Cooling System Bleeding: MR2
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Toyota Tacoma, 2002 Toyota RAV4, 2002 Toyota Prius, 2002 Toyota MR2, and 2002 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
- Remove tool box and luggage compartment trim cover. See Fig 1. Connect air bleed hoses to heater coolant valve air drain plug and radiator air drain plug. See Fig 2. Suspend opposite end of air bleed hoses from the hood. Ensure air bleed hoses are not pinched or restricted. Rotate heater coolant valve air drain plug and radiator air drain plug counterclockwise to open position.
- Slowly add a 50/50 mixture of distilled water and coolant to coolant reservoir so that coolant lever in coolant reservoir remains at least 1/2 full all the time while adding coolant to coolant reservoir. Coolant reservoir is located at driver's side rear corner of engine compartment. See Fig 2. DO NOT use plain water or alcohol based coolant. Approximate capacity is 11.0 qts. (10.4L). Air should bleed from air bleed hoses on heater coolant valve air drain plug and radiator air drain plug. Ensure coolant level in both air bleed hoses and coolant reservoir are at the same level. See Fig 2.
- If coolant level in air bleed hoses is lower than level at coolant reservoir, air still exists in cooling system. Check for pinched or restricted air bleed hoses and repeat step 2. When proper coolant level is obtained in air bleed hoses, close heater coolant valve air drain plug and radiator air drain plug. Install cap on coolant reservoir until "click" sound is heard and cap is in the lock position. Remove air bleed hoses.
- Start engine and ensure air is bleeding into coolant reservoir. Warm engine to normal operating temperature. Check that coolant level in coolant reservoir is above the FULL mark. Shut engine off and allow engine to completely cool. Ensure coolant level in coolant reservoir is between LOW and FULL marks. Add coolant if necessary. Reinstall luggage compartment trim cover and tool box.
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