On the dashboard, in addition to speed, speed and fuel level, there is an additional thermometer. Many people don't care about hygrometers. In fact, the temperature of the water is a very important issue. Now let's introduce the importance of water temperature!What's going on with the water temperature warning light and how to solve it?
Normally, the water temperature of the engine is 90 degrees. If it's too high or too low, or quickly raise or decrease. There is a malfunction in the vehicle's cooling system. If the temperature warning light is on, there is a good chance that the cause of the temperature increase ......Check it out!
Reason 1. Insufficient coolant.
A leak of coolant can cause it to rise in temperature. At this time, it is necessary to check whether the coolant is leaking!If so, the leaking pipes should be repaired quickly. If not, a coolant of the same product should be added immediately!It is not recommended to add water, especially in winter, as it will dilute the coolant, even if it does not cause malfunction!
Reason two. The water tank is too dirty.
The water tank is too dirty and the evaporation tank needs to be cleaned.
Reason three. The engine has a high water temperature.
When the water temperature light alarms, we have to park the car in a safe place first, and then get out of the car to see if the antifreeze is insufficient, if it is insufficient, it should be replenished in time, and at the same time pay attention to whether there is a water leakage, if there is, it should be repaired in time.
Reason four. 
There is a problem with the cooling fan.
When running at high speed, the heat in the engine cannot be transferred to the antifreeze in time, which affects the heat dissipation, and then the temperature of the antifreeze rises and boils. In such a situation, such as when driving, slow down first. Let's see if there is something wrong with the fan, and if there is, fix it quickly, don't wait until it boils to repair it!
Reason five. Lack of antifreeze.
If there is a lot of antifreeze, it may be that the water temperature of the car is too high, in this case, we should ask a professional maintenance personnel to check it to see if it is the first problem, and then carry out repairs. If there is a water temperature indicator warning, stop driving to avoid damage to the engine due to high engine temperature.
Reason six. There was a problem with the circulating water pump and it didn't work.
When the pump fails, the engine's heat conduction surface water circulation will not function properly. The cooling system of the engine malfunctions, and there is a situation of "boiling the pot"!It must be detected and solved in advance. Generally, if the pump fails, either the bearing is locked or the impeller is broken!It is unlikely that the bearings will be locked. Blinds cannot be replaced with something else.
If the fuel tank temperature is too high, be sure to park your car on the side of the road and never continue driving. Failure to do so will cause direct damage to the engine. It will lead to repeated cylinder pulling, etc., and in severe cases, it will also cause engine maintenance. Therefore, be sure to turn off the engine immediately, wait for service, and never continue driving. There used to be a car owner who kept driving because he didn't know what was going on, and after 10 kilometers, the engine broke down and needed to be repaired, which is not a good thing.
The water temperature light is on the treatment method.
1.The indicator light of the water temperature gauge is on, indicating that the water temperature of the engine is about 90 degrees higher than the normal working temperature.
If the water temperature is too high, there is a risk of boiling, also known as "boiling the pot". When the temperature warning light on the meter is on, you can no longer drive, you can stop and wait for the water temperature to drop, and then go to the workshop for maintenance.
2.When the water temperature alarm light is on, and the water temperature is too high alarm, you should first slow down and stop.
Because the water temperature is too high, the temperature of the piston, steel wall, cylinder, crankshaft and other parts will rise, so that the lubricating oil will be diluted, and the lubrication effect will be lost. If you stop at this time, the parts are swelled, the gap between the parts is very small, and some soft metals will fall off after stopping, and some will also cause the cylinder to stick to the cylinder. Therefore, once you find that it is boiling, do not turn it off immediately, but let it idle for a while to try to cool it down.
3.Do not pour cold water on the engine when cooling down, as this may cause the engine block to burst due to quenching.
Correct method: Wear gloves, cover the lid of the tank with a folded damp cloth, gently unscrew a gap to allow the steam to drain slowly, and add cold water or antifreeze when the air pressure in the tank drops.
4.The high water temperature is also caused by the engine's water circulation not being smooth and the temperature cannot be dropped.
Another is that there is too little water (antifreeze) to provide the most basic heat dissipation needs of the engine. In addition, the cooling fan does not work, cannot cool the radiator, and will also cause an alarm that the water temperature is too high.
Solution: If the amount of water decreases, check for water leakage. The fan does not rotate, please check the relay and safety. After the initial inspection of the above work, please go to the repair shop to make repairs to ensure the safety of the car. Another thing is that when the water temperature is too high, don't open the lid, otherwise you will get burned!