Preparations for washing the engine cooling system. Wash engine cooling system with their own hands. Cleaning radiator outside with special chemicals

Lubrication and cooling systems are essential components directly affecting the engine performance. In a serviceable car, the contours on which the oil and antifreeze circulate, sealed relative to each other and the fluid should not interact, and even more so mix.

If suddenly in the expansion tank, the presence of oil is found, then it is necessary to urgently conduct diagnostics and revealation of the receipt. As a rule, the lubricant can get into the circuit of the cooling system of two faults:

• Violation of the tightness between the head and the cylinder block due to the weakening of the fastening bolts, the integrity of the gasket between them, changes in the plane of the head or microcracks in the cylinder block. As a rule, the specified faults occur due to engine overheating.
• Diesels - due to disruption of tightness in the oil cooler.

In any case, when the signs of the presence of oil in the coolant is found, a competent car diagnosis and repair is needed. After the reason for mixing liquids is found and eliminated, it is necessary to remove the remains of the oil from the cooling system.

The fact is, an aggressive medium with increased acidity, which occurs when mixing antifreeze and oil will accelerately eliminate plastic and rubber parts (nozzles, gaskets, glands), and also contribute to the formation of corrosion foci and its development on metal details. Also, the oil can be in a clock and clog the channels in the cooling shirt of the cylinder block.

Just merge the contaminated coolant and pour a new one, it will be ineffective, oil residues can remain on the inner surfaces and again mix with antifreeze. To avoid the occurrence of such problems, the cooling system of the engine must be rinsed. This can be done by special chemicals in the car service or independently, or resorting to people's ways.

Cleaning the system with a special auto chemical

On the Russian market There are several effective cleaning products that can be used to flush the cooling system from oil residues:

• ABRO AB-505 is a lime scale, rust and oil sediments. The volume of 354 ml is poured into the cooling system filled with water. After heating the engine to operating temperature, It is necessary to give him to work in idle, for half an hour. Then, drown the engine. Further flushing the system is necessary on the engine head, with an open drain crane, constantly pouring water into the radiator or in expansion tank, Until the fluid being drained is transparent.
• Liqui Moly. Kuhlerreiniger.-Effective means containing enzymes and seals intended for dissolving and removing scale and contamination (including thick lubrication) from the cooling system and neutralizes acid. There are no aggressive alkalis and acids, so it can be applied to apply it for each replacement. It is neutral to rubber, metal and plastic. To clean, it is necessary to pour fluid into the system (one jar on 10 liters of antifreeze). Then warm the engine and give it to work at idle 10 to 30 minutes. A flooded fluid is allowed to leave in the system for a period of up to three hours, and the time of using the machine. After draining the old antifreeze, the system should be rinsed with running water and you can pour a new one.
• Lavr is a set for a two-step, full flushing. Specially designed to work with very complex pollution and consists of two bottles:
  1. Purifier Rust and scale (first stage) - Possible into an empty system, and then it is filled with clean, preferably distilled water, to a minimum level. Then you need to warm up the engine and leave it to work for half an hour.
  2. Cleaner oil-emulsion sediments and various residues of decomposition of old coolant (second stage). After draining the first solution, the liquid from the second bottle is poured into the system, and the system is replenished with water to a minimum mark. The car boils, heating and leave to work half an hour. Then the solution merges, the system is again filled with clean water, the engine warms up and leave it to work for 15 minutes. The last procedure should be repeated as long as the system does not begin to merge clean water and then you can fill in the antifreeze system.

If there has been a slight contamination of antifreeze with oil products, then other Washing fluids LAVR are classical (Classic), for commercial vehicles (Fortrucks) and synthetic (SynTetic) which are also designed to remove traces of oil.

In addition to the flushing listed, you can choose analogs and other manufacturers - Bizol, Pingo, CRC. All of them effectively dissolve various contaminants and do not damage the details and components included in the cooling system.

