A lot of information has been written about the liquids consumed by the cooling system. But here's how to properly fill and top up these fluids in the cooling system, the conversation will go for the first time.
Recall that mixing different refrigerants is unacceptable in most cases, since at the outlet a mixed cocktail may precipitate, which will not disappear by itself, but will methodically coke thin radiator tubes and other delicate parts of the cooling system. Therefore, it is worth filling in only liquids indicated for use that have been approved by the car manufacturer, and adding only the same component that fills the already existing SOD with its base.
The question of how antifreeze or antifreeze behaves when topped up in ordinary water can be left open. Concentrates of these substances give excellent performance with water in certain permissible proportions, again if distilled water is poured, and not a composition of chlorine, sodium, magnesium and potassium, which often comes out of a water tap.
Again, we remind you that the color of the coolant does not affect its composition in any way - green, blue, red liquids can be compatible with each other, when they are the same in color, for example, yellow, they can have a completely different structure, additives and base.
How to pour antifreeze into the cooling system?
Antifreeze is mainly used in modern cars, using its example we will tell you how to properly fill and top up this substance for the normal operation of the cooling system.
The most common mistake is pouring liquid into the radiator bell. Indeed, this unit has a filling hole, but only in those models that are to be disassembled.
A tightly soldered radiator system does not imply direct pouring and topping up, antifreeze enters it through an expansion tank, into which the refrigerant is mainly poured, then flowing evenly into all nodes of the cooling system.
By the way, when the coolant changes completely, the main reason for which is a simple brand change or replacement of the old one with a new one, then the collapsible radiator models are merged separately, with their own lower hole, and the rest of the liquid drains through an additional plug, which is sometimes covered on the bottom with protection.
In this matter, the instruction is always helpful, since various car models may have their own modifications of the cooling system and non-standard drain and filler holes, especially for English-made cars. Otherwise, the procedure for filling antifreeze and other coolants can be divided into several simple steps. There is nothing complicated about this, so the refrigerant change can occur independently.
Step-by-step instructions for replacing antifreeze
1. Buy the desired high-quality antifreeze (we look at the characteristics and indications in the instructions for using the car, comparing it with the manufacturer's label).
2. Start the car and let it work without loads for 10 minutes, then transfer or set the interior heater to the maximum maximum position, in other words, turn on the stove to its fullest. After that, turn off the engine.
3. Drain old antifreeze throughout the cooling system.
To do this, it is better to set the car so that its front part is lower than the rear, then the coolant will drain more actively from all nooks and crannies. Then it is necessary to turn the plug of the expansion tank so that the excess pressure finds an outlet (in some models it is necessary to turn the plug on the radiator, and sometimes it is necessary to turn two plugs at once). After the liquid in the system is not pumped, it will quickly cool down and will not give you the opportunity to get burned. As soon as the cork can be touched with an unprotected hand, it should be opened completely. Then also open the drain outlet at the bottom of the radiator, after substituting unnecessary containers, in which it will later be possible to dispose of the used antifreeze.
4. Flushing the system.
After that. as all the coolant is completely drained, it is necessary to flush the cooling system.
This is done only when switching to new brands of antifreeze or in the case when the system has not undergone preventive maintenance for a long time. Distilled water perfectly washes away corrosive deposits, removes scale. If the dirt has accumulated, then you should use special flushes for the cooling system, which will help expel the dirt.
If it is decided to use ordinary water, then this procedure will have to be repeated two or three times. Namely ... fill in the flush, close the taps, do this operation only on a cold engine. Then close all plugs and start flushing for 10 - 15 minutes (or as indicated in the instructions) to clean the system. Then perform the first two steps in the same order as when draining the used antifreeze. If you want to save money, then the first flush of a very dirty cooling system can be carried out under the pressure of ordinary water, and only then use special equipment or distilled water. On average, three washing queues are enough for the SOD to become like new. Yes, one more moment. It is at this time that it is worth checking all gaskets, fittings and pipes for wear and replacing them if necessary.
After cleaning the system, fresh working antifreeze is poured, which was purchased earlier.
Filling occurs in the radiator neck (only for collapsible models), and mainly in the expansion tank. By the way, you should carefully follow these steps and not confuse the expansion tank with the washer tank, they are usually located side by side and are very similar to each other.
Antifreeze should be filled in without haste, but also without stops, which can cause air to enter the system, then it will take a long time to pump.
