How to flush the cooling system on a VAZ 2110

The presence of malfunctions in the cooling system can lead to serious consequences, including the need to replace the power unit. Today we will talk about how to flush the engine cooling system on a VAZ 2110, when this is done, how and with what means. All this and more in our material.

How to wash the cooling system of a VAZ 2110 engine

Flushing the engine cooling system is divided into two types:

External – the outside is cleaned from dust, insects, and other dirt. Using water or car shampoo.
Internal – the inside is cleaned from accumulated scale, rust or any accumulated debris. Here the cleaning takes longer and requires force.

You can also flush the system in several ways:

On one's own.
Or in the workshop.

If you prefer to just pay money, then it will not be difficult to contact a specialist in any workshop where they will do everything for you. But how carefully and efficiently the master will do it is unknown. Therefore, if you do it yourself, you will not only save money, but also do the job efficiently, which not every master can guarantee.

The main reason for system contamination is the use of simple running water as a coolant. And it becomes polluted for the simple reason that water contains too many impurities in its composition. Therefore, it is recommended to use a special washer fluid; you should not save money on this.

Expert advice

The operation of the VAZ-2110 cooling system depends not only on timely flushing, but also on other equally important characteristics. Specialists involved in the repair and restoration of cars of various classes and brands recommend following the following operating requirements:

Don't skimp on the quality of antifreeze. Antifreeze, which is most often poured into the VAZ-2110, reduces the period of active operation of the car. If it breaks, repairs will cost much more.
Make it a rule to carry out flushing as planned - once a year is enough, 2 times a year is ideal.
Monitor the condition of the cooling solution and change it completely.
If your gut feeling tells you that it’s time to wash the parts, don’t delay it. Taking good care of your car will eliminate many problems and prevent new ones.

Means for flushing the cooling system on the VAZ 2110

For washing, you can use various means, including those that can be found in any home.

Let's look at them and clarify the effectiveness of each product:

First up is distilled water.

First, drain the old coolant. Next, pour distilled water into the system. We start the engine. We let him work for 10-15 minutes and turn off the engine. And drain the distilled water from the system. The function will need to be repeated until the water becomes clear.

What may make this method so popular is most likely its ease of use. After all, you don’t need to put in much effort. Unfortunately, heavy stains cannot be removed this way. And besides, scale can form on the walls.

Acid, vinegar and soda

A solution should be prepared for washing. It includes: caustic soda, lactic acid, vinegar. The most important thing about this is that you should not add very large amounts of lactic acid, as it destroys the rubber parts of the cooling system.

The resulting mixture is added to the cooling system. Then you should keep the mixture inside for about 6 hours, but no more than 8. During this time, periodically start the engine so that it runs for a while. Then drain the solution. Fill with distilled water and carry out the same procedure as above. We carry out a couple of cycles of such actions, this will be quite enough. Then fill in a new portion of antifreeze.

In the provided method, there is a threat to the person himself. And also for the internal components of the system. In this method, protective devices should be used.

There are also special cleaning products

The most popular among these agents are acidic and alkaline agents. Since they guarantee high efficiency of their use. Also, two-component products include alkali and acid. But they are in separate containers. Therefore, you need to fill them one by one. There is excellent efficiency in their use. Well, neutral products simply do not contain potent components. Therefore, they are used only for prevention, since you cannot achieve effective cleaning from them.

All methods have the highest efficiency when used in the field of flushing the cooling system. The components in their composition cope quite well with any contaminants in the system. Their only drawback is the cost.

In order for the system in your car to work efficiently and without interruptions, you should learn not only how to clean it, but also follow the recommendations, thanks to which you will not need to clean the system at all. Perhaps, only sometimes. And then only for preventive purposes.

