We independently change the coolant on a VAZ 2107

The engine cooling system is an important part of every car, through which the normal operation of the engine is ensured. A significant part of the cooling system is devoted to refrigerant or coolant, which can be presented in the form of antifreeze (in most cases), antifreeze or distilled water.

During the operation of any car, including the VAZ 2107, it is important to promptly replace the coolant, which will improve the efficiency of the cooling system. In this issue, we will look in more detail at how to correctly replace antifreeze on a VAZ 2107, what is required for this and where to start.

Instructions for replacing antifreeze

Antifreeze, compared to water, is quite resistant to frost - it does not freeze. It is also not a source of scale, which means it does not clog the cooling system.

But, subjected to constant temperature influences and fluctuations, antifreeze loses its properties during operation:

• the boiling point decreases and accordingly becomes equal to the boiling point of water;
• The fluid may freeze, resulting in a cracked reservoir or cracked cylinder block.

For these reasons, it is necessary to change antifreeze at least once every six months. It is important to do this during seasonal car maintenance. Timely replacement of coolant will help avoid unpleasant consequences, unwanted repairs and unnecessary waste of money.

So, replacing antifreeze on a VAZ 2107 includes draining the antifreeze, flushing the cooling system (if necessary) and replacing the used coolant with new antifreeze or antifreeze.

You should first prepare the following materials and tools:

• canister with new antifreeze (6 liters);
• funnel;
• wrench “13”;
• open-end wrench “16”;
• key “12”;
• an empty container of 6-10 liters (a cut canister is often used);
• a clean rag made from natural fabrics;
• Protect your hands with gloves.

Drain

Draining antifreeze from the VAZ 2107 tank includes the following sequence of actions:

• Place the car on the inspection hole so that the front wheels of the car are higher than the rear ones;
• Move the lever (located on the dashboard) that supplies warm air into the cabin as far as possible to the right;

• Open the hood and unscrew the expansion tank cap;

• Unscrew the central radiator cap;

• Using a 16mm open-end wrench, unscrew the drain plug located on the cylinder block. Place a container prepared in advance, as liquid will begin to pour out. It may take up to 10 minutes to completely drain the spent fluid;

• Using a “12” wrench, unscrew the plug on the radiator drain hole, located in its lower part. A special bucket or container is used for draining;

• Remove the belt holding the expansion tank by hand. You should raise the tank as high as possible, thus draining the remaining antifreeze from the hose connected to the tank;

• After completing the procedure for draining antifreeze or antifreeze, the tank is installed in place, all drain holes are then closed and the cooling system must be flushed.

Flushing

Flushing the cooling system is an important procedure. It determines how effectively the VAZ 2107 engine will be cooled. A number of car owners believe that flushing the cooling system is a waste of time, and immediately fill in new antifreeze or antifreeze after draining the used fluid. This causes clean and dirty fluid to mix, negatively affecting performance.

You can flush the cooling system using either water or special products.

Cleaning OS with water

Flushing the cooling system with water is only allowed if there is no flushing liquid. The fact is that ordinary water contains impurities that contribute to the formation of scale. If the choice is water, it is better to use distilled water.

Sequencing:

• Water is poured into the expansion tank of a VAZ 2107;

• Let the engine idle for 30 minutes;
• After half an hour has passed, the engine is turned off and the water is drained;

• Repeat the procedure until the water drained from the system is as clean as the water being poured in;
• Stop the procedure after clear water appears.

Cleaning the OS with a special agent

You can also flush the cooling system with a product containing special impurities. This is a more expensive way to clean the system, but in the long term the most appropriate option, since the product removes from the tank:

• fat deposits;
• dissolves and removes scale from the tank;
• organic compounds.

Today, VAZ 2107 car owners use flushing fluids, the two main components of which are acids and alkalis. Car owners prefer LAVR, which costs from 700 rubles.

The sequence of actions when flushing the cooling system with a special liquid is no different from flushing with water. The only significant difference is the operating time of the motor, which is indicated on the canister of liquid.

After flushing the radiator tubes of a VAZ 2107 with LAVR, the positive result is obvious.

Bay

After the actions have been taken, it is time to fill in new antifreeze (or antifreeze, if such a decision was made by the VAZ 2107 car owner).