It is also necessary to monitor the fluid level when filling antifreeze:
- for a radiator, this is the lower mark (risk);
- for a drain barrel - a maximum, since the liquid will then diverge to all corners of the cooling system and its volume in the tank will decrease.
6. Bleed air. When the antifreeze injection is completed, air should be bled from the system.
This is done by means of a crane - a screw located on the engine block. As soon as the first drops of liquid appear, this will be a signal that all the air has left, and the valve can be turned back up to the stop.
After this final procedure, it is necessary to start the engine of the car again and let it run, allowing gas supply five minutes after the start. Then turn off the car again, wait a few minutes and check the level of antifreeze in the expansion tank. If necessary, add liquid to the norm. Also, after a complete replacement, antifreeze should be checked for a week every day, since it is at this time that hidden problems in the system that were previously invisible can be revealed.
How to top up antifreeze?
Any addition of antifreeze to the cooling system and other refrigerants occurs only through the opening of the expansion tank.
To do this, remove the cover and check for fluid. The minimum level should alert, and the maximum for a month is also out of the norm, so it’s better that there is a golden mean.
As mentioned above, antifreeze can only be added with the same composition, regardless of color, but it is better to use the same manufacturer, since there is a difference in additives even for completely identical coolants, depending on the batch.
Topping up is carried out most often in the winter season. This is associated with the loss of fluid during cooling and heating (simple machine, idle plant). Such toppings are normal and you should not be afraid of them. If the antifreeze consumption becomes high, and the system check did not show any malfunctions, then it is worth considering changing the refrigerant with a more resistant formula to freezing and expansion.
Car maintenance often requires personal effort from the owner. Sometimes there is simply no service nearby that could serve and fill the necessary fluids into the car, and sometimes there is no desire to pay a lot of money for service. Therefore, many motorists are interested in the features of self-service. One of the regular processes that you will need to perform during the operation of the machine is the replacement or addition of antifreeze in the cooling system. This is a liquid that circulates through pipes and radiators in the peripheral system of the engine and allows us not to think about the complexities of the temperature operation of the machine.
Naturally, over time, any liquid becomes unusable, its use becomes less effective. There are different beliefs about when to change antifreeze. But the replacement process is unambiguous, and it should be followed without exception. Since it is high-quality work with antifreeze that will preserve the reliability and durability of the engine. The cooling system is one of the most important peripheral elements of the power unit. Without its normal functioning, the engine will not be able to please you with reliable operation. Consider the features of replacing antifreeze.
When to change antifreeze - the main factors for replacing fluid
There are several situations that can force a driver to change the antifreeze in their car. Some of them are connected with external circumstances, and the other part - with the operational properties of the machine. To understand how important it is to change the antifreeze in the car on time, you need to consider how bad coolant affects the operation of vehicles. The fact is that bad antifreeze with additives and dilutions can boil, lose its properties of a temperature buffer. The engine overheats and runs at elevated temperatures. The main reasons for replacing antifreeze are as follows:
- the color of the liquid in the expansion tank has darkened or has begun to change in some other direction;
- the liquid level began to float noticeably, which indicates a loss of antifreeze temperature resistance;
- you have purchased a used car - in this case it is better to immediately replace all technical fluids, belts and rollers;
- the last 45 thousand kilometers you have not replaced the antifreeze in your car;
- the engine began to constantly warm up or work in cold mode without reaching the desired temperature;
- you perform regular technical work to fix certain problems or clarify the problem.
In any of these cases, it would be better to replace the antifreeze and get a guarantee of the quality of the engine cooling unit. The replacement interval of 45 thousand kilometers is clearly indicated approximately, because each manufacturer produces a liquid for the cooling system with its own technologies. Therefore, it is necessary not only to take into account this general recommendation, but also to read the instructions of the manufacturers, as well as visually observe the condition of the liquid in the expansion tank. This will help you get out of trouble and get reliable operation of all systems in your car.
How to change antifreeze and not mix old fluid with new?
To replace antifreeze in a car, you must read the operating instructions for the vehicle. Below we will describe the general process of replacing the coolant in any car, but there are vehicles that have individual characteristics and requirements for this process. First and foremost, British car owners need to dive into the factory manuals. Often in these brands you can find specific drain plugs that will help you completely get rid of used antifreeze. The general fluid replacement scheme is as follows:
- wait until the car has completely cooled down after operation (the fluid temperature will be below 40 degrees);
- unscrew the cap of the expansion tank so that the liquid can suck in air and leave the system;
- then substitute the containers under the plugs of the cooling system at the bottom of the car for subsequent draining;
- unscrew the plug on the radiator at the bottom, as well as on the engine housing (or according to the instructions);
- also unscrew the plug at the top of the radiator to allow liquid to drain normally from thin pipes;
- wait until all the liquid has drained, in no case start the engine, but fully open the stove (or first turn on the climate for heating);
- when the liquid has finished draining, tighten the plugs at the bottom of the radiator and in the engine (the upper radiator plug can be left for now);
- pour the right amount of liquid through the expansion tank, do not rush, but do not pause;
- when the liquid is filled, close the radiator cap, start the engine and let it warm up the new liquid completely;
- if necessary, add more fluid to match the level indicated on the expansion tank.
