Coolant is one ofcomponents of the smooth and proper operation of engine components. Sooner or later it becomes necessary to replace the coolant in the car. Every car owner should know how to change the coolant, because there are not always funds for service stations.
Also, do not overlook the factthat not all stations work conscientious workers. Therefore, if you want to do well, it is better to do it yourself. So, today we will answer the question of how to change the coolant.
There are many types of coolant for transportfacilities. However, the choice of it should be taken with the utmost responsibility, as the coolant of poor quality can lead to overheating of the engine. And this will go into global problems with the power unit.
For several decades, many car owners have used water. However, its use had several major drawbacks:
- Low boiling point, which caused the engine to overheat on hot summer days.
- Water freezing at 0 ° C, because of which there is an expansion of the volume of water, which ultimately leads to the destruction of the unit.
- Scaling of metal parts.
Kinds
It was possible to get rid of such problems by using antifreeze (antifreeze). There are several types:
- Glycol based antifreeze.
- Based on propylene glycol.
- Antifreeze.
All of these fluids perfectly perform the functions of compliance with the temperature of the engine.
It is worth remembering that these fluids should not be mixed with each other. Using one of the above coolant, you can forget about the problems of boiling and freezing it in the engine.
What should be changed
Охлаждающая жидкость нужна для контроля engine temperature. When the engine is running, the fuel burns. In this case, a high temperature is detected inside the cylinders. As a result, thermal energy heats the metal elements of the engine - these are pistons, cylinder head, cylinders.
Thanks to a sophisticated cooling systemcollects heat and carries it to the radiator. In addition to the basic function of controlling heat and returning it from the engine to the radiator, the coolant has additional functions. The fluid is also intended to lubricate the water pump of the motor. The term replacement coolant is approximately 50,000 km. Upon reaching this period, the antifreeze loses the properties of heat transfer.
In addition, in the coolant begin to appearpollutants that spill over the entire cooling system. If you do not make a timely replacement of the coolant, the dirt will clog the water channels of the engine, which will subsequently lead to overheating of the engine and costly repairs.
What to prepare for replacement
Answering the question how to change the coolant, you need to prepare:
- Rubber gloves.
- Capacity to drain the coolant.
- Keys set.
- Flyover or lift.
- Clean water.
- New coolant.
How to change the coolant on the VAZ-2107
After the driver has picked up the best,According to him, the refrigerant, you need to replace the fluid. Initially, it is worth driving a car to a pit, a lift or overpass, substituting the wheel rails under the wheels and setting the gear lever to the 1st speed position.
Then you need to disconnect the "minus" terminal with the battery. If the car has additional crankcase protection, it is necessary to unscrew it, since in some cases it significantly prevents the coolant from draining.
How to change the coolant
- Under the radiator drain valve is set prepared capacity for the old coolant. You need to wait until the fluid is completely drained from the radiator.
- Next you need to move the container under the left side of the engine and unscrew the drain bolt of fluid from the cylinder block. For the best effect, you need to open the lid on the expansion tank.
- After all the liquid from the engine has been drained, all the drain plugs need to be screwed back.
- To properly change the coolantshould be washed. It is necessary to pour into the system well boiled water. In the old version of the car should be poured into the radiator and expansion tank. On newer cars, a radiator is installed without a lid, therefore filling is made only through the expansion tank.
- Once the water is filled, you need to start the engine and let it run for 5-10 minutes to flush the cooling system.
- Drain the water in the same way.
- Then pour the prepared liquid.In order that there is no air in the system, it is necessary to press on the pipes that fit the radiator. This method is suitable for those vehicles that have a radiator with a filler neck. You can also go to the hill, open the radiator cap and progazovat well. Then you can wrap the cover.
- There is another way that is suitable forcars with radiators without a lid, only need an assistant. Unscrew the return hose, which is suitable for the expansion tank, gradually pour the liquid into the tank. As soon as liquid flows through the return hose without interruption, it will be clear that the cooling system is completely filled. You should put the hose on the tank and add liquid to the desired level.
Coolant sensor replacement
Стоит помнить, что для наблюдения за состоянием antifreeze is necessary to check the performance of the coolant temperature sensor. Therefore, you need to know where this device is located. In some cars (for example, VAZ-2114) two temperature sensors are installed. One displays the temperature on the instrument panel, and the other turns the fan drive on or off.
How to change the coolant temperature sensor on the car? For this you need:
- Drain coolant from system.
- Remove the "minus" terminal from the battery.
- Disconnect the connector from the sensor.
- Using the key, unscrew the sensor and screw in the new one.
- Next, connect the wires to the sensor.
This completes the sensor replacement procedure.