How to replace antifreeze on a VAZ 2107 injector? Sequencing:

• Open the radiator cap and insert a funnel into it;
• The following actions are carried out with the help of a partner. The plug is removed from the cylinder block and antifreeze is slowly poured in. At the same time, tighten the bolt, and as soon as the antifreeze flows out of the BC, the bolt is tightened. Such a maneuver will help eliminate the creation of air jams;
• Pour antifreeze into the radiator until it is completely filled;
• Pour antifreeze into the expansion tank until it reaches the radiator. Then screw on the tank cap;
• The tank is the last to be filled. The level corresponds to the norm. Upon completion of all procedures, the lid is screwed on;
• Start the engine and warm it up to operating temperature to check the proper operation of the cooling system. The cooling fan should work and the temperature should drop, which means the system is in working order.

We recommend: Independent replacement of the vacuum booster on a VAZ 2114

This completes the replacement of antifreeze in the VAZ 2107 injector. There is no need for special knowledge or special equipment to perform this procedure. It is enough to have a set of tools and decide on a place.

You should also pay attention to the fact that antifreeze, like antifreeze, is a toxic substance. Consequently, a number of safety measures are observed when replacing coolant on a VAZ 2107:

• Do not dump antifreeze on the floor in the garage or on the ground in the yard. The liquid is poisonous and can harm the human respiratory system;
• Protect your skin and do not allow antifreeze to get on your hands or in your mouth. A number of motorists check the nature of the fluid used by dipping their finger into the reservoir. The consequences may be poisoning or burns;
• If antifreeze gets on your hands, face, eyes, or mouth, rinse with a stream of cold water and take the victim to a specialist, or call an ambulance. Antifreeze, like antifreeze, is first of all a liquid hazardous to health, and only then a necessary component for the proper operation of a VAZ 2107 car;
• Do not have a snack while working on replacing antifreeze in the VAZ 2107. In this way, you can swallow the evaporated toxic liquid;
• Wash your hands after completing the antifreeze replacement procedure. This is done several times with running water, after which the skin should be protected with a special cream (especially important if antifreeze gets on the skin of your hands).

By adhering to the described recommendations, the driver of a VAZ 2107 car will protect both himself and others from unpleasant consequences, poisoning, burns, etc.

Reasons for replacement

When replacing antifreeze on a VAZ 2110, you must adhere to several rules. The engine must be cold, antifreeze is a toxic liquid; when working with it, it is necessary to avoid contact with the eyes, mouth and prolonged contact with the skin.

Antifreeze, coolant (antifreeze) is a special composition of automotive fluid based on ethylene glycol. Used in the cooling system of an internal combustion engine (ICE) for operation at low ambient temperatures. There may be several reasons for replacing antifreeze:

• car mileage, 75,000 – 100,000 km. mileage;
• time interval 3 – 5 years (it is recommended to check the condition of the fluid at a car service every year before the start of the winter season with a special device);
• replacing one of the components of the cooling system, water pump, pipes, radiator, heater, etc., with such replacements, antifreeze is still drained from the cooling system and it makes sense to fill in a new one.

This material will help you understand the engine cooling system: https://vazweb.ru/desyatka/dvigatel/sistema-ohlazhdeniya-dvigatelya.html

Cooling system VAZ 2110

Features of antifreeze and antifreeze

Let's start with the fact that Tosol is a type of antifreeze developed in the USSR. But as often happens with us, the name has become a household word and many liquids for car cooling systems are called Antifreeze.

Antifreeze and antifreeze are based on ethylene glycol (less commonly propylene glycol), distilled water and various additives. And the main difference between them comes down to the additive package.

Antifreeze is made from equal parts of water and ethylene glycol using traditional technology, which includes additives based on salts of inorganic acids.

But antifreeze already includes carboxylate additives (from salts of organic acids).

Thanks to additives, these liquids have anti-cavitation, anti-foam and anti-corrosion properties.

But the traditional manufacturing technology that is used in the production of Antifreeze is already somewhat outdated due to additives. Additives made from salts of inorganic acids cease to perform their functions over time. Antifreeze has a longer additive life.

At the same time, the additives themselves work differently . The anti-corrosion additive in Antifreeze covers all metal elements of the system with a thin protective layer. But this same layer makes it difficult to remove heat.

In antifreeze, this layer is much thinner than that of Antifreeze, and at the same time it covers only those elements of the system that are susceptible to corrosion.

If you look at it in general, then in a debate - antifreeze or antifreeze for VAZ, in terms of its performance properties, antifreeze wins. But not everything is so simple and a lot depends on the VAZ model itself.

The fact is that most domestic cars are primarily designed to work with Antifreeze. It is the main liquid, although the operating instructions often indicate that antifreeze can also be used.