Also do not forget to close the reservoir cap after performing all the necessary checks. It often happens that the cover remains open, through which the liquid pours over the entire engine compartment. As you can see, the process of replacing antifreeze turns out to be quite simple, there is no need to pay money for this business at the service. But if you are performing a set of works in a specialized workshop, you should find out the price of replacing antifreeze. Perhaps there is no point in messing with all these processes on your own.
How to choose a good antifreeze for a car?
When choosing antifreeze for your car, we recommend that you fully adhere to the recommendations of the manufacturers. This is an important point that will help maintain the performance properties of the engine and prevent overheating during operation. If for domestic cars overheating of the engine by 5 degrees is a normal condition for use, then for Japanese units, for example, this will bring serious problems. Therefore, it is necessary to choose a liquid with an understanding of all responsibility. In particular, the following factors will have to be taken into account when buying:
- technical characteristics of antifreeze fully comply with the requirements specified in the instructions for your car;
- the liquid container is sealed at the factory, the lid is protected from involuntary unscrewing;
- the plastic of the container is transparent or light, through it you can clearly see the color of the liquid;
- the color is bright and saturated, it will be perfectly visible through the plastic of the expansion tank in your car;
- the cost of antifreeze is not the lowest among all the options offered, this is an indicator of a fake;
- manufacturer known in the world of motorists, you should not buy liquid brands that you have not heard of.
These are not strict requirements for the purchase of antifreeze, but only recommendations that will help you purchase a quality liquid. The operation of a car is often associated with the search for equipment or technical means for repair and restoration work. And in each such case, it is necessary to coordinate your purchase with the requirements of the manufacturer and other important factors in the quality of the purchased liquid. Such solutions will help you get the maximum quality in the operation of the power unit and other elements of your car. See the fluid change in an old Volkswagen using the following video as an example:
Summing up
It is difficult to say how correct the decision to replace antifreeze on your own will be, if it is possible to use the inexpensive services of specialists. By the way, at many service stations, when buying antifreeze, they offer a replacement for free. This is an important point that will save you time and money. If there is no opportunity to turn to professionals, then the only right solution would be to independently replace the technical fluid in the machine’s cooling system.
In any case, the terms of service should not be missed. You need to make sure that your car gets the proper quality of the equipment and does not constantly overheat or run in a cold mode. To do this, it is necessary to use high-quality technical fluids and replace them correctly, without mixing with waste materials. If you have already changed the antifreeze in your car yourself, tell us about this experience in the comments to the post.
Every car needs a fluid to keep its engine cool. Car owners will one day see that the amount of antifreeze has dropped to min. What to do, how to add antifreeze? You can go to the service station, or you can top it up yourself. This topic is relevant for both beginners and experienced motorists.
be careful
Do not rush to pour coolant when the engine is still hot. The consequences of this action are damage to the cylinder block. Make sure the engine is cold before adding coolant.. If it is necessary to replenish the level of the product, and it is not possible to cool the engine, do it when it is warm.
Topping up antifreeze should be done with a liquid of the same brand. In order for the cooling of the system to be of high quality and correct, it is necessary to add antifreeze in combination with distilled water. We correlate liquids 1:1.
Mixing different coolants can lead to premature repairs. In progress try not to spill liquid on other parts, which may damage them. In case of contact, wipe the surface.
If the coolant level is often at the min mark, do not rush to think about how to add antifreeze. Contact a service station or independently check the tightness of the cooling system.
How to do it yourself
In order not to contact the service station workers, you can find out how to properly add antifreeze. Follow the rules that are written above and follow the following points.
- Wrap your hand with a rag (put on gloves) and remove the expansion tank cap. Reduce the pressure by turning the cap one turn. As soon as it falls, completely remove the cover.
- Add liquid to the tank to an average level.
- We start the engine of the car. We give time to work. We pay attention to how much antifreeze is available. If necessary, fill the tank.
