Engine Cooling System: Maintenance Nissan 350Z I

FLUSHING COOLING SYSTEM

1. Fill radiator with water until water spills from the air relief hole, then close air relief plug. Fill radiator and reservoir tank with water and reinstall radiator cap.
2. Run engine and warm it up to normal operating temperature.
3. Rev engine two or three times under no-load.
4. Stop engine and wait until it cools down.
5. Drain the water from the system. Refer to " «DRAINING ENGINE COOLANT»(ref-212004-S25580840632005122300000) ".
6. Repeat steps 1 through 5 until clear water begins to drain from the radiator.

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1. Remove undercover using power tool.
2. Drain engine coolant from the radiator. Refer to " «DRAINING ENGINE COOLANT»(ref-212004-S25580840632005122300000) "Changing Engine Coolant". CAUTION: Perform when the engine is cold.
3. Remove air duct and air cleaner case assembly. Refer to " «REMOVAL AND INSTALLATION»(ref-170482-S41791701252005011000000) ".
4. Remove reservoir tank and bracket.
5. Disconnect A/T oil cooler hoses. Install blind plug to avoid leakage of A/T fluid.
6. Disconnect radiator upper and lower hoses.
7. Remove radiator cooling fan assembly.
8. Rotate two radiator upper mount brackets 90 degrees in the direction shown in the figure, and remove them.
9. Remove bracket mounting bolt for anchoring A/C piping from vehicle left side, so that A/C piping can be moved.
10. Remove cover, and then two A/C condenser mounting bolts located in upper part of radiator.
11. Lift the A/C condenser up approximately 2 cm (0.79 in). Remove the radiator mounting brackets. CAUTION: To avoid putting a load on the A/C piping, be careful not to lift too much.
12. Lift up and remove the radiator. CAUTION: Do not damage or scratch A/C condenser and radiator core when removing. After removing the radiator, fix the A/C condenser on the vehicle side with a rope or similar means. This is to prevent a load being applied to the A/C piping.

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