Coolant: Service and Repair

ENGINE COOLANT (2AZ-FE)
REPLACEMENT
1. DRAIN ENGINE COOLANT

CAUTION: To avoid the danger of being burned, do not remove the radiator cap while the engine and radiator are still hot. Thermal expansion will cause hot engine coolant and steam to blow out from the radiator.

a. Loosen the radiator drain cock plug (lower side) and water drain cock plug, then drain the coolant.
b. Remove the radiator cap.
c. Close the radiator drain cock plug (lower side).





d. Tighten the water drain cock plug.
Torque: 12.7 Nm (129 kgf-cm, 9 ft. lbs.)





2. ADD ENGINE COOLANT
a. Loosen the radiator drain cock plug (upper side) by 3 turns.
b. Connect a vinyl tube to the air bleed port.
c. Fill the radiator with coolant from the fill port. Add coolant until it overflows from the air bleed port and it remains inside the vinyl tube, then tighten the radiator drain cock plug (upper side).
Capacity:
MANUAL TRANSAXLE: 6.8 liters (7.2 US qts., 6.0 Imp. qts.)
AUTOMATIC TRANSAXLE: 6.7 liters (7.1 US qts., 5.9 Imp. qts.)
Engine Coolant: Toyota Super Long Life Coolant or similar high quality ethylene glycol based nonsilicate, nonamine, nonnitrite, and nonborate coolant with long life hybrid organic acid technology (coolant with long life hybrid organic acid technology consists of a combination of low phosphates and organic acids).

NOTICE: Do not substitute water for engine coolant.

HINT:
- Use of improper coolants may damage the engine cooling system.
- Use only Toyota Super Long Life Coolant or similar high quality ethylene glycol based nonsilicate, nonamine, nonnitrite, and nonborate coolant with long life hybrid organic acid technology (coolant with long life hybrid organic acid technology consists of a combination of low phosphates and organic acids).
- Toyota Super Long Life Coolant is premixed with 50% coolant and 50% deionized water. This coolant provides protection down to about 35°C (31°F).

d. Check the coolant level inside the radiator by pressing the inlet and outlet radiator hoses several times by hand. If the coolant level goes down, add coolant.
e. Install the radiator cap securely.
f. Slowly pour coolant into the radiator reservoir until it reaches the FULL line.





g. Warm up the engine until the cooling fan operates.
1. Set the air conditioning as follows while warming up the engine.
2. Maintain the engine speed at 2,000 to 2,500 rpm and warm up the engine until the cooling fan operate.
h. Press the inlet and outlet radiator hoses several times by hand while warming up the engine.
i. Stop the engine and wait until the coolant cools down.
j. Remove the radiator cap and check the coolant level inside the radiator.
k. If the coolant level is below the full level, perform the steps from (a) through (b) and repeat the operation until the coolant level stays the full level.
l. Recheck the coolant level inside the radiator reservoir tank. If it is below the full level, add the coolant.
3. CHECK FOR ENGINE COOLANT LEAKAGE
a. Fill the radiator with engine coolant and attach a radiator cap tester.
b. Pump it to 118 kPa (1.2 kgf/cm2, 17.1 psi) and check for leakage.