When the indicator light is on, it means that the engine coolant is insufficient, and the coolant should be replenished in time. Under normal circumstances, the coolant flows and circulates in the engine water jacket, cooling system and air conditioning heating system without obvious reduction. The indicator light of low coolant level is on, which may be caused by the leakage of cooling system pipeline.
Coolant is very important to the engine;
1. Proper use of coolant can prevent corrosion, cavitation, leakage, radiator boiling, scaling and freezing, keep the cooling system in the best working condition and ensure the normal working temperature of the engine. If you don't pay attention to it in use, it will seriously affect the normal working performance and life of the engine.
2. For the traditional engine, the coolant temperature that can ensure the normal operation of the engine is 80℃ ~ 90℃, but the engine has a large mechanical heat load and high friction heat, so the requirement for the normal working temperature of the coolant is raised to 95℃ ~ 105℃. In addition, we should pay attention to the continuity of coolant use. It is wrong to think that we only want to use it in winter. We only know the anti-freezing function of coolant, but ignore the anti-corrosion, anti-boiling and anti-scaling functions of coolant.
Refer to the above? Baidu encyclopedia-coolant