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 interval should be shorter. Since driving conditions vary for each vehicle, the actual replacement should be based on usage. Monitor the coolant level and top it up promptly if it's low. If suspended particles, sediment, or discoloration are observed in the coolant, replace it immediately and flush the system. Coolant replacement procedure: Before a complete coolant replacement, conduct a thorough inspection to check for leaks or cracks in all hoses, with special attention to the five-way hose. Named for its five connecting interfaces to different components, the five-way hose distributes coolant to various parts of the vehicle. If coolant leakage is detected in this area, replace the hose or reseal the connections as needed. Drain the old coolant, then flush the system with clean water. Add water to the coolant reservoir and continuously circulate it through the engine cooling system. Start the engine and let it idle for 3 to 5 minutes to circulate the water. Initially, the discharged water may appear slightly pinkish. Continue flushing until clear water emerges. Remember to disconnect the heater hose to completely drain the heater core. Approximately one hour after draining, add new coolant through the radiator hose for rapid filling. Then pour another container of coolant into the reservoir until nearly full. Run the engine for about 10 minutes; as air is purged from the system, the coolant level will drop. Top up the coolant to the "MAX" mark on the reservoir.