- Antifreeze should be at the level of the lower end of the radiator filler neck.
- We continue to add liquid. We do this carefully, without spilling.
- We close the lid.
To perform this procedure, you must first prepare the cooler itself, distilled water, with which you will dilute the cooler, a rag (gloves) and an expansion tank.
Water water discord
Some car owners believe that in the summer it is possible to drive only water into the tank. This is an erroneous opinion.
Distilled water can be diluted with antifreeze, but in its pure form, water will lead to rapid wear of parts. After using the water, you will have to spend money on flushing the system from scale. But the cooler includes various necessary components that ensure correct operation.
Is it possible to add antifreeze, and if so, how to perform this procedure. It is this question that interests novice drivers when trying to fix problems with a decrease in the level of coolant (coolant). We will immediately answer it - yes, you can add antifreeze, however, with some reservations regarding the type of antifreeze and the sequence of the procedure itself. Next, we will talk about these nuances, and how to choose the right coolant, how to top it up correctly, and also analyze the topping up process using the example of the popular Hyundai Solaris car in our country.
Antifreeze Functions
Before we proceed directly to the description of the coolant replacement procedure, I would like to dwell on the functions that it performs. This is necessary in order to make it clear in the future the purpose of the operations performed by the car owner, as well as the factors that need to be feared.
So, the first and main task of antifreeze is cooling of the power unit of the machine. However, in addition, the coolant reduces the load on individual engine parts, and also prevents corrosion on their surfaces. This is ensured by the presence of special additives and additives in the liquid.
Due to the constant circulation in the system, antifreeze gradually loses its properties. More precisely, they are lost by the additives included in its composition, and water evaporates from the composition of the liquid. The composition itself becomes darker, and loses its heat-absorbing properties.
The choice of antifreeze to replace
Before how to add antifreeze, it is necessary to determine its type. Remember that ideally, you should always use only one coolant recommended by your vehicle manufacturer. For more information, see the manual or reference literature. In most cases, the use of coolants of different classes and brands is allowed. And when topping up, use only the one that was filled earlier. Failure to comply with this rule may result in a malfunction of the cooling system.
Top up and mix only antifreezes belonging to the same class. They differ in marking on the package, and not in color, as many people think!
As for the Hyundai Solaris car, the following types of antifreeze can be used for it:
- G-11. Such compositions belong to the hybrid group - hybrid, hybrid coolants, HOAT (Hybrid Organic Acid Technology);
- . They belong to carboxylate compounds - Carboxylate coolants, OAT (Organic Acid Technology);
- G-12++ and G-13. These are the most modern and technologically advanced liquids that belong to Lobrid type antifreezes ("Lobrid").
If it is necessary to add more than 30% of the total volume, then it is better not to add antifreeze, but to completely fill in new fluid.
Accordingly, only hybrids can be mixed with hybrids, carboxylates with carboxylates, and lobrids with lobrids. Mixing antifreezes of various classes Absolutely forbidden. The only exception is G12+ antifreeze, which can be added to G11 and G12 fluids. Also it is impossible to add domestic "Tosol" to antifreeze because their chemical compositions are very different.
Remember that antifreeze is sold in stores in two formulations - completely ready to be poured into the cooling system and as a concentrate. Pay attention to this because pure concentrate must not be added to the coolant in the vehicle system. Even if they belong to the same class. Therefore, if you bought concentrated antifreeze, dilute it in accordance with the instructions on the package. The choice of composition of the solution is usually dictated by the freezing temperature.
Directly for Hyundai Solaris, the manufacturer recommends using ethylene glycol-based coolant (antifreeze) for aluminum radiators.
Is it possible to add water to antifreeze
Regarding the question of the possibility of adding water to antifreeze, there are many disputes and opinions. Let's take the liberty of asserting that it is possible to add water to the coolant, but there are a couple of important points.
Firstly, the water must be distilled or at least well purified with filters. This is necessary so that the elements present in the liquid do not clog the engine cooling system and do not enter into a chemical reaction with the additives and additives present in the antifreeze.
Secondly, water can be added quite a bit - 100 ... 200 ml. Otherwise, it will dilute the “cooler” very much, and the latter will lose its operational properties (critical in winter). Therefore, it is possible to use water as a topping up liquid only in extreme cases, when the level in the system has dropped to a critical level, and you do not have a similar antifreeze at hand.
