Welcome! Coolant - without it, cars would boil, because it plays the most basic role in the engine cooling system, namely, it flows through the pipes and cools them, and this liquid itself is cooled by the radiator and the fan that blows on it, as well as the radiator blows the air flow, this becomes especially noticeable when driving a car quickly, when the car practically does not heat up.

Note! In order to replace the coolant, you will need to stock up on: Firstly, an empty, preferably very wide container (It will be most convenient to use an ordinary basin, which is unnecessary for anyone, or if you are replacing it in a pit, then it will be possible also use a bucket, or something else where you will drain all the waste liquid), and you will also need to take with you a wrench somewhere “13” and “17” and find, as already mentioned, an inspection hole , because replacing the coolant in the inspection hole will be much more convenient than trying to drain it while the car is standing on the ground, although in this case it will be possible to jack it up, but keep in mind the fact that you will need to place bricks under the rear wheels, otherwise the car may simply fall off and fall to the ground, and by the way, if you lift the front of the car with jacks or with just one jack and put bars or boards under the other side (don’t ever put bricks under the car, there have been cases when they fell apart and the car fell to the floor), so make sure that the front part of your car is at the same level and make sure that the right part, for example, is not higher than the left, and the left is not higher than the right!

When should you change the coolant? In fact, it all depends on what kind of liquid you purchased in the store, respectively, if it is fake, then in this case you will have to replace it immediately, otherwise corrosion will begin to occur in parts of the car engine (More on this below in the “Note!” paragraph), but what should I do if I bought a car and the owner told me that he changed all the lubricants (Oil, antifreeze, etc.) in my purchased car, how can I check this, you ask?

It’s all very simple, in order to check whether it’s time to change the fluid or not, first open the expansion tank, which is closed with a lid (Open the tank only on a cold engine, otherwise if your system is depressurized, then the fluid may simply splash out sharply when the engine is heated and go jet, this will cause you burns), so after unscrewing the cap (Indicated by the arrow in the photo below), take a visual look at the color of the liquid you have in the tank, basically all liquids that cool the system have a certain color, that is, antifreeze can be blue , antifreeze red, etc.

Therefore, after you have looked into the tank, visually determine whether the fluid needs to be replaced or not, namely, it will need it if it changes its color to the color of rust, and also if an oil film appears on the surface (This can be very easily determined visually). .

Note! Many people put off replacing this fluid, but the car is running hot, so what do they say, remember once and for all, most engine parts, for example, parts such as the crankshaft, camshaft, the cylinder block itself, etc. They are lubricated with coolant due to the fact that small holes are made in these parts so that this liquid gets into them and cools them from inside, and in the case when the coolant becomes unusable, it begins to gradually, so to speak, devour all these parts due to why premature corrosion occurs, which can ultimately lead you to a major engine overhaul, but it seemed like it was just some kind of coolant, and so many troubles can be caused by it, so when purchasing, be careful too, as at the moment, a lot of fakes are sold on the market! (For information on how to identify counterfeit coolant, see the interesting article entitled: “Detailed information about antifreeze and the so-called antifreeze that is poured into a car engine.”)

How to replace coolant on a VAZ 2110-VAZ 2112?

Note! Before we begin, we will give you a couple of tips so that you are prepared to face this situation, namely, many car owners constantly grab their heads when they pour liquid into the tank, after which some time passes, they open the hood and see that the liquid has dropped below the level (Now you will understand where this is all leading, read carefully), we even once observed such a situation, a young man of about 20 years old came to us, he wanted us to change his expansion tank for a new one and he told us that I had recently poured new fluid into the reservoir, after which he drove the car and it fell a little, we asked him, and when you checked the fluid, the engine of your car was cooled down (That is, the check was carried out on a cold engine), he answered us that no, the engine was hot, but when he looked at the marks that are located on the sides of the barrel, he saw that a small part of the liquid had disappeared, we explain why this happened!

The thing is that the cooling system pipes constantly change their shape, they either expand (If the engine is very hot) or narrow (If the engine is cold), so as a rule, the coolant level should only be checked on a cold engine, because on a hot one it really is the fluid may even be less than the minimum MIN mark, but this does not mean that you need to immediately run and pour new fluid into the tank, in this case you just need to wait until the engine cools down, thereby you will even see how the fluid becomes a little more in expansion tank and only after that you will need to add new fluid into it and continue driving! Draining: 1) At the very beginning of the operation, find a place where your car will stand level, or if this is not possible, then place the car so that the front of the car is higher than the rear, but not vice versa.

