How often should the coolant be replaced in a Golf 7?
1 Answers
The coolant in a Golf 7 generally needs to be replaced every 2 years or 40,000 kilometers. This is just a reference interval. For commercial vehicles with higher mileage, the replacement cycle should be shorter. Since driving conditions vary for each vehicle, the replacement should be based on actual usage. Check the coolant level regularly and top it up if it is low. If you notice any suspended particles, sediment, or discoloration in the coolant, replace it immediately and clean the system. Coolant replacement method: Before completely replacing the coolant, conduct a thorough inspection to check for any leaks or cracks in the pipes, with a focus on the five-way hose. The five-way hose is named for its five connection points that distribute coolant to different parts of the vehicle. If there are any signs of coolant leakage in this area, replace the hose or reseal the connections as needed. Drain the old coolant and flush the system with clean water. Add water to the coolant reservoir and continuously flush the engine cooling system. Let the engine idle for 3 to 5 minutes to circulate the water. Initially, the water draining from the system may appear slightly pink. Continue flushing until clean water flows out. Remember to remove the heater hose and drain the water from the heater core. After draining for about an hour, add new coolant through the radiator hose to allow it to flow quickly into the radiator. Then, fill the coolant reservoir with another batch of coolant until it is nearly full. Start the engine and let it run for about 10 minutes. As the cooling system expels air, the coolant level will drop. Top it up again to the "MAXT" mark on the reservoir.
