How do you drain and flush the coolant in a Lexus is350?

Answer 1

To drain and flush the coolant in a Lexus IS350, first ensure the engine is cool and remove the radiator cap. Locate the drain plug at the bottom of the radiator to drain the old coolant, and let it flow into a container. After draining, close the drain plug, then fill the radiator with a mixture of water and coolant flush, run the engine with the heater on to circulate the flush, and finally drain again to remove any residue. Finally, refill the system with the appropriate coolant, ensuring to bleed any air from the system.