Wash engine cooling system by people

There are exotic and less civilized washing methods invented by folk crafts when special auto chemicals were not so available.

Instead of contaminated antifreeze, the serum is poured into the system, slightly above the minimum level in the expansion tank (up to 10 liters can be consumed). In time, how much to keep in the engine serum there is no one opinion. Someone travels with a filled serum 200-300 kilometers, then it is merged. Someone advises to pour her away, warm the engine and leave it to work in a half for a period of 5 minutes to one hour.

If the fusion fluid is very dirty and with oil bunches, then serum washing procedure can be repeated one of the above methods. After washing, you must shed the system with running water, pour clean water, once again warm the engine and give it to work for about 5 minutes. If the fluid is pure, then you can pour new antifreeze.

Carbonated drinks

Cola, sprite and yard contain orthophosphoric acid capable of dissolving almost anything. Mixing is produced in the following proportion - half of the volume of water or antifreeze and the remaining part is the drink. The engine is heated and allowed to work for five to six minutes. Then the engine is devoured, and leave to half an hour to estimate.

After draining the soda, it is necessary to produce a long washing of the system with water to wash out the remaining sugar.

Lemon acid

For purification, citric acid must be dissolved in water at the rate of 1 kg of powder per 10 liters of fluid. With a small contamination, the amount of acid can be reduced to 500 grams.

With a poured solution, with medium turns, the engine should work for 15-20 minutes, and then give it to settle approximately 45 minutes. After the drain, it is also necessary to rinse well with running water system.

Various household detergents for dishes are very well laundered fat and oil from any surfaces. To wash the cooling system, they are also used. Intellight of any means be added to the system, with severe contamination, you can pour a full half-liter bottle.

The liquid must be dissolved in water and pour into the cooling system. Heat the car and leave to work for 15 minutes. If the fluid plum contains a large amount of oil, you can repeat the procedure several times. Alternatively, with such a flooded solution, you can ride a car for a couple of days or about 100 km.

When the system starts to merge clean water (without visible oil impurities), then rinse the system with running water and you can fill fresh antifreeze. Household detergents have increased foaming, so when warming up the machine with a flooded solution, it is necessary to control the expansion tank and the tapered neck of the radiator.

What is the cleaning method to choose

If you choose than rinse the cooling system from the remaining oil, it is more effective, it is more profitable and safer will be used to use flushing fluids. They are specially designed for cleaning and do not contain substances aggressive to engine parts and cooling systems. Accordingly, they cannot harm the details. According to the cost, buying a flushing is often cheaper than folk remedies. Listed special preparations are in the price range from 200 to 600 rubles.

Cleaning by folk remedies does not guarantee good result. On the Internet on the forums you can find a lot of discussions as people helped someone, and there is no one. Their use can not only help, but to harm. For example, orthophosphoric acid contained in carbonated beverages can destroy nozzles and seals.

Output

When washing the engine, fill the cooling system, as well as liquid drains, it is necessary to produce when the engine is cooled, in order to exclude the possibility of damage to the engine from the temperature difference and getting a burn when entering the skin.

Before we proceed to the direct description of certain funds, I would like to remind how important it is to make a regular flushing of the car cooling system. The fact is that, depending on the coolant used on the walls of the tubes, of which the radiator consists, the rust is accumulated, oil sediments, antifreeze decomposition products, and scale. All this leads to difficulty circulation of coolant and decrease in heat transfer. And this always badly affects the characteristics of the engine and increases the wear of its individual parts with the risk of their premature failure.

It is worth noting that the washing of the system can be both internal and external (external cleaning implies the radiator washing outside from the particles of dirt, dust, insects on its surface). It is recommended to make the internal flushing of the cooling system at least once a year. It is best to do this in the spring when there are no frosts, and ahead of the hot summer is to come.

