How to Replace Coolant for BYD F3?

[McJosephine]

Method for replacing coolant in BYD F3: Before completely replacing the coolant, conduct a thorough inspection to check for any signs of leakage in the pipelines. Drain the old coolant, then flush the liquid channels with clean water. After draining for about an hour, add the new coolant through the radiator hose to allow the coolant to flow quickly into the radiator. Can different coolants be mixed: Only use the same brand of coolant.

[MarcusLee]

I've changed the coolant for my BYD F3 several times before. The procedure isn't difficult but requires safety precautions. After turning off the engine, wait at least one hour for it to cool down, otherwise there's a high risk of burns from hot liquid. Locate the radiator drain plug or reservoir drain plug in the engine compartment, use a wrench to open it, and let the old coolant flow into a catch pan. The BYD F3 typically uses green or red coolant. After preparing new coolant, I first flush the system - add some clean water and run the engine for a few minutes to rinse out rust and deposits, then drain completely. Next, pour new coolant up to the MAX line, start the engine to let it warm up, and the coolant level will drop after the fan circulates - top it up to the proper level. Finally, close the air bleeder valve and ensure there are no leaks. Remember to change it every 2 years or 30,000 kilometers to protect engine components.

[DeLane]

Changing the coolant for my BYD F3 by myself was quite simple, saving both money and hassle. The tools needed are just a drain pan, a wrench, and coolant—refer to the owner's manual for the recommended type. First, let the car cool down, then unscrew the radiator drain plug to release the old fluid. Avoid rushing to flush with water unless there's a rust issue. After that, pour in the new coolant—the BYD F3 takes about 4 liters. Start the engine and let it run for a few minutes with the heater on to bleed air, ensuring the new coolant distributes evenly. I always check for air bubbles and wait for the fluid level to stabilize before finishing. Don’t forget to test it for a day or two to ensure the engine temperature stays normal and doesn’t rise too quickly.

[Bella]

Replacing the coolant is part of routine maintenance. My BYD F3 requires a change every three years. The key is safe operation—only proceed when the engine is completely cooled. Locate the radiator drain plug at the front of the engine and unscrew it to drain the fluid. Wear gloves to protect your hands during the process, and clean up any spills to prevent dripping onto other components. Use the manufacturer-recommended type of new coolant to avoid corrosion in the pipes. After refilling, start the car to bleed the air from the system, and monitor the temperature gauge to ensure it's normal. Doing this yourself saves money, but beginners are advised to seek help from someone experienced.

[OAnastasia]

I often maintain my BYD F3 myself, and replacing the coolant isn't too complicated. After cooling the car, there's a small screw at the bottom of the radiator - just unscrew it to drain the old fluid. Then pour in new coolant, choosing a common long-life ethylene glycol type brand. Don't pour too quickly when adding fluid, leave some space to prevent air bubbles from forming. Start the engine to let the temperature rise, and I repeatedly check the fluid level to top it up to the standard line. Doing it yourself can save dozens of dollars in repair fees, but if tools are hard to find, just borrow them from an auto repair shop. Remember to choose cool weather for the operation, as it makes cleanup easier.

[Davis]

DIY changing the coolant for a BYD F3 is quite fun, and I do it every two years. The tools needed include a drain pan, gloves, and the correct coolant. After the car has cooled down, open the hood and locate the radiator drain plug to release the old fluid—BYD's design makes this easy to operate. Flushing is optional; just pour in clean water, run the engine for a few minutes, and drain out any remaining rust or debris. Pour the new coolant into the radiator filler neck, being careful to add it slowly to avoid spills. Start the engine and turn on the heating system to bleed air for about ten minutes, then check that the temperature is normal. The process is simple, cost-effective, and suitable for beginners to try.