WHAT'S IN THE COOLING SYSTEM

Antifreeze or antifreeze is used to cool engines. Let's find out in more detail about these liquids, and what is better to use antifreeze or antifreeze on the VAZ 2114. This separate name for coolant is used only by drivers in Russia and CIS countries. At their core, they are the same chemical substance. However, there are still slight differences in these substances, which affect the operation and components of the engine.

Experts recommend pouring antifreeze into the cooling system of foreign cars, while antifreeze is more suitable for cars of the Russian automobile industry. Replacing antifreeze with antifreeze is possible, there will be no harm from it. You just need to thoroughly rinse the cooling system with distilled water. The question of which antifreeze is best to pour into a VAZ 2114 needs to be decided by the car owner himself.

A few words about the advantages of antifreeze over antifreeze:

• Higher cooling efficiency;
• Increased service life;
• More effective protection of aluminum parts at high temperatures;
• The pump resource increases;
• Higher ability to protect against cavitation in cylinders;
• Better compatibility when working with rubber, plastic and other materials of cooling system parts;
• Higher environmental friendliness in use.

When purchasing coolant, the buyer wants to know at what temperatures it is intended to operate. The consumer is informed about this by the marking on the coolant container. If there is an inscription “Antifreeze 65”, then this liquid can be used in conditions of ambient air temperature not lower than -65

0

C. You can also check the density of the liquid yourself with a hydrometer. It is allowed to add distilled water to the coolant during vehicle operation, since it is this that evaporates at high temperatures.

Why does it flow

There are many options for why coolant may leak. It is very difficult to determine this location of the leak. The main ones are:

1. View all pipes; perhaps one of the clamps is not clamped properly.
2. The pipe itself has cracked from time to time.
3. The cause of mechanical damage is in the radiator. This can be corrected by welding or gluing. You can determine the location of the leak in the radiator using dismantling or gel sealant.
4. Water pump. Over time, the pump, like any other part, can wear out and leak. In this case, the pump will have to be replaced.
5. The element leaks out from under the head. It is better to correct such a leak at a service center, since this will require disassembling the engine.
6. When the element leaks directly into the vehicle's cabin. This can be determined by lifting the floor mat on the driver or passenger side.

How to replace antifreeze on a VAZ 2107

Now it's time to fill in new antifreeze. To do this, open the radiator cap and insert a funnel there. Remove the plug from the cylinder block and ask your partner to pour in antifreeze in small portions. At this time, tighten the bolt, and as soon as antifreeze flows out of the BC, immediately tighten the bolt. This is necessary to prevent the creation of air jams. Then pour antifreeze into the radiator until it is completely filled. Next, without screwing the cap on the radiator, pour antifreeze into the expansion tank until it reaches the radiator. After this, screw on the tank cap.

Replacing the coolant: why is this event being carried out?

The cooling system of modern cars is presented in the form of a liquid-type system, which means heat is removed from the car engine through liquid. The coolant circulates through the system, removing heat from the engine and cooling in the radiator. The pump or water pump redirects the cooled portion of the liquid to the engine to cool the latter again. The heat exchange process occurs continuously while the car engine is running and the pump is rotating.

We recommend: How to remove the instrument panel on a VAZ-2114 in 12 steps? Features and detailed instructions

As the coolant is constantly exposed to different temperatures, it loses its properties over time. When antifreeze loses its properties, its boiling point decreases and approaches the boiling point of ordinary water. Most often this happens after a mileage not exceeding 60 thousand km. It is at this mileage that it is recommended to completely replace the antifreeze in order to avoid unforeseen and undesirable consequences. Before we begin the replacement, let’s find out how to properly drain antifreeze from a VAZ 2107.

How to properly drain used fluid

To drain antifreeze from a VAZ 2107 car, simply opening the tap is not enough, through which all the liquid will flow out of the system. Both antifreeze and antifreeze are toxic substances, so when working with them you should follow safety rules. Before draining, it is necessary to prepare a container into which the waste will be drained. The volume of such a container should not be less than 10 liters. The best option for such purposes is a trough or basin.

It is easy to carry out the work without an inspection hole, so it is recommended to install the car on the handbrake, and then place a trough or other container under the engine. We begin the process of draining the liquid, for which the following steps are performed:

• The first step is to open the hood, then unscrew the cap from the expansion tank. This is necessary in order to reduce the pressure in the system, thereby speeding up the process of draining the waste. It is also recommended to unscrew the cap on the radiator.
• It is necessary to open the heater tap from inside (move the lever to the “warm” position) in order for the coolant to drain from the heater radiator.
• The next step requires unscrewing the plug bolt, which is located at the bottom of the cylinder block.