On some machines on dashboard There is a light bulb with a radiator image, the luminescence of which may indicate not only a decrease in the level of antifreeze, but also that it is time to change. This can serve as a signal and to the fact that the cooling time of the cooling system has come. There are also a number of indirect signs of the onset of such cleaning:

Radiator icon, signing about problems in the cooling system

• frequent engine overheating;
• problems in the work of the pump;
• slowing the response to the rigging signals (inertia);
• indications high temperatures from the corresponding sensor;
• problems in the work of "stoves";
• the fan always works on high revs.

If the motor is very hot - then it's time to pick up the tool in order to wash the cooling system, and choose time and opportunity for this.

How to rinse the engine cooling system

The process of flushing the cooling system is quite simple, and it consists of the following steps: the car engine warms down a bit, after which it turns off and you need to wait for a while until it cool down; Next, the plug is unscrewed, the old cooling fluid merges from the motor. Attention: Do not drain the cooling fluid on the hot engine - it is fraught with burns and spray antifreeze under pressure; After that, you need to pour the means for cleaning the cooling system. Some of them need to be diluted with distilled water. If you use lemonic acid or coca-cola for washing, specific recommendations on the use of database data for washing the engine will be given below.

In the case when applied specialized means, it is necessary to follow the instructions on the package; Next, some time you need to give the engine to work with a flooded tool for cleaning the cooling system. The time recommendation depends on the type of fluid used; After washing, the liquid merges, and clean water is poured into the cooling system to remove the remnants of the detergent. The water-bay procedure may need to repeat several times; The last step into the cooling system is poured a new coolant. ATTENTION: Choose antifreeze is better as the same that was covered in the cooling system before washing. Careful flushing of the cooling system is necessary to derive the resulting precipitation, dirt, corrosive elements and harmful impurities that can lead to a violation of the stability of the system. We strongly recommend floating a new antifreeze after washing the cooling system, because in the old liquid, even if the machine passed on it not so much kilometers, there are particles of contamination.

What to rinse the engine cooling system at home?

Rinse the engine cooling system next liquids:

Distilled water;
Acidified water;
Special tools for washing the engine cooling system.
The choice of cleaning tool depends on the state of the car.

It is necessary to engage the engine cooling system or in the summer on the street or in winter in the warm box. To start, drain the old antifreeze from the system - this process is described in detail in the instructions for replacing the coolant. If briefly, the following algorithm is as follows:

If the motor is hot, it needs to be able to cool.
Put the car on a flat surface.
To protect your hands from hot engine elements and cooling systems, it is better to wear gloves.
Open and fix the hood.
Under the radiator, you need to put the tank for collecting the old coolant.
Overting drain plugs, Drain the antifreeze in turn from the engine and the radiator.
In the form of a fusion fluid, it is possible to draw conclusions about the state of the cooling system as a whole. In the merge of antifreeze, different particles may be present (scale, rust and the like).

Chemistry for washing the engine cooling system

The laurel means for cleaning the cooling system The main thing when washing the cooling system compliance with security measures and clear instructions. If you compare "folk" funds with special factory compositions, then, of course, the last is better. What washing for the cooling system are presented in the market? Various. From very penny to expensive, from unknown to brands with the name. In principle, there are no frankly terrible compositions among them, unless it is a liquid from underground production. In order to understand what to take, we denote a few better flushes of the engine cooling system. Washing system cooling composition Liqui Moly., like other brand products, has proven themselves well. It is usually sold in the form of a concentrate to be diluted with water (three hundred grams per three liters) or add to old antifreeze.

Ten - thirty minutes to drive on the system, then drain, rinse distilled. From the whole class of semotic flushing, you can allocate the Wick of the Hi Gear cooling system. It gently cleanses and even softens the rubber parts of the system. Falling for seven minutes, diluted with water, the dosage of which depends on the volume, which accommodates the specific cooling system (the engine cooling system is seven liter and hexadecimal). Washing the cooling system to the LAVR tool presents different compositions: for different levels of contamination, with different additives, different operation time, means of flushing the radiator of the engine cooling system. An instruction is attached to each tool, in which it is described in detail how to act.

