How often should the antifreeze be replaced in a BYD Song?

[SanCourtney]

BYD Song's antifreeze should be replaced every two years or 40,000 kilometers. Antifreeze prevents the coolant from freezing and cracking the radiator or damaging the engine cylinder block or head during cold winter parking. The BYD Song is a compact 5-door, 5-seat SUV with body dimensions of 4600mm in length, 1830mm in width, and 1700mm in height, with a wheelbase of 2660mm and a fuel tank capacity of 63 liters. The BYD Song is equipped with a 1.5T turbocharged engine, delivering a maximum power of 118 kilowatts at 5200 rpm, featuring front-wheel drive. The front suspension uses MacPherson independent suspension, while the rear suspension employs a multi-link independent suspension.

[EliasLynn]

Regarding the replacement of the coolant for the BYD Song, I believe it should be changed every two years or after driving 40,000 kilometers. I’ve been driving this car for several years, and that’s what the manual stated before. Before daily driving, I lift the engine hood to check the coolant reservoir—keeping the fluid level between the min-max marks is safe, and if the color changes from bright to cloudy, it’s a warning sign. Don’t neglect this. Last time, I was lazy and didn’t replace it for half a year, and the engine almost overheated during a summer long-distance trip. Fortunately, I noticed it in time, avoiding major issues. I recommend handling it along with the maintenance cycle and getting it replaced at a professional shop—only the correct mixing ratio can protect the engine. Winter is approaching, so replacing the coolant prevents freezing risks and ensures peace of mind while driving. Developing a habit of regular checks saves trouble later.

[VonMatteo]

Regular maintenance of coolant is crucial for long-term driving. For the BYD Song, I recommend replacing it every two years or 40,000 kilometers. This prevents the fluid from deteriorating and corroding the pipes, as engine overheating or freezing can cause severe damage. I also regularly check the fluid's condition; if it smells sour or the level drops too quickly, it's time for a change. It's safer to have it handled professionally, and avoid mixing different brands of coolant to prevent chemical reactions. After replacement, the car runs noticeably smoother. This small expense can avoid major engine repairs and extend the vehicle's lifespan. Remember, regular checks are the foundation of safe driving—don't wait for problems to arise before taking action.

[LeRobert]

I've been driving my BYD Song for two or three years, and I follow the antifreeze replacement schedule recommended in the manual: every two years or 40,000 kilometers. A simple check is to ensure the fluid level in the reservoir is above the middle line, and if the color turns yellow, it's time for a change. Not replacing it on time can reduce the cooling system's efficiency, increasing risks during hot summers or cold winters. I usually handle it during routine maintenance—it's not expensive but ensures peace of mind while driving.

[DelBentley]

From a technical perspective, the BYD Song's coolant should be replaced every two years or 40,000 kilometers, as the additives in the fluid degrade over time, losing their anti-corrosion and antifreeze capabilities. You can regularly check the coolant using a freezing point tester—if the reading exceeds the limit, it indicates the coolant has failed. The replacement process involves draining the old fluid, flushing the system, and then refilling it with new coolant, ensuring the mixing ratio is consistent. Regular maintenance helps prevent engine overheating issues.

[JasonAnn]

My experience is that it's best to change the coolant every two years or after driving 40,000 kilometers, especially for cars like the BYD Song. Safe driving is the top priority, as not changing the fluid can lead to engine overheating accidents. I personally check the fluid level and color every six months, and address it if it appears cloudy. For replacement, go to a professional shop to ensure no air remains—small actions protect major safety.