Just follow these recommendations:

Only high-quality antifreeze should be poured into the system. Many people like to use antifreeze because of its low cost. That is why there is low efficiency and short service life. The main rule is never save, because later, due to a breakdown, you will have to pay many times more.
For preventive purposes, washing is required once a year. But if you use the car constantly, then washing should be done twice a year.
It is imperative to monitor the condition of the water to see if everything is good in the cooling system. If you don’t notice anything and don’t change the water, this will lead to rather bad results.
Also, if in some case you need washing, then you should not waste time, effort and money on it.
Do proper flushing, this will allow your car to work much better, which will also get rid of many problems with a dirty cooling system.

Also follow the above rules, and you will not risk your car and funds. After all, it’s not difficult at all.

What is not recommended for flushing the cooling system?

Among the so-called folk remedies, there are a number of those that are not recommended for use, despite the fact that some car owners still use them, and in some cases they even help. Let's give a few examples.

Coca-Cola

Using Coca-Cola as a Cleaner

Some motorists use Coca-Cola to flush the cooling system of oil, emulsion, scale and rust. The fact is that it contains orthophosphoric acid, with which you can easily get rid of the mentioned contaminants. However, in addition to acid, this liquid contains large amounts of sugar and carbon dioxide, which can lead to certain problems.

If you decide to use Cola as a cleaning liquid, it is better to first release carbon dioxide from it so that during the expansion process it does not harm individual engine components. As for sugar, after using the liquid, you must thoroughly rinse the cooling system with plain water.

Also remember that phosphoric acid can harm plastic, rubber and aluminum parts of the cooling system. Therefore, “Cola” can be kept in the system for no longer than 10 minutes!

Fairy

Some car enthusiasts use the popular household grease cleaner Fairy or its analogues to flush the cooling system of oil. However, its use is associated with a number of problems. Firstly, its composition is designed to combat dietary fat, and it simply cannot cope with motor oil. And even if you try to pour it into the radiator, you will have to fill and “boil” the engine several dozen times.

Therefore, we DO NOT recommend that you use household grease removers like Fairy and similar products.

Calgon and its analogues

Calgon, Tiret and similar products are not recommended for cleaning radiators, since their intended purpose is to remove limescale deposits on water pipes.

"White"

The peculiarity of “Belizna” is that it contains sodium hypochlorite, which corrodes aluminum. And the higher the temperature of the liquid and the working surface, the faster corrosion occurs (according to the exponential law). Therefore, under no circumstances should you pour various stain removers into the system, especially those containing bleach and compounds based on it (including “Mr. Muscle”).

"Mole"

Known in narrow circles, “Mole” is made on the basis of caustic soda. Accordingly, they cannot be used to treat aluminum radiators and other surfaces. It is only suitable for cleaning copper radiators (in particular, stove radiators) and only by removing it and running such a cleaner through the system will you kill all the rubber seals and seals.

Other mixtures

Some car enthusiasts use a mixture of citric acid (25%), soda (50%) and vinegar (25%) for cleaning. However, we do not recommend that you do the same, since it is very rough and corrodes rubber and plastic parts.

These cleaning agents are only permissible if you need to flush the stove radiator and you do not plan to circulate liquid throughout the cooling system.

How to clean the cooling system with citric acid

If we talk about the washing procedure itself, then you should prepare water, citric acid, and also reserve time. The process is not complicated, however, it may well be labor-intensive.

Please note that to prepare the rinse, you need to use distilled water, not running water. As a last resort, ordinary tap water needs to be boiled well, and only then mixed with acid and poured into the cooling system. To effectively mix water and acid, you need to take about 0.5 liters of water in a separate container, then this water should be boiled

After the water begins to boil, add citric acid. This allows the acid to dissolve well. Next, the resulting solution is cooled. After this, you can pour the prepared solution into the main volume of water, then mix again. Next, antifreeze or antifreeze can be drained from the cooling system, assessing the degree of contamination and condition by appearance (color, smell, impurities, etc.). If antifreeze or antifreeze is very dirty, then the water-acid solution should be saturated (about 80 g of acid per 5 liters of water). If the antifreeze is relatively pure, then 40-50g will be enough.

