How to Replace Coolant in BYD F3?

[Grayson]

The steps to replace coolant in BYD F3: 1. Turn off the ignition; 2. Let the engine idle until the coolant temperature drops to normal; 3. Pull the front hood release lever; 4. Open the front hood; 5. Slowly unscrew the radiator cap to release pressure; 6. Disconnect the radiator hose, drain the coolant, then reconnect it; 7. Fill the radiator with new coolant and tighten the cap. The BYD F3 has a body length, width, and height of 4533mm, 1705mm, and 1490mm respectively, with a wheelbase of 2600mm. It features front-wheel drive, with a MacPherson strut front suspension and a torsion beam rear suspension. The BYD F3 is equipped with a 1.5L naturally aspirated engine paired with a 5-speed manual transmission, delivering a maximum power of 80kW and maximum torque of 148Nm.

[MacKhloe]

I've been driving my BYD F3 for several years now, and changing the coolant is something you need to be careful with to avoid burns. First, make sure the car is completely cooled down—it's best to do this after letting it sit overnight. Then, open the hood and locate the drain screw or valve at the bottom of the radiator. Loosen it to drain the old coolant, and have a basin ready to catch it to avoid making a mess on the ground. Next, flush the radiator with water a few times to remove any residue before tightening the valve. Before pouring in the new coolant, check that the type matches the factory standard—don’t use the wrong type, as red and green coolants are usually compatible. Slowly fill it until the level is between the min and max marks. Start the engine to circulate the coolant and release any air bubbles, then close the radiator cap and check for leaks. Wear gloves for protection throughout the process. The procedure for the BYD F3 is straightforward, and remember to change the coolant regularly to protect the engine from overheating and rust.

[LaKinsley]

If you're a beginner looking to DIY replace the coolant for a BYD F3, it's actually not difficult as long as you prepare some tools. The tools include new coolant, gloves, a wrench, and a fluid catch container. Wait until the car has cooled down—never operate when the engine is hot. After opening the hood, locate the plastic valve or drain plug under the radiator and carefully loosen it with the wrench to drain the old fluid, catching it in the container. Once drained, flush the radiator with water to ensure no residue remains. Then slowly pour in the new coolant to avoid air bubbles, filling it to the middle of the radiator's marked level. Finally, restart the car to circulate the coolant, check that the fluid level stabilizes, and securely close the hood. The entire process takes about 20 minutes and costs just a few dozen yuan—much cheaper than going to a shop.

[RhettLee]

How many basic steps are required to safely replace the coolant in a BYD F3? Before starting, turn off the engine and let the car cool for at least an hour. Open the front hood and locate the radiator drain valve, typically at the bottom side of the radiator, then loosen it to release the old coolant, ensuring it's caught to prevent contamination. If necessary, flush the system with clean water to remove impurities. Pour in new coolant, choosing a formula that matches the vehicle model, such as ethylene glycol type, and avoid mixing brands. Fill up to just below the MAX line according to the recommended ratio. Start the engine and let it run for a few minutes to expel air bubbles, then turn it off and check the fluid level. Once normal, secure the cap. This process can extend the cooling system's lifespan and reduce the risk of malfunctions.