The steps to replace the Baojun 310 heater water tank are as follows:
1. When the car engine is cooling, unscrew the water tank cover, open the water tank drain valve (at the bottom of the water tank), and release the antifreeze liquid.
2. Insert a rubber tube connected to the tap water pipe into the water filling port of the water tank, open the tap, and allow tap water to flow continuously through the engine cooling system. During the flushing operation, make the engine idle and maintain the above operation until clean water is released from the water tank.
3. Close the water faucet, wait until the water in the cooling system is drained, and then close the water tank drain valve.
4. Add antifreeze from the water filling port of the water tank so that the antifreeze fills the water tank. Unscrew the tank cap, add antifreeze, and reach the Max mark. Be careful not to exceed the Max mark.
5. Cover the water tank cap and reservoir cap and tighten them.
6. Start the engine, run it at idle speed for 2 to 3 minutes, and then unscrew the water tank cover. At this time, due to the elimination of part of the air in the cooling system, the antifreeze level will decrease. At this time, the antifreeze should be replenished until the antifreeze reaches the Max mark.
7. Close the water tank cover.