2) Then remove the “-” terminal from the battery, otherwise if liquid gets on the exposed wires, a short circuit may occur, which in turn will cause a malfunction of the wires on which the liquid gets. (For information on how to remove this terminal, see the article: “Replacing the battery on all VAZs,” point 1)

3) Next (This operation is only for injection machines), remove the ignition module so that it does not interfere with unscrewing the drain plug of the cylinder block. (For information on how to remove the module, see the article: “Replacing the ignition module”)

Note! The module needs to be removed only with the bracket, because if you remove only one module, then in this case the bracket of this module will block the way to the drain plug, so we remove everything together!

4) Next, to drain the coolant from the system a little faster, unscrew the cap that covers the cooling expansion tank.

5) Then, using a wrench or, best of all, a spanner, completely unscrew the plug that is located on the engine cylinder block, you got to it earlier when you removed the ignition model from the car to access it, so for a more detailed location of this plug, look at photo below, where a man points his finger at this traffic jam:

Note! Before you start unscrewing this plug, be sure to place an empty “10 liter” container under this plug, and after this plug is unscrewed, drain all the coolant from the cylinder block into this container!

6) Then, when all the liquid from the block has been drained, we recommend that you wipe the car engine with any rag, namely, wipe the places where the liquid got in when draining.

7) Now do not wrap this plug and go to the plug that is located on the radiator and in the same way unscrew it completely, and drain all the liquid remaining in the radiator into a container.

Note! Next to the radiator drain hole there are wires and the generator itself. If possible, try to protect these things somehow, for example, throw a rubber rag over them so that liquid does not get on them, otherwise they can easily fail!

Next, screw all the unscrewed plugs back into place, because all the liquid from the system has been drained, so now we will move on to filling.

Filling: 1) First (This point applies only to the injector, but be sure to read the note if you have a carburetor), loosen the clamp and remove the fluid drainage hose from the throttle assembly, it is also called the throttle valve, and then put this in some convenient place hose (So that it does not fall) and pull the part with which it was connected to the throttle up to the very top and leave it like that.

Note! If we are talking about a carburetor engine, then in this case perform exactly the same operation but only with a slightly different hose, namely with the carburetor heating hose, it is indicated by the arrow below:

2) Then carefully start pouring coolant to the required level and watch whether this liquid flows from any hose, if it flows, immediately stop pouring the liquid (Put the canister on the floor) and put the hose in its place, and after putting it on, fill it liquid to the required level and tighten the plug.

Note! If you keep pouring liquid and pouring it, but it doesn’t come out of the hose, then stop pouring and grab this hose with your hand and then carefully lower it slightly, if the liquid poured as indicated by the arrow in the photo below, then in this case, put this hose in its place, tighten the clamp that secures it and continue to pour liquid into the tank to the required level!

3) And finally, if after replacement (no matter how long) you notice that your engine is heating up very much, and the stove is not heating at all (cold air is coming out), then in this case, remove the air lock from the system. (How to remove a plug on an injector, see the article: “Removing an air plug on a VAZ”)

Note! On the carburetor, the plug is removed in the same way as on the injector, so read the article to which there is a link if you have a carburetor, but just always remember that on the carburetor there is another hose, that is, a heating hose, and on the injector there is another hose that is connected to throttle fitting, in general, read it carefully and you will understand what we are talking about!

Important! 1. Be sure to change this fluid only on a cold engine, otherwise when the engine is hot, it sometimes heats up to very high temperatures of the order of 95-110 degrees and maybe even higher (The coolant temperature is shown on the instrument panel on a special sensor, some people still called the engine temperature sensor), so it cannot be replaced on a hot engine, because you can very easily get scalded by it when draining.

2. Also, be sure to take into account the fact that coolant is a very toxic substance, so if it gets on your skin or eyes, run immediately to the washbasin and rinse the area, otherwise this liquid will harm your body.

Note! By the way, do not take and under no circumstances leave an open bottle of this liquid at home, because the vapors of this liquid are also poisonous and can also harm your body!

3. And in conclusion, let’s note some factors, namely, replace this fluid only with gloves (You can do without them, but there is a possibility of drops of this fluid getting on the skin), and also do not under any circumstances drain the used fluid onto the ground, that’s all take care of the environment and, first of all, take care of the ecology of our country and something else, if you decide to add this liquid to the tank, for example, it runs out there, first of all, do not mix it with anything (Meaning exactly what is needed fill in liquid of the same brand and produced only from one manufacturer and this is mandatory) and secondly, after topping up, do not under any circumstances start the car with the expansion tank cap open, since it must be closed when starting!

