Versa L4-1.8L (MR18DE) (2009)
12. Fill the cooling system reservoir tank to the specified level and install the radiator cap. Run the engine to warm up the cooling system and top up
the system as necessary.
FLUSHING COOLING SYSTEM
1. Install reservoir tank if removed. Refer to See: Engine, Cooling and Exhaust/Cooling System/Radiator/Service and Repair.
2. Install radiator drain plug.
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If water drain plug on cylinder block is removed, close and tighten it. Refer to See: Engine, Cooling and Exhaust/Engine/Cylinder Block
Assembly/Service and Repair/Disassembly And Assembly.
CAUTION:
Be sure to clean radiator drain plug and install with new O-ring. Refer to See: Engine, Cooling and Exhaust/Cooling
System/Radiator/Service and Repair.
3. Fill radiator and reservoir tank with water and reinstall radiator cap.
4. Run engine and warm it up to normal operating temperature.
5. Rev engine two or three times under no-load.
6. Stop engine and wait until it cools down.
7. Drain water from the cooling system.
8. Repeat steps 1 through 7 until clear water begins to drain from radiator.