How often should the coolant be replaced in a Cadillac XTS?
1 Answers
Cadillac XTS coolant generally needs to be replaced every two years or approximately 40,000 kilometers. Before completely replacing the coolant, a thorough inspection should be conducted to check for any signs of leakage or cracks in the pipes, with a particular focus on the five-way water pipe. The five-way pipe is named for its five connecting interfaces that link various parts. Coolant flows through the five-way pipe and is then distributed to different parts of the car to function. If there is any leakage of coolant in this section, the water pipe should be replaced or the interface should be re-secured as needed. Drain the old coolant and then flush the liquid channels with clean water. Add clean water to the coolant reservoir and continue filling until water flows continuously through the engine cooling system. Then, start the engine and let it idle for 3 to 5 minutes to circulate the water. The water initially flowing out of the reservoir may have a faint pink tint. Continue adding clean water until the water coming out is clear. Note: Do not forget to remove the heater hose and drain the water from the heater core. About an hour after draining, add the new coolant through the radiator hose to allow it to flow quickly into the radiator. Then, add another container of coolant to the coolant reservoir until it is nearly full. Start the engine and let it run for about 10 minutes. During this time, the coolant level will drop slightly as air is purged from the cooling system. Top up the coolant again until it reaches the "MAXT" mark on the reservoir.
