Replacing antifreeze with flushing VAZ 2112 16 valves

On a VAZ-2110, replacing antifreeze can be done with your own hands, without assistants. It is enough to have a minimum set of tools and a container for draining the old liquid.

First, let's find out why we need to replace coolant on a VAZ 2110 if we constantly monitor its level and regularly top it up to the mark on the expansion tank. But it's not that simple. It is important to know that antifreeze, after prolonged use in the cooling system, changes its properties.

If this is not critical in the summer, then in winter it can freeze and rupture both the radiator and the cylinder block. Long-term operation of the coolant is considered to be a mileage of more than 70 thousand kilometers or 4-5 years of operation. So let's get started.

• It is necessary to replace antifreeze only when the engine has cooled down.
• Coolant is an active chemical, so you need to be careful when changing it.
• Before starting the engine, make sure that the expansion tank cap is tightly closed.

Replacing antifreeze (antifreeze) on a VAZ-2112 16 valves with your own hands (+ video)

Replacing the coolant on a 16-valve VAZ-2112 is quite easy and simple. This does not require special knowledge. It is worth noting that the choice of coolant must be taken seriously, since using a liquid that has exhausted its service life can not only damage the power unit, but also lead to a major overhaul of the engine.

Video about completely replacing the coolant on a VAZ-2112:

Video materials will tell you about the process of replacing the coolant, the stages, and give tips and recommendations.

Why change antifreeze and how often to 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

The process of replacing coolant on a VAZ-2112

Before proceeding directly to the replacement process, it is necessary to select the appropriate tools. So, to complete the process you will need:

• Ratchet with 13mm head.
• The key is 17.
• Key for 10.
• Container for liquid.
• Funnel for the bay.

When the tools have been selected, you can proceed directly to the process. It is worth noting that replacing the coolant is carried out when the car has cooled down, so it is best to let it cool down after a trip for about an hour, depending on the ambient temperature. So, let's look directly at the replacement process itself:

1. Having placed the car on a pit or a lift, using a 10mm wrench we dismantle the engine protection.
2. Unscrew the cap of the expansion tank.

Unscrew the expansion tank cap. The photo shows the editor's car, this is what the coolant tank looks like, it's still original, the car is from 2003, the mileage is 170,000 km

To drain most of the fluid, unscrew the drain plug on the cylinder block.

To completely drain the liquid, remove the cap from the radiator.

This is how antifreeze will flow from the engine

Fill in new fluid through the knob

If necessary, you can change the thermostat and pipe clamps that are worn out.

Antifreeze or antifreeze

Antifreeze versus antifreeze - which is better?

Motorists often face the question of what is better antifreeze or antifreeze? Of course, in terms of technical and physico-chemical characteristics, antifreeze is inferior to antifreeze. The second one is better to use in winter, since it has many additives that have a lower freezing point and a higher boiling point.

Of course, the manufacturer recommends using antifreeze, since it is designed specifically for cars of the VAZ family. Of course, price plays a very important role, where antifreeze loses to its competitor. Therefore, in the end, we can say that both types of coolant can be used for VAZ.

Antifreeze

So:

• Antifreeze is produced using traditional technologies, which are already noticeably outdated.
• Such technologies allow the formation of a protective layer on the walls of cooling jackets up to 0.5 mm thick during operation. And considering the thickness of the shirts themselves, this is not so little!
• This very layer has low thermal conductivity, and therefore heat transfer. It turns out that the cooling system has to work longer at elevated temperatures.
• This leads to increased wear of unit parts, as well as increased gasoline consumption. Sediment can also cause the thermostat to jam.
• The advantage of antifreeze over other antifreezes is its price! It's much smaller!
• On the other hand, antifreeze is quite common in our area. It is widely used at technical stations. service by many masters.
• Taking into account the wear of engine parts and other possible breakdowns, we can say that antifreeze fully justifies itself as a coolant.
• Usually replaced after 30-40 thousand kilometers or 1 year of use of the car.