Now let's take a closer look at the arguments that suggest that water can still be mixed with antifreeze:
- The water that was added to the antifreeze will not impair its performance. Unlike coolants belonging to the other classes listed above. Such a statement can be made on the basis of the fact that the properties of antifreeze largely depend on volume ratios additives included in it. If they are violated (which happens when mixing "coolers" of different types), then the mentioned properties are reduced to "no". Water proportionally reduces their volumetric quantity, that is, their ratio remains the same.
- Contrary to popular belief, adding water to antifreeze lower the freezing point coolant. This statement can be made on the basis that the decrease in the volume of coolant in the system occurs mainly due to the evaporation of water. This process occurs when the safety valve on the expansion tank is opened. Water evaporates first, followed by ethylene glycol. Accordingly, if you add water, then the freezing point will be restored.
Remember that you can add only 100 ... 200 ml of water, because only such an amount will not increase the freezing point, since it will be reduced by increasing the pressure in the system.
The advisability of adding water is also related to the fact that most antifreezes themselves are about 70% water. This is largely due to the evaporation of liquid in the summer. But remember that in winter it is still not recommended to dilute antifreeze very much.
When to add antifreeze
Checking the coolant level
The next interesting question is how often to add antifreeze, and in what cases should this procedure be performed. Let's consider this information in more detail. There are several reasons why topping up is necessary. In particular:
- Visible decrease in the level of antifreeze in the system. This phenomenon can occur at any time due to leakage on the body of the expansion tank, radiator, pipes, connections, and so on. There are two marks on the expansion tank of the Hyundai Solaris car - L and F (respectively, LOW and FULL, low and high levels). If the level has fallen below the L mark, then it is necessary to top up the antifreeze. On other machines, instead of the mentioned marks, there may be other marks, but their essence will be similar.
If you recently topped up the coolant, but its level has become low again, you should look for a leak in the system.
- Antifreeze expired. This can be identified in various ways. If we talk about the Hyundai Solaris car, then in its cooling system the liquid must be changed in accordance with the service life of the “coolers” used. So, class G-11 antifreezes have a service life of 2 ... 3 years, class G12 - up to 5 years, G12 + - more than 5 years. However, the procedure can be performed more often if the antifreeze does not cope with its tasks, in particular, regular overheating of the engine is observed, and the liquid itself has turned black and thickened. This situation is possible if you bought a low-quality liquid or simply a fake.
Some cars have a special icon on the dashboard that indicates a low level of antifreeze.
- The safety valve on the expansion tank works intermittently. This suggests that the antifreeze is no longer working properly and is not absorbing the required amount of heat energy.
Checking the coolant level is always done with the machine on a level surface.
Remember that with an insufficient amount of coolant, an additional load is imposed on it, with which, firstly, it is not always able to cope, and secondly, the properties of antifreeze in this case are lost much faster. In addition, in such a situation, the coolant may not fully cope with the tasks assigned to it, and, accordingly, the engine will overheat(in this case, oil consumption may increase and other unpleasant consequences may appear). This concludes the theoretical part of the material, and we move on to practice, that is, directly to topping up.
How to top up antifreeze
We will consider the procedure using the example of the mentioned Hyundai Solaris car. However, most of the above actions and reasoning will be valid for most other machines. The differences concern only the location of individual components and mechanisms (in particular, the expansion tank).
Remember that it is necessary to add antifreeze only when it is cold, that is, with a cooled engine and cooling system. Otherwise, you risk getting burned!
So, at the Hyundai Solaris, the expansion tank of the cooling system is located on the right side of the engine compartment, directly on the system fan casing. The procedure itself is performed according to the following algorithm:
The location of the coolant expansion tank at the Hyundai Solaris
- It is advisable to install the machine on a slope so that its front end is higher. This is done so that the air from the system comes out without obstruction. However, if you plan to add a small amount of liquid, then this recommendation can be neglected.
- It is necessary to take a rag, and covering the cover of the expansion tank with it, carefully unscrew it. This is necessary in order to protect clothing and skin from possible splashes if there is excess pressure in the system.
- Top up coolant directly. Remember that it is necessary to top up with a thin stream so that the air located there leaves the system in parallel and an air lock does not form. That is, in such a way that when topping up, air bubbles do not form on the surface of the liquid. Otherwise, you will need to, which is associated with additional problems.
- Add fluid to a level of approx. for ⅔ of the volume of the tank, closer to the maximum mark. Then start the engine and let it run for 3...5 minutes. During this time, antifreeze will spread through the system and its level in the reservoir may drop.
