PROCEDURE
REMOVE NO. 1 ENGINE UNDER COVER
DRAIN ENGINE COOLANT
Loosen the radiator drain cock plug.
Tech Tips
Collect the coolant in a container and dispose of it according to the regulations in your area.
Remove the radiator reservoir cap.
CAUTION:
Do not remove the radiator reservoir cap while the engine and radiator assembly are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.
| *1 | Radiator Reservoir Cap | *2 | Radiator Reservoir Assembly |
| *3 | Radiator Drain Cock Plug | - | - |
ADD ENGINE COOLANT
Tighten the radiator drain cock plug by hand.
Add TOYOTA Super Long Life Coolant (SLLC) to the radiator reservoir assembly filler opening.
|
B Line |
Continue adding TOYOTA SLLC until it is filled to the B line.
| Standard Capacity | ||||||
|---|---|---|---|---|---|---|
|
Note
Never use water as a substitute for engine coolant.
Tech Tips
The B line is the lower edge of the inner wall of the filler neck.
TOYOTA vehicles are filled with TOYOTA SLLC at the factory. In order to avoid damage to the engine cooling system and other technical problems, only use TOYOTA SLLC or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, non-borate coolant with long-life hybrid organic acid technology (coolant with long-life hybrid organic acid technology is a combination of low phosphates and organic acids).
Press the inlet and outlet radiator hoses several times by hand, and then check the level of the coolant.
If the coolant level drops below the B line, add TOYOTA SLLC to the B line.
Install the radiator reservoir cap.
Start the engine, and warm it up until the cooling fan operates.
Set the air conditioning as follows while warming up the engine.
| Item | Condition |
|---|---|
| Manual Air Conditioning System | Fan speed - Any setting except "OFF" |
| Temperature - Toward WARM Air conditioning switch "OFF" |
|
| Automatic Air Conditioning System | Temperature - Toward MAX Air conditioning switch "OFF" |
Maintain the engine speed at 2000 to 2500 rpm and warm up the engine until the cooling fan operates.
Note
Make sure that the radiator reservoir assembly still has some coolant in it.
Pay attention to the needle of the water temperature meter. Make sure that the needle does not show an abnormally high temperature.
If there is not enough coolant, the engine may burn out or overheat.
Immediately after starting the engine, if the radiator reservoir assembly does not have any coolant, perform the following: 1) stop the engine, 2) wait until the coolant has cooled down, and 3) add coolant until the coolant is filled to the B line.
Until the coolant level has stabilized, run the engine at 2000 rpm.
Press the radiator hose sub-assembly and No. 2 radiator hose several times by hand to bleed air.
CAUTION:
When pressing the radiator hoses:
Wear protective gloves.
Be careful as the radiator hoses are hot.
Keep your hands away from the radiator fan.
Stop the engine and wait until the coolant cools down to ambient temperature.
Check that the coolant level is between the FULL and LOW line.
If the coolant level is below the LOW line, repeat all of the procedures above.
If the coolant level is above the FULL line, drain coolant so that the coolant level is between the FULL and LOW line.
INSPECT FOR COOLANT LEAK
INSTALL NO. 1 ENGINE UNDER COVER