Section 10 (Cooling): Coolant: Replacement

1. Loosen the radiator drain cock plug

   HINT.

   Collect the coolant in a container and dispose of it according to the regulations in your area.

2. Remove the radiator reservoir cap, and using a 6 mm hexagon wrench, remove the vent plug.
Fig 1: Identifying Vent Plug
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Drain the coolant.
4. Loosen the 2 cylinder block drain cock plugs
   Fig 2: Identifying Cylinder Block Drain Cock Plugs

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Total capacity: 11.1 liters (11.7 US qts, 9.8 lmp. qts) 

1. Tighten the radiator drain cock plug and 2 cylinder block drain cock plugs.

   Torque: Cylinder block drain cock plug 

   13 N*m (133 kgf*cm, 10 ft.*lbf) 

2. Add TOYOTA Super Long Life Coolant (SLLC) into the radiator reservoir

   Capacity: 5.0 liters (5.3 US qts, 4.4 lmp. qts) 

   HINT:

   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 consists of a combination of low phosphates and organic acids).

3. Further add coolant into the reservoir until it reaches the FULL line.
4. Press the No. 1 and No. 2 radiator hoses several times by hand, and then check the coolant level. If the coolant level is low, add coolant.
   Fig 3: Identifying Coolant Level

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Using a 6 mm hexagon wrench, install the vent plug

   Torque: 1.5 N*m (15 kgf*cm, 13 in.*lbf) 

   Fig 4: Identifying Vent Plug

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Bleed air from the cooling system.
   NOTE: Before starting the engine to warm up the engine, turn the A/C switch OFF.
   1. Put the engine in inspection mode (see INSPECTION MODE PROCEDURE ).
   2. While idling the engine for approximately 10 minutes, make sure the coolant remains at the FULL line by adding coolant as necessary.
   Fig 5: Identifying Coolant Level While Adding Coolant
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   3. After idling the engine for 10 minutes, add coolant until it reaches the B line at the base of the reservoir's filler neck

      Capacity: 2.5 to 3.5 liters (2.6 to 3.7 US qts, 2.2 to 3.1 lmp. qts) 

      HINT.

      The B line is the lower edge of the inner wall of the filler neck.

   4. Close the radiator reservoir cap, and run the engine at 1500 to 2000 rpm for 5 minutes.

      HINT.

      The thermostat open timing can be confirmed by pressing the No. 1 radiator hose by hand, and checking when the SLLC starts to flow inside the hose.

      CAUTION: When pressing the radiator hose:

      • Wear protective gloves.
      • Be careful as the radiator hose is hot.
      • Keep your hands away from the radiator fan.
7. Stop the engine and wait until the coolant cools down to ambient temperature.
   CAUTION: Do not remove the radiator reservoir cap while the engine and radiator are still hot.
   Pressurized, hot coolant and steam may be released and cause serious burns.
8. Check the coolant level

   If the coolant level is below the FULL line, add coolant until it reaches the FULL line

   Fig 6: Identifying Coolant Level

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002