COOLANT CHANGE


caution Do not operate the water pump when the coolant is empty. If the water pump is operated, the water pump bearing may sustain damage, resulting in a water pump breakdown or service life reduction.

COOLANT DRAINING


1.Remove the luggage compartment floor carpet.

2.Remove the electric motor unit inspection lid.
3.
warning Be very careful because the coolant may be very hot.
Remove the radiator condenser tank cap.

4.Remove the plug found at the radiator upper section.
5.Remove the radiator drain plug, and drain the coolant.

6.Remove the motor (electric motor unit) drain plug, and drain the coolant.
7.Apply sealant to the threads of motor (electric motor unit) drain plug, and then tighten the drain plug to the specified torque.
Sealant: Semi-drying sealant: ThreeBond 1217G
Tightening torque: 15 ± 1 N·m
8.Tighten the radiator drain plug securely.
9.Tighten the radiator upper section plug to the specified torque.
Tightening torque: 2.0 ± 0.4 N·m

COOLANT REFILLING


1.
caution Use the Mitsubishi genuine Dia Queen Super Long Life Coolant Premium without adding water because the concentration is preadjusted to 50%.
Prepare the required volume of coolant using a jug so as to avoid running out of coolant during the refilling and causing any damage to the water pump.

    Recommended antifreeze: DIA QUEEN SUPER LONG LIFE COOLANT PREMIUM or equivalent*
    note *similar high quality ethylene glycol based non-silicate, non-amine, non-nitrate and non-borate coolant with long life hybrid organic acid technology.
    Quantity: 5.1 L
    (including 1.1 L in the radiator condenser tank)
2.Remove the radiator condenser tank cap if it is still mounted.
3.Fill the coolant to near the radiator condenser tank filler port.


4.According to either of the procedures below, start the "Coolant refilling control".
(1) Not using M.U.T.-III
.....1. Pull the parking brake lever.
.....2. Set the electric motor switch to the "ON" position.
.....3. Within seven seconds, press ASC OFF switch for the minimum of 10 times.
(2) When using M.U.T.-III
.....1. After setting the electric motor switch to the "LOCK" (OFF) position, connect the M.U.T.-III to the diagnosis connector.
.....2. Set the electric motor switch to the "ON" position.
.....3. From the system selection screen of M.U.T.-III, select "EV-ECU".
.....4. From the EV-ECU screen, select "Actuator test".
.....5. Select the item No. 3 "Water pump actuate".
5.There will be a wait time of 20 seconds after the start of "Coolant refilling control" until the actuation of water pump. During this period, hold the prepared jug, and insert the jug tip into the radiator condenser tank filler port to be ready to fill the coolant.
6.After the 20-second wait time, the water pump repeats the operation (4 seconds) and stop (30 seconds). So, refill the coolant with an amount decreased by the water pump operation.
note In a case if the prepared coolant becomes about to run out, turn the electric motor switch to the "LOCK" (OFF) position beforehand, and stop the "Coolant refilling control" (at this time, perform the work with two people).
note Including the wait time, "Coolant refilling control" will be completed within seven minutes from the start (during this period, 12 times of 4-second operation are included).
If the coolant change is not completed, or if the control is stopped during the work, the refilling can be resumed by starting "Coolant refilling control" once again.
7.Until the coolant level stops decreasing by the water pump operation, repeat the step 6 above.
note The coolant refilling will be complete in about 3 to 4 minutes.
8.For the air bleeding of cooling system, operate the water pump for the minimum of 1 minute according to either of the procedures below.
(1) Not using M.U.T.-III
.....1. Set the electric motor switch to the "START" position.
.....2. Have the Ready indicator illuminated, and maintain the READY status for the minimum of 15 minutes.
note In the READY status, the water pump operates intermittently when the coolant temperature is low.
By maintaining the READY status for 15 minutes or longer, the total duration of water pump operation will be 1 minute or longer.
(2) When using M.U.T.-III
.....1. After setting the electric motor switch to the "LOCK" (OFF) position, connect the M.U.T.-III to the diagnosis connector.
.....2. Set the electric motor switch to the "START" position.
.....3. Have the Ready indicator illuminated, and achieve the READY status.
.....4. From the system selection screen of M.U.T.-III, select "EV-ECU".
.....5. From the EV-ECU screen, select "Actuator test".
.....6. Select the item No. 9 "Water pump actuate 2".
9.Set the electric motor switch to the "LOCK" (OFF) position to stop the water pump.

10.When the coolant level in radiator condenser tank is at the "L" line or higher, the air bleeding is complete.
11.If the coolant level in radiator condenser tank is at the "L" or lower, fill the coolant to the "F" line, and then perform the air bleeding of above step 8 again.
12.Adjust the coolant level so that the coolant level in radiator condenser tank comes to near the "F" line when the water pump is stopped.

13.Securely install the radiator condenser tank cap to the lock position of radiator condenser tank (until it clicks in place).
14.Install the electric motor unit inspection lid.
15.Install the luggage compartment floor carpet.




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