Now, instead of antifreeze, flushing is poured into the expansion tank, the engine needs to be started and warmed up to operating temperatures at idle (until the thermostat opens and the cooling fan turns on).
Usually, the engine runs for about 10-15 minutes to clean it, and you can also idle it further. When finished, the engine must be turned off.
After the internal combustion engine has cooled slightly (15-20 minutes), the solution can be drained. At the same time, its color, condition, etc. should be assessed. If dirt is visible, then the flushing procedure must be repeated by pouring a fresh portion of cleaner into the system.
A sign that the system has been cleaned will be a clean flush that is drained. Next, you should rinse the system 2-4 more times with distilled water, but without acid. Now you can add fresh antifreeze or antifreeze.

How to properly rinse with special products

Good auto chemicals do not harm the engine and effectively remove contaminants. They come in three types: acidic, alkaline and two-component. To flush the system with a special solution, it is desirable to have distilled water. It is to this that a specialized additive from Hi-Gear or another manufacturer is added. After this, the engine is left to idle for about 10 minutes and the spent solution is drained.

What to do:

Remove the expansion tank plug.

The plug is removed from the expansion tank

There is a hole in the cylinder block for draining antifreeze

What's in it?

So, you purchased a car and don’t know what exactly is in the cooling system. If there is water or already used coolant there, this does not bode well for your engine.

Therefore, first of all, check whether there is any coolant in the engine at all, and what exactly it is. At the same time, make sure there are no leaks from the pipes or radiator.

It is not difficult to independently determine the type of fluid used by the old owner.

Antifreeze almost always has a blue or blue color.
Antifreeze is mainly available in red or green. Moreover, there are a huge variety of shades of red.
It is not difficult to distinguish water from blue or green liquid.
If the color of the coolant has a characteristic shade of rust, then this indicates the need for urgent replacement.

Green antifreeze

Mixing different coolants. Yes or no?

In some cases, the quality of the fluid is good enough that it is not necessary to replace it. Only the quantity is somewhat below the required level.

Let's say you have antifreeze filled, but you only have antifreeze on hand. What to do in such a situation? Many VAZ 2114 owners are interested in whether it is possible to mix different compounds.

Antifreeze or antifreeze

There is no consensus on this matter. Let us say for sure that a disaster will not occur from mixing, antifreeze and antifreeze will not react and will not explode the car. But we definitely cannot recommend combining two types of coolant in one tank. Follow the instructions in your car's manual, fill in what the factory recommends, and then you won't have any problems.

Antifreeze is simply a type of antifreeze developed in Soviet times for Zhiguli cars. This was done due to the low quality of the antifreeze offered at that time. Since then, antifreeze is the number one choice for VAZ.

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.

Various ways to flush the radiator without removing it

You can flush the radiator with various liquids. And the only tool the car owner will need is an open-end wrench to unscrew the drain plug in the cooling system. The washing sequence itself differs only in the type of liquid used and consists of the following steps:

The car engine starts, idles for 10 minutes, then turns off and allows to cool for 20 minutes.
The drain plug is unscrewed. The old antifreeze is drained. In its place, flushing liquid is poured.
The engine starts again and runs for 10–15 minutes.
After the engine has cooled, the liquid is drained. Distilled water is poured in its place to remove any remaining detergent from the radiator.
New antifreeze is poured into the system.

Washing with special means

In any auto parts store you can find special compounds for flushing automobile cooling systems. There are many of them, but the most popular among car enthusiasts are two liquids: LAVR and Motorresurs.

They have an optimal price-quality ratio. The washing sequence is shown above.

Washing with citric acid

Acid dissolves scale well. To create an acidic environment in the radiator, drivers successfully use a solution of citric acid in water.