• Now you can start unscrewing the drain plug. located on the radiator. After unscrewing it, drain all the used fluid into a container, which may take up to 10 minutes.
• At the next stage, you need to loosen the fastening of the expansion tank, and then lift the latter up to drain the remaining liquid from it. How much antifreeze will be in the system depends on how often the car owner added it there.

The capacity of the cooling system of VAZ-2107 cars is just over 8.5 liters, so you need to wait until the last drop flows out. While the antifreeze is draining, you can prepare a new canister that will be poured into the system.

It is important to know! It is strictly forbidden to start the car when there is no antifreeze in the system.

Features of filling coolant

During the process of replacing the coolant, you can perform the procedure of changing the sealant or clamps on the pipes if leaks were noticed earlier. To do this, it is necessary to remove the pipes, check their integrity, remove any old sealant, then apply a new one and put it back in place. If the pipes have obvious defects, then it is better to replace them immediately, so that after a while the new antifreeze does not end up under the car.

Before adding a new type of antifreeze, you should tighten the drain bolt on the cylinder block, as well as the lower plug on the radiator. Remember to complete these steps before you begin the pouring process. We recommend doing the filling as follows:

• Before filling, unscrew the sensor located between the spark plugs of the 3rd and 4th cylinders, slightly higher, from the cylinder block. This will prevent the formation of an air lock in the car's cooling system;
• now antifreeze is poured into the VAZ 2107 through the hole in the radiator until it flows out of the hole from the sensor in the block in an amount of about 5 liters;
• screw the sensor into place and continue pouring;
• It is necessary to pour until the radiator is completely filled. You can additionally move the pipes to release air from them;
• After filling the radiator, you need to close its cap and add coolant into the expansion tank to the range from “MIN” to “MAX”.

It is important to know! Replace the coolant on your car only when the engine is cool. Antifreeze is very toxic, so inhaling its vapors can affect your well-being.

On VAZ 2107 cars, the injector and carburetor differences in the cooling system are insignificant. The only difference is that the temperature control system sensor is installed on the injector and the throttle body is heated. The carburetor engine of the "seven" has a more simplified cooling system, but they work on the same principle. There is no difference in the coolant capacity of the cooling systems of carburetor and injection engines. Above is a video about how antifreeze is replaced on a “seven”.

Preparing to replace antifreeze

Before changing antifreeze, you need to drain the old one, and this is completely logical. In total, the tank contains approximately 7.8 liters of antifreeze. You can drain 7 liters without any problems. This means that for replacement you will need only 7 liters of fresh antifreeze.

Choosing antifreeze important features:

• It is best to buy antifreeze from one manufacturer. If there is a strong difference in composition, the mixture in the tank may not be very good. And this can damage the health of the car.
• You need to pay attention to the type of liquid. If it is a concentrate, then it will definitely need to be diluted.
• It is necessary to replace the coolant after the car has completely cooled down. And it will be possible to start the car only when everything is finally connected and checked for leaks. Otherwise all the problems will come out again.

Timing for replacing coolant in VAZ 2107

The purpose of the coolant in the VAZ 2107 is to remove excess heat from the car’s engine. Indeed, during operation, many parts of an internal combustion engine reach temperatures of 300 degrees C. If the engine is not cooled in time and sufficiently, it will fail. Coolant solves this problem; it is supplied to a running engine, flows through the channels, thus taking away excess heat from the internal combustion engine.

After heating, the coolant goes into the central radiator, which is constantly blown by the fan. After cooling in this unit, the liquid returns to the engine cooling channels. This is the procedure for continuous liquid cooling of the VAZ 2107 engine.

The general principle of operation of the VAZ 2107 cooling system can be studied using the diagram below.

How to understand what kind of coolant is required for a VAZ 2107 - antifreeze or antifreeze? Since we are talking about Russian cars, we should distinguish between concepts such as antifreeze and antifreeze to clarify concepts.

It should be noted that such division and differentiation is accepted only in the Russian Federation. To answer this question, you must first understand: what is coolant?

We recommend: How to make heated wipers with your own hands

So, the basis of the coolant is ethylene glycol, less often propylene glycol. Special additives are added to it, which protect against corrosion. Each manufacturer adds different types of additives.

Let us differentiate the coolants available on the modern market according to additive production technologies:

• traditional, in which additives are made from salts of inorganic acids: silicates, nitrites, amines, phosphates;
• carboxylate, additives are made from organic carbonates;
• hybrid, consists of a mixture of organic carbonate additives and inorganic salts (in smaller quantities, including phosphates or silicates).