Replacing antifreeze

The process of replacing antifreeze is very simple; our instructions will tell you what and where to unscrew. Follow the prescribed order of operations:

• The car must be placed on as level a surface as possible.
• If there is no horizontal platform, then position the front of the car higher than the rear
• Before starting work, the vehicle should be de-energized; the cost of negligence can be costly.
• Just disconnect the wires from the battery
• As often happens with the “creations” of the Volzhsky Automobile Plant, in order to get to one part (drain plug) we will have to remove another
• If the engine, as already mentioned, is model 2111, in order to calmly drain the antifreeze from the block, you need to unscrew the ignition module and its bracket
• To create an air flow into the cooling system, which will accelerate the drainage of liquid, it is necessary to remove the plug from the expansion tank, shown in the photo

Unscrew the cap from the tank to open air access to the system

• When we have gained access to the drain plug on the engine block, we place an empty container prepared in advance under the engine and then unscrew the plug
• Drain coolant carefully to avoid spilling this toxic chemical around the vehicle.
• After completing the operation, wipe the plug and the hole itself and around it with a clean rag.

We unscrew the drain plug, the container is already under the engine

• The next step is draining the fluid from the radiator
• Move the container under the radiator
• The procedure is similar to draining antifreeze from the block - you need to unscrew the plug and wait for the liquid to drain into the container

• After the liquid has completely drained and the cooling system has emptied, the plugs unscrewed from the radiator and block must be screwed into place
• If we mean a motor with a gasoline injection system, then you will need to loosen the clamp and pull off the antifreeze supply hose from the pipe where it connects to the throttle pipe fitting

Loosen the clamp and remove the antifreeze supply hose on the injector

• If we drained the coolant from the carburetor engine, then unscrew the hose from its connection with the carburetor heating fitting

Remove the pipe marked with a white arrow

• Such actions help avoid the appearance of the famous air locks that prevent fluid from filling the system evenly
• When filling the system with antifreeze, air will exit through these pipes and not get stuck in the system
• After the antifreeze has drained and before tightening the plugs, the cooling system is usually flushed with clean water, after which the plugs are tightened
• Then we fill the system with new coolant
• It is poured through the expansion tank until the level is level with the upper limit of the belt securing the tank
• After filling, screw the expansion tank cap into place.
• The hose that we unscrewed to bleed air is now returned to its place and screwed to the heating fitting
• Then (if you had to remove it) you need to put back the ignition module, which was preventing you from getting to the drain plug
• Then we connect the battery contacts
• Start the engine and warm it up
• Sometimes warming up can help push through any air pockets that have arisen, then the liquid leaves the tank
• When this happens, you need to turn off the engine and add coolant to the required level.

Replacing antifreeze on a VAZ 2112

Photo VAZ 2112

If you buy a car, put it in a cupboard and admire it, then you definitely won’t need to replace any working fluids. And since a normal car is constantly in use, it requires maintenance. One of the types of work that needs to be done is replacing antifreeze or antifreeze - in a word, coolant.

Cooling system design

This article provides instructions on how to replace antifreeze in a VAZ 2112 yourself. Here you will find some features that are important to pay attention to when replacing the coolant, a video on the replacement and a detailed description of the process itself.

Is it possible to mix

Despite the fact that classes G11, G12, G12+ contain ethylene glycol, different manufacturers use different types of additives. Therefore, I still would not recommend mixing even G12 and G12+. And even more so, you cannot mix G11 and G12 - a coagulation process will begin, which may result in a sediment in the form of flakes. The only thing is that if you have an emergency on the road and there is nothing at hand or in the nearest store, then you can mix G12 and G12+, as well as G11 and G12+, but under no circumstances should you mix G11 and G12! And as soon as possible, repair the car, drain the mixture, rinse the system several times with water and then fill in with fresh antifreeze. Also, if you want to switch from one class of antifreeze to another, then also flush the system before replacing. How I flushed the system, there is an entry in my blog.

WHY CHANGE ANTIFLEGE AND HOW OFTEN DO IT?

Let's start by answering the first question - do you need to change antifreeze and why change it? The answer is clear - it needs to be changed, since it, like everything else, has the excellent ability to lose its properties.

VAZ 2112 how to replace antifreeze

Plus, the loss of the quality of the liquid occurs not only from the expiration date, but also from the fact that it is in an engine that is subject to corrosion - that is, the antifreeze becomes brown or red.

How often is it necessary to replace antifreeze on a VAZ 2112? According to official data, this must be done every 2 years or every 45 thousand km. Some advise changing every year.

This is often not necessary. If the car is old and “leaks” every winter, then this can be done. But the VAZ 2112 is not a rare car, so once every two years will be enough. How else can you determine that antifreeze needs to be changed? This can be done by color.

Looking into the expansion tank, see what color the antifreeze has become. Pure antifreeze has a bright blue color. Black and red color is a clear indicator of the need for replacement.

Antifreeze should have the color as in the photo

ANTIFREEZE OR ANTIFREEZE?

The answer to this question is not clear-cut. If you do not take into account the car manufacturer, but look solely at the quality of the coolant, then antifreeze, of course, loses to antifreeze.

