How to Replace the Antifreeze in Baojun 310?

[SanKiara]

Steps to replace the antifreeze in Baojun 310: 1. Drain the old antifreeze by inserting a hose connected to a tap into the radiator filler neck until clean water flows out; 2. Add new antifreeze up to the Max mark, start the engine, and let it idle for 2 to 3 minutes; 3. As some air is expelled from the cooling system, the antifreeze level will drop, so top it up to the Max mark again. The Baojun 310 is a compact hatchback produced by SAIC-GM-Wuling. The car measures 4032mm in length, 1680mm in width, and 1450mm in height, with a wheelbase of 2550mm. It is equipped with two engines: a 1.2L naturally aspirated engine and a 1.5L DVVT naturally aspirated engine.

[PaisleeRose]

As a seasoned driver who's changed coolant three times myself, let me share some tips. First prepare bottled purified water and dedicated coolant – remember to wait until the engine completely cools down, at least three hours after turning it off. Unscrew the plastic drain plug at the radiator bottom (on my 310 model it's at the lower right), using a pan to catch the old fluid. After complete drainage, tighten the plug and slowly pour purified water through the radiator cap to flush the system, repeating 2-3 times until the water runs clear. Finally fill with new coolant to the MAX line, remembering to loosen the heater hose to bleed air. Start the engine until the temperature gauge reaches midpoint, then top up coolant to the midpoint. Special note: Dispose of old coolant properly as it's environmentally hazardous – I always take mine to repair shops for recycling. The whole process takes about 40 minutes and saves you around 200 yuan in labor costs.

[WalterMarie]

It's actually super easy to do it yourself, but safety is key. I always keep Phoenix brand coolant on hand, and the Baojun 310 needs about 4 liters. Wear rubber gloves before starting, and never open the cap when the cooling system is under pressure. Before draining, open the radiator cap a few times to release pressure. See the drain hole at the bottom right of the engine bay? Use pliers to turn it counterclockwise. Important reminder: Never flush the system with tap water—mineral deposits will clog the heater core! I learned this the hard way and now only use distilled water. When refilling, pour slowly with a funnel to avoid air bubbles. After changing, drive a couple of kilometers and recheck the level—it'll drop slightly due to thermal expansion. Finally, I recommend changing it every two years; friends in the south can use -25°C rated coolant.

[DelReid]

Last time at the repair shop, I observed the technician's meticulous procedure. First, remove the radiator cap when the engine is cold, then locate the blue plastic valve at the bottom of the radiator and rotate it 90 degrees to drain the fluid. The key step is using an air gun to blow out residual liquid, followed by pressurizing through the coolant reservoir opening to completely empty the remaining fluid in the system. The manufacturer specifies using ethylene glycol-based coolant, the pink variety. When refilling, pour in 3.5 liters first, start the vehicle, and top up only after the main circulation begins. Special attention must be paid to bleeding air from the cooling system, otherwise the temperature gauge will fluctuate erratically. Professional equipment should test the freezing point to -35°C. For DIY replacements, it's recommended to purchase branded products.

[LaAlice]

In emergency situations, you can do this: For temporary refill, simply unscrew the radiator cap, but be sure to cover it with a cloth and turn slowly to avoid steam burns. However, for a complete replacement, I recommend going to a repair shop. The Baojun 310 has a special design where the heater hose is positioned low, making it very troublesome to bleed the air yourself. Last time I helped my brother replace it, we found scale buildup in the thermostat housing after draining, so we cleaned it while we were at it. Remember to buy hose clamp pliers in advance—they're essential for replacing hoses. The coolant color must be consistent; mixing different types can cause gel formation. It's advisable to use the manufacturer-specified specification, which costs about sixty yuan per barrel.

[DiIker]

Our repair shop often encounters DIY mistake cases, sharing experience to help you avoid pitfalls. First remove the engine underguard, the Baojun 310 drain valve is located at the bottom right corner. The key point is that the thermostat must be removed for complete drainage, which isn't mentioned in the manual. Purchase 5 liters of coolant, with approximately 4.2 liters actually needed. Many forget to bleed air from the heater core, resulting in poor heating. A handy tip: when adding fluid, pinch the thick radiator hose to hear the 'puffing' sound of air escaping. Finally, use a tester to check the freezing point - only when it meets standards is it safe. Northern car owners must choose -40°C coolant, and store remaining liquid in glass bottles for future top-ups.