How to Replace Coolant in a Jetta?
1 Answers
Jetta car coolant replacement method: Before completely replacing the coolant, conduct a thorough inspection to check for any signs of leakage or cracks in the pipes, with a focus on the five-way hose. The five-way hose gets its name from having five connections to different parts, and the coolant is distributed to various sections of the car after flowing through it. If there is any coolant leakage in this part, replace the hose or re-secure the connections as needed. Drain the old coolant, then flush the liquid channels with clean water. Add water to the coolant reservoir, then continuously inject water into the reservoir so that it 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 draining from the reservoir will have a faint pink tint. Continue adding clean water until the drained water runs clear. Note: 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. During this time, the coolant level will drop slightly as air is purged from the cooling system. Top up the coolant to the maximum mark "MAXT" on the reservoir.
