the first stop. Step back while the 
pressure escapes.  

 

2008 Mazda CX-9 Grand Touring 

2008 ENGINE Cooling System (MZI-3.7) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 9:57:25 AM

Page 14 

© 2005 Mitchell Repair Information Company, LLC.