[custom_ads_shortcode1]

How the cooling system works

The principle of operation of the OS is based on the forced circulation of antifreeze, first through a small, then through a large circuit:

1. When the engine starts, the centrifugal pump is activated. It drives fluid flows through the system. When a VAZ 2112 pump breaks down, it cannot be disassembled; it is replaced with a new assembly.
2. Before starting to move, the engine runs at idle speed, gaining the required temperature. Antifreeze circulates in a small circle, covering the cooling jacket. When the working indicator is reached, the composition enters the large circle.
3. The process is controlled by a thermostat located on the cylinder block. It prevents the engine from overheating or, on the contrary, cooling down. If a unit fails, it is not disassembled, but replaced with a new one.
4. The main function lies with the radiator: it cools the antifreeze due to oncoming air flows. If this is not enough, the fan turns on. It is triggered by a temperature sensor located in the air filter.
5. An expansion tank equipped with a plug with two valves is responsible for replenishing the required level of antifreeze.

The tightness of the lid is a prerequisite for the operation of the entire system. The optimal pressure depends on the valves. When overheating, one releases steam, the second releases air when cooling.

Replacement features

If there are small leaks in the engine cooling system and the car owner periodically adds water or antifreeze from different manufacturers, the old coolant may take on a rusty color. Foreign bodies may appear in the form of small chips and rust, which, by the way, can lead to failure of the main elements of the cooling system, water pump, thermostat, heater tap, etc.

In this regard, when replacing old antifreeze in this condition, it is necessary to flush the system. This can be done using different additives, which is not always beneficial for the cooling system. Low-quality cleaning additives may not only not help, but also damage the components of the cooling system. Therefore, it is necessary to use high-quality additives and not skimp.

You can also flush the system naturally with distilled water. After draining the old antifreeze, water is added. The car idles for 10-15 minutes, then it is drained again and new antifreeze is added. If there is severe rust, you can repeat the procedure.

There is a cheaper and easier way; you can simply flush the system with plain water by opening the radiator and engine caps in sequence. Those. the engine cap is unscrewed and water is spilled through the expansion tank. Then the engine plug is closed and the radiator drain plug is opened. Do only in this sequence, since the radiator is at the lowest point and all the water will pour out.

Replacing coolant temperature sensors in a VAZ 2112

The temperature control device is one of the important elements of the cooling system. It changes the resistance depending on the heating temperature of the liquid, preventing overheating of the motor. When it fails, the liquid boils, then turns into steam and comes out of various openings in the system.

Problems with the sensor occur quite rarely; the cause of the breakdown may be a loss of contact in the internal part between the elements or a violation of the density of the external insulation of the wires.

Replacement of a faulty part is carried out only with a sensor suitable for the VAZ 2112 article

1. Remove the negative mark from the battery.
2. Drain the antifreeze.
3. Remove the air filter.
4. Remove the wires from the sensor.
5. Take out the old part from the pipe and replace it with a new one.

Reassemble the assembly in reverse order. The only equipment you need is a 14 key.

Necessary 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.

How much antifreeze in 2112 16 valves

To fully refill the cooling system on a VAZ 2112, you will need 7-8 liters of antifreeze; this volume is relevant for both 16 and 8 valve engines. Often, when replacing, no more than 6 liters enter the expansion barrel up to the maximum mark - this is an indicator that air has entered the system.

It is necessary to press all the pipes in several places, start the engine with the lid on the tank open and turn on the radiator that heats the interior.

The plugs will go away, and the fluid level will drop enough to add to the volume required by technical parameters.

Work quality control

After completing all the steps to replace the antifreeze, you can put back the terminal and plug of the expansion tank, and you can start the engine. Observe the behavior of the cooling system - whether there are any leaks in the pipes or connections. Does the thermostat open on time? A sure sign of proper replacement of antifreeze is the release of coolant from the return flow when the engine heats up. Place your hand on the heater radiator - if it is warm, then everything is done correctly. Keep an eye on the condition of your car, because it could even cost you your life! Share: No comments

During operation, the engine generates a huge amount of heat. In this regard, the design of the car includes a cooling system. It also provides interior heating in winter.

Owners often forget about its maintenance. This fluid is a consumable item and requires replacement periodically.

Recently, the issue of using imported products on Russian cars has been discussed very often (for example, replacing antifreeze with antifreeze in a VAZ-2110). Some say it is harmful. Others say that nothing better than antifreeze has yet been invented and antifreeze is a thing of the past.

Is it so? Let's try to figure it out.

