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Cleaning your car's cooling system yourself is simpler and cheaper than you might think. In this video, we'll change the water in the cooling system and clean the radiator. It's important to keep the radiator water clean by using demineralized water and radiator additive. Dirt in the cooling system is one of the main causes of engine overheating and rust. In this video, we'll change the radiator water in a Celta, but it's also valid for Corsa, Onix, Montana, Prisma, Agile, and other Chevrolet cars with VHC engines.