Replacement [12/2017 - ]: Procedure

Refer to PROCEDURE - Step 2

Refer to PROCEDURE - Step 1

Refer to PROCEDURE - Step 3

1. Remove the 4 screws from the front fender liner RH.
2. Disconnect a hose from the No. 1 sub-radiator duct.
3. Loosen the radiator drain cock sub-assembly (for Intercooler) and drain the coolant (for Intercooler).

   HINT: 

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

4. Remove the reservoir tank cap (for Intercooler).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Reservoir Tank Cap (for Intercooler)
   *2	Radiator Drain Cock Sub-assembly (for Intercooler)

5. Tighten the radiator drain cock sub-assebly (for Intercooler) by hand.
6. Connect a hose to the No. 1 sub-radiator duct.
7. Install the 4 screws to the front fender liner RH.

1. When using the Techstream:
   1. Remove the reservoir tank cap (for Intercooler).
   2. Add engine coolant to the radiator reservoir assembly filler opening until it is filled to the B line at shown in the illustration.

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      B Line

      Standard capacity

      4.3 liters (4.5 US qts, 3.8 Imp. qts)

      NOTE:

      Never use water as a substitute for coolant.

      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. Install the reservoir tank cap (for Intercooler).
   4. Connect the Techstream to the DLC3.
   5. Turn the engine switch on (IG).
   6. Enter the following menus: Powertrain / Engine / Active Test / Control the Intercooler Water Pump

      Powertrain > Engine > Active Test 

      Tester Display
      Control the Intercooler Water Pump

   7. While adding coolant so that the coolant level is kept near the FULL line in the intercooler reservoir assembly, activate the electric water pump assembly for approximately 1 minute and then stop pump operation for 1 minute. At that time, check that air bubbles are discharged to the intercooler reservoir assembly.

      Standard

      Repeat this operation approximately 3 times until the sound of the electric water pump assembly gets smaller and no more bubbles are visible from the intercooler reservoir assembly or the coolant level in the intercooler reservoir assembly stabilizes. When this condition is reached, this indicates that air is completely bled from the coolant system.

      HINT: 

      If the intercooler reservoir assembly is filled excessively with coolant, coolant may spill out when the electric water pump assembly is stopped.

   8. When air is completely bleed, add coolant up to the FULL line in the intercooler reservoir assembly, and install the reservoir tank cap (for Intercooler).
2. When not using the Techstream:
   1. Remove the reservoir tank cap (for Intercooler).
   2. Add engine coolant to the radiator reservoir assembly filler opening until it is filled to the B line at shown in the illustration.

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      B Line

      Standard capacity

      4.3 liters (4.5 US qts, 3.8 Imp. qts)

      NOTE:

      Never use water as a substitute for coolant.

      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. Tighten the bleeder plug of the intercooler cooling radiator assembly.
   4. Install the reservoir tank cap (for Intercooler). [*1]
   5. Start the engine. [*2]
   6. In order to operate the electric water pump assembly, maintain the engine speed at 2000 rpm or higher with the shift lever in N or P for 1 minute and then stop operation for 1 minute. Repeat this operation approximately 2 times until the sound of the electric water pump assembly gets smaller and no more bubbles are visible from the intercooler reservoir assembly or the coolant level in the intercooler reservoir assembly stabilizes. [*3]
      WARNING:

      • Be careful as the radiator hoses are hot.
      • Keep your hands away from the cooling fan.
      NOTE:

      • Make sure that the coolant level in the intercooler reservoir assembly does not drop below the LOW line when the engine speed is 2000 rpm or higher.
      • Immediately after starting the engine, if the intercooler reservoir assembly runs out of coolant, perform the following: 1) stop the engine, 2) wait until the coolant has cooled down, and 3) pour in coolant until it reaches the B line.
   7. Stop the engine and wait until the coolant cools down to ambient temperature. [*4]
   8. Check that the coolant level is between the FULL and Low line.[*5]

      If the coolant level is lower than the LOW line, pour coolant of the specified concentration into the intercooler reservoir assembly until it reaches the B line, and repeat the procedure from steps [*1] to [*5].

      If the coolant level is above the FULL line, drain coolant so that the coolant level is between the FULL and LOW line.

Refer to PROCEDURE - Step 1

Refer to PROCEDURE - Step 8

Refer to PROCEDURE - Step 9

Refer to PROCEDURE - Step 10