[custom_ads_shortcode2]

What antifreeze to fill in VAZ 2107

Especially for domestically produced cars, a coolant composition (antifreeze) was developed that is capable of not freezing at abnormally low temperatures. The imported composition (antifreeze) has better technical characteristics; it benefits from additional anti-corrosion and lubricating additives, but does not lose its properties at -400C.

Antifreeze for VAZ 2112 is more preferable. From the factory the system is charged with Felix TC-40. Coolant comes in two types: G11 (blue or green) and G12 (red). Select in accordance with the color and factory markings indicated on the expansion tank cap. Do not mix two types of antifreeze. If it is blue, then you need to add the same one. But at the same time, after flushing the OS, you can refill it with both G11 and G12.

Russian-made antifreeze is available in three types, all of them suitable for the VAZ 2112 model:

• AK (concentrate);
• A40 – for cars of all generations;
• A65 is a preferred replacement for newer models; it contains anti-corrosion additives, antifreeze does not boil and does not form foam.

A universal option for replacing antifreeze for domestic cars

Antifreeze from foreign manufacturers is applicable for VAZ 2112 only class G12:

• Lukoil Ultra;
• Glaself;
• Chevron;
• Motorcraft;
• Energy;
• AWM;
• Freecor;
• Antifreeze Z40 AGA;
• Inugel Optimal MOTUL.

All the products listed above do not freeze down to -400C. In the northern regions, it is better to use AK concentrate as a replacement. It can withstand temperatures down to -650 C.

How much antifreeze is in a VAZ 2112 16 valves

The VAZ 2112 model has two antifreeze drains from the plug on the block and holes in the bottom of the radiator, so during replacement, almost all of the old liquid is removed. To refill you will need 7.5 liters. Antifreeze is sold in the form of a concentrate with a volume of 2-4 liters, it is diluted with distilled water, but its performance qualities are worse.

It is better to buy a 10 liter canister of a substance that is already ready for replacement. The remaining antifreeze in the manufacturer's container retains its technical characteristics for a long time. Coolant can later be used to top up the reservoir if its level drops.

It is also necessary to fill out correctly

Now that you know how to combine antifreeze with a VAZ-2110, you can talk about how to properly fill with fresh coolant. This process is much simpler than the previous one, but there are some nuances.

The main task facing a car owner who is pouring refrigerant into the system is to prevent air bubbles from appearing in it. No, they are not dangerous for the engine, but they are extremely undesirable, especially in winter, when the “furnace” operation is required. Plugs create obstacles to the normal circulation of refrigerant and, in addition, reduce its volume in the system. It turns out that we poured 6-7 liters, but the “oven” does not heat up, since it needs to warm up. And the troubleshooting begins.

But you just need to disconnect the hose from the throttle body when you fill the antifreeze and pour it until the coolant drains out of it. After this, we place the hose in the union and continue to fill the liquid to the level. When this is achieved, without closing the expansion tank cap, we start the engine, wait until it warms up to operating temperature and “pump” the hoses that enter the cooling radiator, periodically squeezing them with your hands. Air, if it exists, will definitely come out. You will only need to replenish the liquid.

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.

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.

How to change antifreeze on a VAZ 2112

Replacing the coolant in a VAZ 2112 with 16 or 8 valves does not differ in its technology from other modifications of the car. The process takes place in two stages: complete removal of old antifreeze and refilling with new one.

How to drain antifreeze from a VAZ 2112

The car is lifted with a lift or placed on a pit. You can drive it onto an overpass, but it will take time for the engine to cool down completely.

1. Remove the protection from the bottom.
2. Open the hood and disconnect the negative terminal from the battery.

3. Remove the lid from the tank; it can also be used to regulate the flow of waste liquid, making it smaller or larger, covering or closing the neck.

4. Unscrew the valve at the bottom of the radiator and place a container to drain the antifreeze.

5. Remove the plug on the drain hole of the block.

6. Allow the liquid to completely drain into the container.

After removing the antifreeze, the system is washed with water.

Where to fill antifreeze in VAZ 2112

Before replacing the antifreeze, return the radiator plug and drain hole to the unit.

Fill the system with a new compound through the neck of the expansion tank

1. Pour antifreeze in a thin stream.
2. While filling the system, press the pipes with your hands to remove any air pockets.
3. Fill the tank to the maximum level.
4. Close the lid and start the engine, let it run until it reaches operating temperature.
5. Increase the speed several times to the maximum.
6. When the engine has cooled down, check the level.