Here are the main features of the process:

the solution is prepared in the proportion of 1 kilogram of acid per 10-liter bucket of water

If the radiator is not too clogged, the acid content can be reduced to 700 grams; flushing is carried out according to the scheme given above, with the exception of one important point: the hot acid solution is not drained from the system immediately, but after about an hour. This allows you to achieve the best effect

Video: flushing the radiator with citric acid

About rinsing with distilled water

Distilled water is very rarely used as a standalone detergent. This is done only when the radiator is slightly dirty. The reason is simple: water does not dissolve scale. It only flushes out the debris and dirt that has accumulated in the radiator. It is for this reason that distilled water is usually used only for flushing the radiator after the main detergent.

Coca-Cola Rinse

Coca-Cola has many unusual uses. These include flushing the radiator.

Once in the cooling system and warmed up, the drink quickly dissolves even a very thick layer of scale. But there are two important points:

The operating time of the motor when washing should be no more than 3 minutes. Then the engine is turned off, and the drink is drained from the system only after half an hour;
It is necessary to rinse the system with water after Coca-Cola very carefully. The drink contains a lot of sugar. And it can settle on the radiator pipes.

Traditional means for washing

Citric acid is one of the most popular cleaning agents

It is important to prepare its solution correctly, in which case it will not harm the rubber components of the system and at the same time will thoroughly wash it. To do this, take 100 grams of acidic lemon powder and dilute it with a liter of warm water

In order not to harm the system, it is optimal to do the flushing in several stages. This will avoid chipping off massive pieces of scale. If there is no acid, you can replace it with dairy products - whey. It is believed that such a product is even more gentle on parts of the cooling system that are not made of metal.

Another type of cleaning products can be found in the refrigerator of almost any family. This is the favorite drink of many, Coca Cola. Thanks to the presence of orthophosphoric acid in it, almost any scale can be removed. However, this acid is known to damage soft rubber components.

In addition, the drink contains sugar, which clogs the system. This is why, after rinsing with cola, you need to run distilled water through the system to help dissolve and remove the sugar. Another tip - before using cola, you need to release the gas from the bottle. The expansion of such gas while the engine is running can lead to undesirable consequences.

Caustic soda effectively softens scale deposited on the walls of pipelines and inside the radiator. However, it requires careful adherence to proportions, and it is undesirable to abuse this powder. We take a 5% solution of such soda and dissolve 50–60 grams in a liter of heated water. It is advisable to let the engine run for several hours. After this, the soda solution is removed from the system.

Washing with dismantling

Complete dismantling of the heat exchanger is a troublesome and time-consuming task, but this method makes it possible to clean it not only from the inside, but also from the outside. This method is also better because it can be diagnosed in case of leaks, which can be eliminated by argon welding.

If you still decide to dismantle it, then to gain access to the stove you will have to unscrew the dashboard.

This disassembly is similar to what is required to remove the evaporator when cleaning the air conditioner.

After removing the torpedo you need to:

Disconnect the pipes leading to the heating unit. In some brands of cars, the heating unit contains an evaporator of the air conditioning system, which means that in order to dismantle the stove, these pipes will also have to be disconnected.
Carefully unscrew the heating unit and remove it from the interior.

Flushing the stove radiator in this way is made several times easier, because it can be done at home, under hot running water. And even if the chemical ingredients do not help, you can solder the heat exchanger and clean it manually using a brush or similar improvised means in the form of a drill with a long drill bit.

Stages of replacing coolant VAZ 2106

On most classic Lada cars, drainage is provided from the radiator, as well as the engine. But before adding new antifreeze, it is recommended to flush the cooling system to prevent impurities from getting into the new liquid.

During the production of the VAZ 2106, a large number of modifications were produced, which were equipped with various engines. But at the moment the most popular are petrol versions with a 1.6-liter carburetor.

Before you start replacing the coolant, to avoid getting burned, you need to wait until the engine has completely cooled down. You should also avoid getting antifreeze or antifreeze on the skin, eyes or digestive organs, since the chemical composition of the liquids is toxic.

Coolant drain

Before starting the draining procedure, you should prepare tools, containers for used antifreeze, as well as new liquids for subsequent refilling. If protection is installed under the engine, it can also be removed for convenience.

