What are the steps to replace car coolant?

[DiFrank]

The steps to replace car coolant are: 1. Open the vehicle's engine compartment hood, and you can see the coolant reservoir in the upper right corner; 2. Open the coolant drain plug under the radiator to drain the old coolant; 3. Add new coolant, tighten the cap, and the coolant replacement is complete. Functions of coolant: 1. Provides anti-corrosion protection for cooling system components; 2. Prevents scale buildup, avoiding reduced radiator efficiency; 3. Ensures the engine operates within the normal temperature range. Precautions for using coolant: 1. The coolant level needs to be checked regularly and replenished promptly if it falls below the lower limit; 2. Observe whether the coolant has any turbid sediment, and replace it promptly if there is; 3. Different vehicle models have different coolant colors, and they should not be mixed; 4. Before winter, measure the freezing point of the coolant to prevent it from freezing.