If everything went well, the level does not drop, then the required amount of antifreeze will enter the system.

Bay

Well, the last thing is pouring new antifreeze. Let's take a closer look:

• We insert a watering can into the neck of the expansion tank for convenience.

• Remove the return hose from the expansion tank. If necessary, use a screwdriver to remove the fastening clamp.
• We begin to pour antifreeze into the neck of the tank. You will have to pour about 8 liters of antifreeze into the cooling system.
• In the process of pouring antifreeze, it is necessary to eliminate airiness in the cooling system, otherwise the required amount of antifreeze simply will not fit there.
• This is done as follows. The first method is to squeeze the upper radiator pipe. As you know, air rises up and accumulates in the pipe. It must be squeezed out by pressing your hand.
• The second method is to create pressure in the engine cooling system. This is done by closing the outlet fitting of the expansion tank (from which the return line was removed) with your finger.
• Next, you need to press your face to the neck and block it, blowing air through your mouth.
• While performing this procedure, you will notice how air comes out of the return line. You are on the right track.
• Continue pouring antifreeze and blowing into the expansion tank until antifreeze flows out of the return line.
• Then install the return line in place.

Remember! Do not fill the antifreeze tank full - keep the level within the marks, and if there are none, then up to half the tank.

[custom_ads_shortcode1]

Tips for replacing coolant

In order to avoid mistakes during maintenance of the VAZ 2112 when replacing antifreeze, certain conditions must be observed:

1. Work is carried out only with a cold engine.
2. Protect exposed skin and hands from exposure to toxic substances, which include coolant.
3. Prevent antifreeze from getting on the surface of the generator.
4. To avoid getting a thermal burn, do not open the reservoir cap (it is under pressure) when the engine is running.
5. After draining the coolant, it is recommended to rinse the system with water until the latter is clear.
6. Fill the system with the required volume of antifreeze according to the technical specifications.

After replacement, check the system for the presence of air in it. Start the engine, allow it to warm up to operating temperature, and turn on the interior heater. Warm currents should flow from it. They test the surface of the pipes: if they are cold, then the system has plugs.

To get rid of them, the VAZ 2112 is placed on a slope (the front part is higher), the gear is switched to neutral and the gas pedal is pressed and released several times.

Engine starting

After all the operations performed, close the expansion tank cap, install the protection on the engine, put the negative terminal back on and start the engine. As the engine warms up, antifreeze should come out of the return line - this is a sign that the antifreeze has been replaced correctly. The engine must be warmed up until the radiator cooling fan turns on. After turning on the fan, place your hand against the heater radiator, next to the fan. The radiator will be warm if everything is done correctly.

The fan turns on - the temperature drops

If the radiator is cold, there may be two reasons for this - not all the air has left the system or a faulty thermostat. Also a good sign will be hot air from the heater in the cabin. One more thing - while warming up the engine, check the tightness of the entire cooling system. If leaks are detected, the pipes will need to be replaced.

Important – control the tightness of all connections

Replacement of antifreeze in VAZ 2112 has been completed. Bottom line - after you have checked everything and found no bad signs, you can safely close the hood and hit the road. Bon Voyage!

Source

Replacing coolant on VAZ 2110, VAZ 2111, VAZ 2112

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!

Summary:

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.”)

Helpful advice

When replacing antifreeze on a VAZ-2110 car, it is worth inspecting the condition of the pipes and hoses that go to the radiator and expansion tank. Characteristic signs of wear are:

• Cracks.
• Cuts.
• Low elasticity.

If the pipe is cracked and hard to the touch, then it needs to be replaced. The clamps are also changed. They can be bought at any hardware store. The hoses themselves that go to the tank must be reinforced, as in the photo below.

Conventional rubber products quickly become unusable or fray. If there are cracks on the tank itself, we also replace it with a new one. It would be a good idea to check the thermostat as well.

If it is stuck in one position, it should be replaced. You can check this by boiling the element in a saucepan on the stove. Why does this work need to be done when replacing the coolant?

Because during any operation related to the cooling system, you will have to drain the antifreeze again. And this is an additional waste of time and effort.

[custom_ads_shortcode2]