Next, we perform the procedure for draining the liquid from the VAZ 2106:

Turn the temperature regulator in the cabin to the maximum position to the right (Fig. 1).

Fig. 1 Temperature control Find the plug in the bottom left corner of the radiator and unscrew it, after placing a drain container under the radiator. (Fig.2). On older versions, this plug is not present; a fan switch sensor is installed there. To drain the antifreeze, you need to unscrew it; this can be done with a 30mm wrench.

Fig. 2 Radiator drain plug After this, unscrew the plug on the radiator filler neck, as well as on the expansion tank, to drain the liquid more quickly (Fig. 3).

Fig. 3 Caps on the filler necks Unfasten the fastening of the expansion tank and lift it up (Fig. 4). In this case, the liquid will drain through the radiator drain hole. And the tank itself can be completely removed and washed.

Fig.4 Fastening the tank To drain the coolant from the engine, you need to unscrew the drain bolt using a 13mm wrench. The bolt itself is located on the left side; you can place a watering can under it to reduce splashing of the liquid (Fig. 5).

Fig.5 Drain bolt on the engine block

Flushing the cooling system

If there are deposits in the drained liquid or there is a transition from antifreeze to antifreeze, the system should be flushed. To do this you need to do the following:

Flush the system with plain water through the expansion tank of the VAZ 2106. The plugs must be open;
tighten the drain plug and bolt;
fill the system with a flushing agent (you can use Liqui Moly Kuhlerreiniger or Lavr cooling system flush) with distilled water (6-7 liters);
start the engine. Warm up to 90 degrees;
leave it idling for 5-10 minutes, depending on the contamination of the system;
muffle it. Allow the engine to cool to approximately 60 degrees;
drain the flush using the same steps as removing the old fluid;
tighten both plugs;
fill with distilled water to rinse the cooling system;
start the car and warm up to 90 degrees;
turn off and let cool to 60 degrees, drain;
repeat steps 8, 9, 10 and 11 if necessary.

Filling without air pockets

To fill new fluid into the cooling system, you can use the instructions described in the book on car repair and operation. But when doing this, motorists very often end up with air jams.

So, let's start filling it correctly:

First you need to remove the rubber hose from the fitting above the intake manifold (Fig. 6).

Fig.6 Rubber hose

The drain plug on the radiator should be closed and the drain plug on the engine block should be open. We begin to pour antifreeze into the radiator. As soon as it flows from the hole on the block, screw the bolt into place. We continue to fill in the antifreeze until it flows out from the place indicated in Figure 6. After this, we put the hose in place. Now fill the radiator to the top of the neck and screw on the cap. Fill the expansion tank a few centimeters above the MIN mark. We start the car, warm it up to operating temperature, let it run for 5 minutes, then turn it off.

Thus, the filling of coolant without the formation of air pockets is completed. All that remains is to wipe off the spilled antifreeze and wait for the engine to cool. With the car now cooled down, check the level in the expansion tank again and top up if necessary.

Air lock: what is it and how to remove it

An air lock may appear in the cooling system - usually this is the result of incorrect actions to replace antifreeze. To remove this interference you will need a screwdriver.

An air lock can quickly cause the engine to overheat. It can occur not only when replacing the coolant, but also when the system is depressurized (the hose is poorly fitted, the clamp is not secured).

This trouble is eliminated as follows:

Remove the expansion tank plug.
Locate the antifreeze inlet and outlet hoses.
Apply several sharp pressures to the hoses. The air should come out.
Close the expansion tank and start the engine.

Nuances of flushing work on a VAZ (video)

For a car older than three years, flushing the cooling system may be mandatory. It is also better to deal with it after purchasing a used car second-hand, since it is unknown what the previous owner poured into the radiator and expansion tank.

Source

What can I use to wash it with?

