Under normal circumstances, the consumption of coolant is very small. If you often drive for a long time, it will be like a taxi. Because the water temperature of the engine is around 90℃, the engine has no time to dissipate heat under long-term high load. The coolant will boil soon, and the evaporation is very large at this time.
solution
As long as the engine water circulation system can be normally replenished with coolant. If there are other problems, please solve them first, and then add coolant to the normal level.
2. Thermostat
Thermostat is a valve that controls the flow path of coolant. It is an automatic temperature regulating device, which usually includes a temperature sensing element, which opens and closes the flow of air, gas or liquid through thermal expansion or contraction.
According to the temperature of cooling water, the water inflow is automatically adjusted to change the circulating range of water, so as to adjust the heat dissipation capacity of the cooling system and ensure that it works in a suitable temperature range. The thermostat must be kept in good technical condition, otherwise it will seriously affect the normal work of the engine. If the thermostat main valve is opened too late, it will lead to overheating of the engine; If the main valve is opened too early, the engine warm-up time will be prolonged and the engine temperature will be too low.
solution
Is to add or replace a new thermostat.
3. Warm air water tank and heat exchanger
When using the heating function, be sure to pay attention to the use method. If it is not used properly, it will also affect the fuel consumption of the car. Heater is the general name of all heaters that use water as the medium for heat exchange or refrigeration. There are two types of hot water and cold water. SEMEM hot water heating fans are mostly used for heating in workshops, factories and industrial and mining enterprises in winter. Cold water heaters are mostly used in air conditioning, refrigeration and heat exchange systems in summer.
The blower drives the airflow, which passes through the heater core and blows into the cockpit through the vent in the car.
The heat of the heater core comes from part of the engine coolant. Coolant * flows out of the engine, taking away a lot of heat.
This part of heat is used to preheat the intake air, so it doesn't cost oil to start the compressor.
solution
If there is an exhaust port, exhaust it first. If you can't touch two warm air pipes with your hands and the temperature difference is great, you can directly flush the warm air water tank or heat exchanger with a water gun or an air gun.