A9. CHANGE ENGINE COOLANT


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1. Stop the engine after it is fully warmed up.
2. Add detergent to the engine coolant in order to flush the cooling system, and start the engine.

3. Loosen the drain plug, remove the radiator can and drain the coolant.
4. Feed fresh water into the cooling system through the filler port of the radiator in order to wash the cooling system, and then tighten the drain plug.
5. Drain the coolant from the radiator condenser tank.
6. Install the radiator condenser tank.

7.
cautionDo not use alcohol or methanol anti-freeze or any engine coolants mixed with alcohol or methanol anti-freeze. The use of an improper anti-freeze can cause the corrosion of the aluminium components.
Depending upon conditions of operation, determine the amount of long life coolant, antifreeze or antirust to be added to the coolant.
Recommended antifreeze: MITSUBISHI MOTORS Genuine Coolant or equivalent
8. Fill the cooling system with soft water through the filler port, and add long life coolant, if necessary.
9. Fill the radiator condenser tank with coolant.
10. Install the radiator cap and the radiator condenser tank cap.
11.
cautionWhen removing the radiator cap, be careful to blow out steam and boiling water.
Recheck the engine coolant level after a road test.

REMOVAL OF ENGINE COOLANT FROM THE CYLINDER BLOCK DRAIN PLUG


1. Drain the water from the radiator, heater core and engine after unplugging the radiator drain plug and removing the radiator cap.


2. Drain the water in the water jacket by unplugging the drain plug of the cylinder block <6G7>.

3. Remove the water drain plug of engine oil cooler to drain the coolant inside the water jacket. Replace the gasket and tighten the water drain plug to the specified torque <4M4>.
Tightening torque: 31 ± 2 N·m
4. Remove the radiator condenser tank and drain the coolant.
5. Drain the coolant then clean the path of the coolant by injecting water into the radiator from the radiator cap area.

6. Apply the designated sealant to the screw area of the cylinder block drain plug, and then tighten to the standard torque <6G7>.

    Specified sealant: 3M Nut Locking Part No.4171 or equivalent
    Tightening torque: 39 ± 5 N·m
7. Securely tighten the drain plug of the radiator.
8. Reinstall the radiator condenser tank.

9.
cautionDo not use alcohol or methanol anti-freeze or any engine coolants mixed with alcohol or methanol anti-freeze. The use of an improper anti-freeze can cause corrosion of the aluminium components.
By referring to the section on coolant, select an appropriate concentration for safe operating temperature within the range of 30 to 60%. Use special tool LLC changer (MB991871) to refill the coolant. A convenient mixture is a 50% water and 50% antifreeze solution (freezing point: -31°C).

    Recommended antifreeze: MITSUBISHI MOTORS Genuine Coolant or equivalent
    Quantity (including 0.65 L in the radiator condenser tank):

      <Short wheelbase> 9.0 L
      <Long wheelbase (vehicles without rear heater)> 9.0 L
      <Long wheelbase (vehicles with rear heater)> 10.5 L
noteFor how to use special tool (MB991871), refer to its manufacturer’s instructions.
10. Reinstall the radiator cap.
11. Start the engine and let it warm up until the thermostat opens.
12. After repeatedly revving the engine up to 3,000 r/min several times, then stop the engine.
13. Remove the radiator cap after the engine has become cold, and pour in coolant up to the brim. Reinstall the cap.
14.
cautionDo not overfill the radiator condenser tank.
Add coolant to the radiator condenser tank between the "FULL" and "LOW" mark if necessary.