There is now a wide range of cleaning products available. The most accessible of these is water. However, it is also the least suitable remedy. Due to the salts present in the water in a dissolved state, scale may form after washing, which in the future will cause contamination and repeated cleaning. For this reason, you should use only distilled or, as a last resort, boiled water.

Special cleaning fluids

The range of cleaning liquids of various compositions and concentrations is quite extensive. Most of them allow you to efficiently clean the engine cooling system. But the choice of product should also be taken seriously, since different types of dirt require substances of different compositions to remove.

Cleaning products can be divided into 4 categories:

Neutral - do not contain aggressive components, are less effective in cleaning the cooling system than other liquids, and are most often used for preventive purposes.
Acidic - almost never found in pure form due to their extreme aggressiveness to system parts. Acidic flushing fluids are well suited for neutralizing scale and inorganic deposits.
Alkaline - like the previous category of substances, are not found in an undiluted state. Effectively removes organic contaminants.
Two-component - contain both acid and alkali. They are consistently poured into the system and thoroughly clean it of all types of contamination.

Coolant racks

It is better not to use two different products at the same time, since the acid and alkali are neutralized during interaction, which may not only not bring the expected result, but also cause a malfunction. You should also not use substances with high concentrations of acids or alkalis, as they can damage rubber and plastic parts.

Lemon acid

One of the popular “improvised” cleaning agents is a solution of citric acid. If the correct proportions are observed, it copes well with scale inside the radiator and does not damage rubber components. The optimal ratio is 100 g of acid per 1 liter of water.

Citric acid can be replaced with whey. It contains a concentration of lactic acid sufficient for effective and gentle cleaning. Also, flushing with serum is more gentle on non-metallic parts of the radiator.

As is the case with compositions specifically designed for cleaning, it is better to carry out the process itself in several short steps - this will help to avoid breaking off large pieces of scale.

Cleaning OS with serum

"Coca-Cola" and the consequences of such washing

Another common cleaning product. The orthophosphoric acid contained in the drink effectively removes scale from internal parts

However, this product should be used with caution, because in addition to the aforementioned acid, Coca-Cola also contains sugar, which can clog the system. Therefore, after using Coca-Cola, it is necessary to re-clean the system with water to remove any remaining sugar.

The concentration of phosphoric acid has a negative effect on rubber and parts.

Another disadvantage of Coca-Cola as a cleaning liquid is its gas content. Gas expansion due to heating during engine operation can lead to negative consequences for the vehicle. Therefore, if you nevertheless decide to use Coca-Cola as a cleaning liquid or do not have the opportunity to use more suitable substances, you need to get rid of the gas it contains.

Coca-Cola for flushing the cooling system

Keeping the engine cooling system clean is one of the important factors in the health of the car. For this, a wide range of specialized cleaning liquids are available, which, if chosen correctly, will help maintain the optimal condition of this system, as well as all sorts of available alternatives.

But when using the latter, you should be careful and resort to them in the absence of more suitable substances

Causes of pollution

Not every motorist understands the importance of such a procedure as flushing the cooling system:

Often, car enthusiasts limit themselves to adding or replacing antifreeze, but are very surprised when it turns black after a week
And the reason is simple - a dirty radiator
The engine cooling system is designed so that contaminants appear not only from the outside (such as dust, sand or insects)
But also from the inside (for example: scale, rust, motor oil, as well as sediment from the gradual decomposition of antifreeze)
A radiator clogged with dirt is no longer able to cope with its main task - cooling the engine; excessive contamination can lead to damage to the radiator and its replacement, and accordingly the cost of repairs will increase!

Methods to prevent contamination of the cooling system

Remember in what cases do you replace antifreeze? I am sure that few people pay attention to the service life of a liquid. This is precisely the main mistake of most car enthusiasts.

