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 gets its name from having five connections to different parts of the car. The coolant flows through the five-way hose and is then distributed to various parts of the vehicle to perform its function. If there is any leakage of coolant in this section, the hose should be replaced or the connections re-secured as needed. Drain the old coolant, then flush the liquid channels with clean water. Add clean water to the coolant reservoir and continue to fill it until water flows continuously through the engine cooling system. Then, idle the engine for 3 to 5 minutes to circulate the water. The water initially draining from the reservoir may have a faint pink tint. Continue adding clean water until the water coming out is clear. Remember to remove the heater hose and drain the water from the heater core. Approximately one hour after draining, add the new coolant through the radiator hose. This allows the coolant to flow quickly into the radiator. Then, add another container of coolant to the reservoir until it is nearly full. Start the engine and let it run for about 10 minutes. As the cooling system expels some air, the coolant level will drop. Add more coolant until it reaches the "MAXT" mark on the reservoir.
