Cooling System (Mechanical): Cooling: Coolant: Replacement

REMOVE V-BANK COVER SUB-ASSEMBLY (See REMOVAL )
REMOVE AIR CLEANER INLET COVER (See REMOVAL )
REMOVE NO. 1 AIR CLEANER INLET (See REMOVAL )

Fig 1: Locating Engine Under Cover Screws And Clips

REMOVE NO. 1 ENGINE UNDER COVER
1. Remove the 13 screws, 7 clips and cover.
DRAIN ENGINE COOLANT
CAUTION: Do not remove the radiator reservoir cap and vent plug while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.
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.
3. Drain coolant.
  
  Fig 2: Identifying Vent Plug
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Loosen the 2 cylinder block drain cock plugs.
  
  Fig 3: Identifying Cylinder Block Drain Cock Plugs
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
ADD ENGINE COOLANT
NOTE: Before adding coolant, turn the A/C switch OFF. Total capacity: 11.0 liters (11.7 US qts, 9.7 Imp. qts)
1. Tighten the radiator drain cock plug and 2 cylinder block drain cock plugs.
  Torque: 13 N*m (133 kgf*cm, 10 ft.*lbf) for cylinder block drain cock plug
2. Add TOYOTA Super Long Life Coolant (SLLC) into the radiator reservoir.
  Capacity: Approximately 5.0 liters (5.3 US qts, 4.4 Imp. 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).
  - Please contact your TOYOTA dealer for further details.
  - The thermostat open timing can be confirmed by pressing the inlet radiator hose by hand, and checking when the coolant starts to flow inside the hose.
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 4: Checking 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)
6. Bleed air from the cooling system.
  NOTE: Before starting the engine to warm up the engine, turn the A/C switch OFF.
  1. 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 Vent Plug
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. 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: Approximately 2.5 to 3.5 liters (2.6 to 3.7 US qts, 2.2 to 3.1 Imp. qts)
    
    HINT:
    
    The B line is the lower edge of the inner wall of the filler neck.
    
    Fig 6: Checking Coolant Level
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. 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.
INSPECT FOR COOLANT LEAK (See ON-VEHICLE INSPECTION )
INSTALL NO. 1 AIR CLEANER INLET (See INSTALLATION )
INSTALL AIR CLEANER INLET COVER (See INSTALLATION )
INSTALL V-BANK COVER SUB-ASSEMBLY (See INSTALLATION )
INSTALL NO. 1 ENGINE UNDER COVER
1. Install the cover with the 7 clips and 13 screws.
  
  Fig 8: Locating Engine Under Cover Clips And Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002