COOLING SYSTEM GENERAL


  1. OUTLINE


    1. The cooling system uses a pressurized forced circulation system with a pressurized reservoir tank.

    2. A thermostat with a bypass valve is located on the water inlet housing to maintain suitable temperature distribution in the cooling system.

    3. An aluminum radiator core is used for weight reduction.

    4. A water-cooled type engine oil cooler is provided as standard equipment.

    5. A 3-stage temperature-controlled coupling fan, which uses the same bimetal that is used on the conventional model, controls the fan speed in three stages to improve cooling performance and reduce cooling fan noise.

    6. Toyota Genuine Super Long Life Coolant (SLLC) is used.

      A01DL1AE01
      Text in Illustration
      *1 Reservoir Tank *2 Thermostat
      *3 Radiator Assembly *4 Water Pump Assembly
      *a To Heater *b From Heater

  2. SPECIFICATION


    1. Engine Coolant


      1. Toyota Genuine SLLC is used. The maintenance interval is as shown in the table below:

        Engine Coolant Type Toyota Genuine Super Long Life Coolant (SLLC) or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite and 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.) Do not use plain water alone.
        Maintenance Intervals First Time 160000 km (100000 miles)
        Subsequent Every 80000 km (50000 miles)
        Color Pink

        Tech Tips


        • SLLC is pre-mixed (50% coolant and 50% deionized water). Therefore, no dilution is needed when SLLC in the vehicle is added or replaced.

        • If LLC (red-colored) is mixed with SLLC (pink-colored), the interval for LLC (every 40000 km/ 25000 miles or 24 months whichever comes first) should be used.

    2. Thermostat

      Thermostat Opening Temperature 80°C to 84°C (176°F to 183°F)