RX 350 FWD V6-3.5L (2GR-FE) (2010)
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If no corrosion is found - Refer to the Technical Information System (TIS) applicable model and model year Repair Manual: Vehicle Interior-
Heating/Air Conditioning - 'Air Conditioning System: Air Conditioning System: Problem Symptoms Table".
3. Drain all coolant from the radiator and reserve tank and close the radiator drain. Thoroughly rinse the reserve tank and pick-up tube with water and
reinstall.
4. Remove the thermostat from its housing and reassemble the housing.
IMPORTANT
This will allow the cleaning solution to circulate without first requiring the engine to reach operating temperature.
Refer to the Technical Information System (TIS) applicable model and model year Repair Manual:
Engine/Hybrid System - Cooling - "2GR-FE Cooling: Thermostat: Removal"
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2008 / 2009 / 2010 (to 08/2009) / 2010 (from 08/2009) RX 350
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2008 RX 400h
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2010 (to 08/2009) / 2010 (from 08/2009) RX 450h
5. Install a cooling system flush adapter between the heater core inlet and outlet hoses bypassing the heater core.