How Often Should the Coolant in a Passat Be Replaced?
1 Answers
Passat's coolant should be replaced every 40,000 kilometers or two years. The method for replacing the coolant is as follows: Before completely replacing the coolant, conduct a thorough inspection to check for any signs of leakage or cracks in the pipes, with a particular focus on the five-way hose. The five-way hose is named for its five connections to various parts, and the coolant is distributed to different sections of the car after flowing through it. If there is any leakage of coolant in this area, replace the hose or resecure the connections as needed. Drain the old coolant, then flush the liquid channels with clean water. Add clean water to the coolant reservoir, then continue adding water to the reservoir so that it continuously flows through the engine cooling system. Start the engine and let it idle for 3 to 5 minutes to circulate the water. Initially, the water flowing out of the reservoir will have a faint pink tint. Continue adding clean water until the outflow is clear. Remember to remove the heater hose and drain the water from the heater core. After draining for about an hour, add the new coolant through the radiator hose to allow it to flow quickly into the radiator. Then, add another bottle of coolant to the reservoir until it is nearly full. Start the engine and let it run for about 10 minutes. As some air is expelled from the cooling system, the coolant level will drop. Add more coolant until it reaches the "MAXT" mark on the reservoir.