There are different types of antifreeze

Antifreeze has many additives that can make it very suitable for winter. Freezing and boiling temperatures can make a huge difference. Another point is that antifreeze is specially designed for VAZ cars. It is suitable for our climate and operating conditions. Another plus is that the price of antifreeze is much lower than that of antifreeze. Usually, owners of VAZ cars pour antifreeze and drive with a clear conscience.

ESSENTIAL TOOL

What tool is needed to replace antifreeze in your VAZ 2112:

• Head 13 with ratchet or wrench
• Head or wrench 17
• Key for 10
• Container for draining antifreeze
• Watering can

Any basin that will fit under the car will do.

That's probably all you need. As you can see, no special costs are required.

REPLACEMENT OF ANTISEASE

Now let's move on directly to replacing the antifreeze with our own hands.

Advice! Before replacing antifreeze, remove the protection from the engine. Firstly, the liquid will drain more easily. Secondly, it will be easier for you to “catch” the stream with a basin.

Removing protection for VAZ 2112

Before draining the antifreeze, unscrew the negative terminal of the battery. This is done to prevent the wires from shorting, because liquid will get on them.

Draining antifreeze

Drain the coolant. The fluid is drained only from a cold engine. So:

• First you will need to use a 13 and 17 key to unscrew the ignition module with the bracket. You can, of course, try and unscrew the drain plug from the block without removing the bracket, but more effort and nerves will be spent.

Replacing antifreeze VAZ 2112

• Now we unscrew the drain plug of the VAZ 2112 cylinder block. This is done using a 13mm socket and a ratchet or other convenient wrench.
• After this, very little liquid will drain. Now unscrew the expansion tank cap to drain all the fluid from the block. You can do this in advance.
• Next, you need to unscrew the drain plug from the cooling radiator. You don't need any tools for this - it can be easily unscrewed by hand.

Radiator drain plug

• After all the liquid has drained from the block and radiator, you need to screw back the two plugs.
• Reinstall the ignition module with bracket.

This is where the drain ended.

Flushing the cooling system

Often, replacing antifreeze on a VAZ 2112 can be done without flushing the system. You don’t have to do it, in principle, but consider the option of washing.

Note. To flush the engine cooling system, you can use a special flushing liquid, or you can use ordinary distilled water.

Flushing the cooling system

So:

• To flush the engine, pour the required amount of distilled water or a specially prepared flushing solution with water into the engine.
• After this, start the engine and give it time to run. About 10 minutes.
• Then drain the water and repeat the procedure.
• You can rinse until the water becomes clear when drained. But considering that often washing is not done at all, two times will be enough.

Pouring antifreeze

After draining the antifreeze and flushing the cooling system, it is necessary to fill in new antifreeze. It will require about 8 liters.

It’s more convenient to pour antifreeze with a watering can

So:

• We insert a watering can into the hole in the expansion tank for convenience.
• We fill the antifreeze gradually so that the air leaves the system.
• To completely fill the system, squeeze the upper pipe coming out of the radiator.
• After filling the system, pour about half into the expansion tank.

Advice! Under no circumstances fill the expansion tank full! Antifreeze will simply pour out of there!

Eliminating airiness

If you do not perform some operations, the cooling system of your VAZ 2112 will be air-filled and will not work correctly. To eliminate this defect, do the following:

• Again, during pouring, squeeze the pipe so that air comes out.
• After filling, it is necessary to create pressure in the expansion tank. In simple terms, just blow into the expansion tank. Not just of course, but pressed against it so that air does not escape through the filler neck.
• In this primitive way, pressure can be created and air will leave the system.
• A sign that there is no air left in the system is the release of antifreeze, not air, from the return line.
• Also, after starting the engine, you need to “give” the engine good speed - this also helps.

These are some simple ways to get air out of the cooling system.

Preparing for replacement

Replacing antifreeze with your own hands begins as usual with choosing a tool:

• Heads “10” and “13” with ratchet and extension
• Phillips screwdriver
• If you have an engine from the 2111 model, then you need to remove the ignition module using keys “13” and “17”
• Empty container (bucket) for draining liquid
• Rags

What to consider

• When starting to replace the fluid in your car’s engine, just keep the engine cool and the temperature of the VAZ 2110 16 valve coolant can reach 100 degrees, otherwise you will definitely get burned and scalded
• Coolant (except water of course) is a chemical substance (very poisonous), it can harm your body and the environment, so do not taste it, do not inhale the fumes, do not get it into your eyes or skin
• It is recommended to change antifreeze slowly and wear rubber gloves.
• Do not pour antifreeze onto the ground, protect the environment
• If you have topped up antifreeze, do not start the car until you have screwed the expansion tank cap back into place.