1999 Lexus GS 300 Sport radiator?

How do you empty the radiator so I can re-fill it?

The water in it really stinks, and when I turn the heating on, the air stinks too. Any ideas? apart from taking it to a lexus dealer, duhh!
Answers:

Two different problems. Unless there is coolant leaking inside you cars heater system. Leaves debris in front of the windshield make there way into the air intake and mold smell. Carry dogs and cats fur gets into the air conditioning and starts smelling. Best to remove the blower motor and vacuum the evaporator coils and spray disinfectant cleaner to kill whats growing in your A/C system. Coolant really stinks the Toyota Red coolant Probably made from endangered species of dinosaurs is smelly but that is not the smell inside your car. "little trees" deoderizers hanging from the rear view mirror just cover up the funky A/C smell.
If you simply want to drain the radiator, look at the radiator from underneith the car where the bottom radiator hose is connected to the radiator, to the left or right of it you'll see a petcock, turn it with a pair of pliers and it will open and allow coolant to drain out. If you want to get rid of bad odor coming out of vents, remove the blower motor (under hood) and blow out old rotting debris (leaves etc.) which cause odors to come into car through the a/c and heater. Then spray the condenser and heater core (where you took blower motor out) with a disfecting /deodorizing spray and reinstall blower motor. good luck

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