A driver who is far from chemistry does not think about the poor quality processes that befall antifreeze when its expiration date expires. We simply add fluid to the expansion tank as needed, without even remembering the need to replace it, as required by the manufacturer. Believe me, if your cooling system works on this principle, sooner or later certain problems will appear, it’s only a matter of time. Engine overheating is the worst consequence of such treatment of the car. To prevent this:

Pay attention to the color of the antifreeze when draining it. A dark shade indicates that the system is dirty. Do not overuse partial addition of coolant; it is better to completely replace it. Do not use one portion of antifreeze for more than two years.

When is flushing needed?

I give examples when washing is necessary:

A sure sign that the cooling system needs to be flushed is the darkening of the coolant, it becomes black or orange from rust, this is noticeable in the fluid reservoir and if you remove the cap on the radiator.
Problems arise with cooling the engine, even if all the blame is placed on the thermostat, flushing still won’t hurt.
When preparing the car for the transition to the summer or winter season (that is, approximately every six months)
When replacing one coolant with another, flushing is also necessary, just as when changing oil, the lubrication system is flushed of oil (old used oil).
The heater in the car doesn't heat up. Yes, it also heats up from the cooling system, and if it doesn’t work, it means part of the system is clogged!

Detailed replacement instructions

Next, we present the sequence of operations with a detailed photo report:

We carry out the replacement on a well-warm-up engine.
It is advisable to drive the car onto a lift or inspection ditch
Open the filler cap

Remove the filler plug

This will help prevent the formation of a vacuum in the engine housing and thereby ensure the most complete drainage of oil
Take the key 17 and unscrew the plug from the oil pan
We first substitute the container we prepared in advance

Take a 17mm wrench (or a 17mm socket with a wrench) and unscrew the plug from the pan

Draining used oil from the engine
We advise you to perform this operation carefully, the lubricant is hot and you can get burned.
When unscrewing, it is better to use a long wrench with a handle (or a socket with a long wrench) and let the plug simply fall into the working container.
Remove the cork after it has cooled down
The duration of oil draining into the container is at least 10 minutes or until the stream of oil disappears from the pan

If you decide to flush the engine, now is the time, if not, just skip this point:

Fish out and screw the plug back into the pan
Fill flushing oil through the filler neck to the minimum mark on the dipstick - level meter
Let the engine run for ten minutes, then drain the flush and proceed to replacing the filter
Take the oil filter wrench and unscrew the filter

Unscrew the filter using a special wrench

If you don't have such a key, use a strong screwdriver or awl
We punch the filter housing in a direction perpendicular to the fitting located inside the filter (we punch it away from the motor so as not to touch this fitting) and unscrew it by rotating the handle of the screwdriver used

We pierce the filter with a screwdriver (away from the motor and perpendicular to the fitting) and unscrew it, using the screwdriver as a lever

Let the oil drain completely from the fitting
Wipe the filter seat and around it with a rag
Before installing a new filter, fill it with fresh engine oil to approximately half capacity, and then lubricate the rubber O-ring of the new filter
This will protect the lubrication system from air entering when starting the engine and protect its parts from operating without lubrication.

Pour fresh oil through a funnel into the new filter to about half the volume, lubricate the rubber O-ring

The design of the cooling system on the VAZ 2110

The system of an 8-valve injector is very different from a 16-valve injector. On the 8-valve injector of the VAZ 2110, the system works with the help of cooling water that flows through this system.

Excess pressure occurs when the engine heats up, and then comes out through the exhaust valve. The 16-valve injector of the tenth system always contains the usual, normal temperature from 90 to 95 degrees Celsius, and the valve itself turns on at a pressure of 1.2 to 1.4 kgf/cm2.

VAZ 2110 engine cooling system: 1 – expansion tank plug; 2 – coolant level indicator sensor; 3 – expansion tank; 4 – outlet pipe; 5 – radiator outlet hose; 6 – radiator supply hose; 7 – steam removal hose; 8 – left radiator tank; 9 – sensor for turning on the electric fan; 10 – electric fan; 11 – electric fan impeller; 12 – radiator tubes; 13 – right radiator tank; 14 – radiator drain plug; 15 – electric fan casing; 16 – timing belt; 17 – toothed pulley of the coolant pump; 18 – coolant pump impeller; 19 – supply pipe of the coolant pump; 20 – hoses to the liquid chamber of the carburetor starting device; 21 – pipe for draining coolant from the heater radiator; 22 – hose for supplying fluid to the heater radiator; 23 – coolant temperature sensor; 24 – pump supply pipe hose; 25 – thermostat; 26 – filling hose.