So, the main difference between antifreeze and antifreeze is that coolant made using traditional technology is called antifreeze, while coolant made using carboxylate technology is called antifreeze.

Advantages and disadvantages of using antifreeze

Pros:

• protective film. Thanks to the inorganic salts contained in antifreeze, a protective film is created on the surface of the cooled parts, protecting them from corrosion. The film reaches 0.5 mm. In the picture below you can see how antifreeze creates a protective layer, the disadvantage is that it interferes with heat removal;

• color change. If the driver forgot to change the coolant, a clue to the need for the procedure will be the color of the liquid, which is easy to notice just by looking into the car's expansion tank. The changes are that as the antifreeze loses its useful properties it becomes darker, and completely unusable antifreeze cannot be distinguished from tar;
• affordable prices. Coolant produced using traditional technology is 3 times cheaper than antifreeze.

Disadvantages of antifreeze:

• replacement frequency. Antifreeze has a short lifespan, becoming unusable after 50 thousand kilometers;
• negative impact on aluminum parts. The additives used to create antifreeze negatively affect the aluminum surfaces in the main radiator (which significantly reduces its service life);
• due to the tendency to form condensation, it negatively affects the water pump of the VAZ 2107, as a result - premature wear of its impeller.

Let's look at the advantages and disadvantages of using antifreeze

Pros:

• service life is longer - 6 liters of antifreeze is enough for 150 thousand kilometers;
• temperature selectivity - due to the presence of carbonate additives, antifreeze more actively protects the engine surface that is heated the most;
• antifreeze does not interfere with heat dissipation, and also protects corrosion areas with the help of local layers;

• long engine operation due to temperature selectivity and timely engine cooling with antifreeze;
• there is no condensation, which means antifreeze cannot damage the radiator and water pump of the VAZ 2107.

The disadvantage of antifreeze is obvious - its high cost. In terms of price, it is on average 3 times higher than antifreeze.

Replacing fluid on a VAZ-2107

Carrying out all the work on this car is not that difficult. Tools you will need:

• Key to 13;
• Key for 30 (possibly);
• Screwdriver;
• Drain container;

You should also take care of purchasing new fluid. In this car, its quantity in the system should be 8.65 liters.

The work is carried out in the following order:

1. The car is placed on the platform and time is given to cool down (if the engine is warm);
2. Remove the caps from the radiator filler neck and expansion tank. Also in the cabin, on the heater control panel, we move the lever to heating, thereby opening the heater radiator tap;
3. Unscrew the drain plug at the bottom of the radiator. On older models there is no such plug, so on them the temperature sensor is unscrewed with a 30 key. There is also a drain plug on the engine, which we also remove. We collect the leaking liquid into a prepared container;
4. After draining, install all plugs in place;
5. We wash the system. To do this, distilled water or a special detergent is poured into it. In order to completely fill the system and displace the air, remove the pipe going to the intake manifold. As soon as water or liquid comes out of it, we put it in place;
6. We start the engine so that it flushes the system through circulation;
7. Drain the water through the plugs. Fill in new coolant. We start the motor for circulation. Then we are interested in the amount of liquid in the system and, if necessary, add it to the expansion tank to the required level.

Flushing

Many experts agree that the system should be flushed before replacing the coolant. But how to do this and is such an event really mandatory?

If the coolant being drained shows signs of rust and contamination, then the system should still be flushed. This preventive measure will never be superfluous. Therefore, try to allocate some of your precious time to the procedure. The engine will remain grateful to you.

Expansion tank

The cooling system is washed quite easily:

• Drain the old fluid by unscrewing the drain plug;
• Fill the system with water through the filler neck;
• Distilled or boiled water can be used as a washing composition. Plus, there are special cleaning compounds. They are more expensive, but their efficiency is higher;
• Start the engine with flushing water inside and let it idle for about 30 minutes;
• Drain;
• If it is very dirty, repeat the procedure;
• Add new coolant to the system.

Coolant functions

1. Maintaining normal temperature during engine operation (injector).
2. Maintaining low temperature in the gearbox (hydraulic fluid that needs to be poured into the automatic transmission).
3. Interior heating in winter. Pouring antifreeze provides heat to the car by passing through the heater. The motor heats the liquid, and the fan blows air and transfers heat. Thus, heated air enters the cabin.

Antifreeze in the VAZ 2107 should be replaced every 45,000 km. or once every two years, whichever comes first. Because over time the quality deteriorates and this leads to adverse consequences.

Radiator cap open