- If this happens, then the topping up procedure must be repeated, and then restart the engine. This should be done until after the next engine start, the fluid level remains at the same level (in most cases, if you need to add a small amount of fluid, one such cycle will suffice).
- After completing the procedure, use a rag to get rid of possible splashes of antifreeze on the surface of the tank or other elements in the engine compartment, and tighten the tank cap.
We recommend you do not throw away the antifreeze canister. If there is still liquid left, you can add it again in the future. And if the canister is empty, you will always have at hand information about which brand of coolant was used. Accordingly, in the future you will be able to buy a new similar composition.
Flushing the system
The need to flush the car's cooling system may arise in such cases:
- The antifreeze used is very blackened and/or thickened. In this case, it must be replaced completely, despite the indicated period of its operation. This fact can be caused by two main reasons - either you forgot to change the fluid according to the regulations, or you bought a fake.
- If it is necessary to add more than 30% antifreeze to the existing volume. At the same time, the existing “cooler” must be drained, and the system should be flushed with distilled or ordinary water. You can also use other, more.
How to flush the engine cooling system
You can flush the engine cooling system in at least 4 ways. One of them is washing the outer part of it with ordinary water, but inside it is better to rinse it with a solution of citric acid or a special agent.
Results
Adding coolant is a simple procedure, and even an inexperienced car owner can handle it. The main thing at the same time is to observe safety precautions (perform the procedure with a cold engine and cooling system), as well as choose the right antifreeze that you plan to add. Try to make sure that no air lock forms during the topping up process. During the operation of the car, regularly monitor the level of coolant, and if necessary, do not forget to add it or change it completely.
For the correct operation of the car's power plant, it is important to know how to properly add and fill antifreeze into the cooling system. This unit is responsible for storing, supplying and circulating the refrigerant in the vehicle's engine. Proper functioning of the SOD (engine cooling system) protects the engine from overheating. Manufacturers' recommendations come down to replacing antifreeze or antifreeze every 40 thousand kilometers. However, many experts advise replacing the coolant (coolant) every year.
The higher the quality of the antifreeze used, the less likely the formation of corrosive processes in the SOD. It is worth noting that the difference between antifreeze and antifreeze does not allow them to be mixed with each other. Antifreeze is more aggressive, but cheaper, and its analogue has a softened structure and the addition of various additives, on which the color of the coolant and some characteristics depend.
Refrigerant change
Every driver who cares about the condition of a soybean car should know how to properly add and fill antifreeze into the cooling system. Antifreeze should be selected in accordance with the recommendations of the car manufacturer. When choosing an coolant, you should not be guided by its color. Currently, this is more of a marketing gimmick than a refrigerant feature.
After activating the power unit for a few minutes, you need to move the heater controls to the maximum position. It is advisable to put the car on a slope, with the front up, which will allow the system to be freed from the old antifreeze as much as possible. After the engine has cooled down, unscrew the expansion tank cap to relieve pressure and open the fluid drain valve located at the bottom of the radiator near the oil filter.
If it is necessary to flush the system, after draining the coolant and closing the taps, distilled water is poured into it, the motor is turned on for pumping the SOD for several minutes. The procedure is repeated 2-3 times, until clean water without impurities is drained from the system. New antifreeze is filled through the radiator filler neck and into the expansion tank. At the first refueling, the coolant can be filled up to the maximum level line. After start-up, the refrigerant will disperse through the working pipes and the entire system.
Then, excess air should be bled through the cock on the cylinder block until condensation appears on it. The tap is twisted all the way, the motor is turned on for several minutes, the level of antifreeze is rechecked, if necessary, replenished to normal.
Features when adding coolant
If the antifreeze does not need to be completely replaced, it is topped up. You should find out the brand, type of liquid and supplement the contents to the required level with an identical composition. Manipulations are carried out with a cold engine, in order to avoid an accident. The required amount of refrigerant is added through the radiator inlet. You must first open the part cover to eliminate excess pressure. If there is air stagnation in the system, you need to warm up the engine and wait for the air to be removed.
Or water. This leads to the appearance of scale, which settles on the walls of the cooling system. The consequences of the reaction are a decrease in heat exchange and a decrease in the speed of some engine models. Also, do not add antifreeze to the very eyeballs, which is fraught with splashing out excess and getting them on the working parts of the power unit in a warm state.
Checking the level of antifreeze
The amount of coolant can be checked in two ways:
- By indicator light on the panel;
- Visually under the hood in the coolant tank.
It should be borne in mind that antifreeze is produced both in diluted and concentrated form (see article "