With its increased pressure, the engine begins to return to its previous temperature, after which the intake valve is connected.

If there is a sudden failure to maintain the pressure, this can lead to overheating, which is what threatens the malfunction.

An electronic fan and thermostat maintain normal operating temperatures. Next, a signal is sent from the temperature sensor to the cooling system, and after that the system reduces the heating of the motor.

If the car has electric injection, then it has the ability to send a signal to the electrical control unit about overheating of the power unit. And during this time, with the support of the pump, liquid begins to succumb, which is distributed using the thermostat itself.

After connecting the motor, the thermostat needs to warm up to normal operating temperature. The thermostat drives the liquid through a small circle, and does not include circulation through the radiator.

Let's take a look at what the small circle actually includes:

To warm up the car interior - a heater.
Carburetor heating block.
Intake manifold.
And heating at the throttle unit.

If the engine has heated up to 90 degrees Celsius, then during this time the thermostat begins its work, driving a portion of the washing water to the radiator, and then when the sensor is triggered by engine overheating, all the liquid begins to spin in a larger circle.

Cleaning and flushing the radiator of the VAZ 2114/15 stove

You can increase the efficiency of the stove by cleaning and flushing the radiator. The procedure can be performed without dismantling the radiator or with dismantling it. In the first case, you will need to remove the outlet and inlet pipes from the heater and pour a cleaning solution into it. Citric acid, plumbing cleaners (for example, “Mole”), etc. are used as such a solution. Then the radiator is washed with running water and coolant is added. You can clean the radiator better by removing it from the car. This will allow you to wash it not only from the inside, but also from the outside, removing dirt between the honeycombs. Washing is usually carried out with running water.

If after performing these procedures the stove does not work better, the radiator must be replaced.

Video: flushing the stove radiator

Thus, diagnosing a malfunction and determining the cause of poor heating of the VAZ 2114/15 interior with your own hands is quite simple. Self-repair and replacement of individual elements of the heating system are also not very difficult. It is enough just to strictly follow the recommendations of specialists.

With the onset of cold weather, car owners often find that their car's interior heating system is not working efficiently. Everything seems to be fine, but the air coming from the deflectors is not warm enough. This problem may be an indication that the car’s heater core is clogged and cannot pass the required amount of heated coolant through it.

What to do in such a situation: replace the heater or try to repair it? Do not rush to resort to radical measures. If the heat exchanger does not leak, it can be repaired.

In this article we will talk about how to flush the heater radiator without removing it from the car. In addition, we will discuss which products are best suited for this procedure.

Why and when do you need to flush your car's cooling system?

The internal combustion engine cooling system must be flushed if it is clogged. CO includes a number of components that must work correctly and interact with each other. This will allow antifreeze to cool the hottest elements of the power unit. The most vulnerable component of the cooling system is the pipes. Over time, they become clogged and destroyed as a result of exposure to high loads.

While using the machine, sand, crushed stone, stones from the road, as well as insects can get into the engine compartment, which leads to the formation of dirt on the unit. As a result, some of the contaminants appear in the CO and mix with the consumables. This contributes to the formation of scale on the metal components of the system, which eventually peel off and get into the pipes. As a result, the lines begin to become clogged, and this contributes to a decrease in the efficiency of the CO; in some cases, its complete failure is possible.

Proper flushing will effectively remove contaminants from the lines. You can know when cleaning is necessary when the antifreeze indicator appears on the control panel. If the light comes on, this may indicate not only the lack of consumables, but also the presence of problems in the operation of the CO. Experts recommend performing the washing process at least every two years.