Folk detergents of the cooling system

As we indicated above, there are two types of washing products - folk and special. Let's start with the first as cheaper and checked.

Lemon acid

Using citric acid To clean the cooling system

The most common lemon acid, divorced in water, can clean the radiator tubes from rust and dirt. It is especially effective in case of cooling fluid used ordinary water, insofar as acid formulations are effective against rust, and alkaline - against scale. However, remember that citric acid solution is unable to remove significant pollution.

The composition of the solution is the following - 20-40 grams of matter dissolve in 1 liter of water, and if the contamination is strong, then the amount of acid per liter can be increased to 80-100 grams (a larger volume is created in a similar proportion). An ideal option is considered when with the addition of acid into distilled water pH level is located in the area 3.

The cleaning procedure itself is simple. It is necessary to drain all old liquid And pour a new solution. Next you need to warm up the engine to the operating temperature and leave it for several hours (and better at night). Next drain the solution from the system and look at its condition. If it is very dirty, then the procedure needs to be repeated 1-2 times until the fluid is quite clean. After that, it is necessary to rinse the system with water. Next, pour the tool that you plan to enjoy as a coolant.

Acetic acid

Using acetic acid for cleaning the cooling system

The effect of this solution is similarly described above. Acetic acid solution is perfect for flushing the cooling system from rust. The proportions of the solution are the following - half-liter vinegar on the water bucket (10 liters). The cleaning procedure is similar - we drain the old liquid, pour a new one and warm up the machine to operating temperatures. Next you need to leave the car with a running engine for 30-40 minutes So that chemical cleaning occurred in the radiator. Next, you need to merge the cleaning liquid and look at its condition. Repeat the procedure until the fluid becomes clean. Next, it is necessary to wash the system with boiled or distilled water, after which it is planted to pour the coolant that you plan to use on an ongoing basis.

Fanta.

Using phantas for cleaning the cooling system

Similar to the previous item. However, there is an important difference. The fact is that, unlike Coca-Cola, where orthophosphoric acid is used, in "Phanta" used lemon acidwhich has a smaller cleansing effect. Therefore, some car owners for cleaning the cooling system pour it instead of antifreeze.

As for the time, during which you need to ride, it all depends on the degree of contamination of the system. In particular, if it is not very contaminated, and cleaning is done more for prevention, it is enough to make the engine for 30-40 minutes on idling. If you want to wash the forged dirt well, you can ride so 1-2 days, then pour a distillate to the system, ride more, merge it and look at his condition. If distillate dirty - repeat the procedure until the system is cleaned. At the end, do not forget to rinse it well and pour a new antifreeze.

Please note that if there are minor holes or cracks in the stove pipeline, but the dirt "tightened" them, then when washing, these holes can open and flow. Therefore, after washing, make the audit of the system pipelines.

Milk Acid or Serum

Excellent option for washing the cooling system of the car engine is lactic acid. However, a significant problem is the fact that it is very difficult to get a milk acid today. But if you manage to get this substance, it can be poured into the radiator in its pure form and for some time to ride on it (or give the car to stand up with a running engine).

More affordable alternative lactic acid is dairy serum. It has similar properties for cleaning the radiator and other elements of the cooling system. Serum using algorithm:

Use of lactic serum

• prepare in advance about 10 liters of serum (preferably home, and not from the store);
• strain the entire bought volume 2-3 times through gauze in order to filter large slices of fat;
• pre-from the radiator merge the coolant existing there, and to pour serum to its place;
• drive with her kilometers 50-60;
• serum is needed in hot, so that the dirt does not have time to stick to the walls of the tubes ( observe Caution!);
• give the engine to cool;
• pour into the radiator pre-boiled water;
• run the engine, give it to warm up (about 15-20 minutes); merge water;
• give cool engine;
• pour antifreeze that plan to use on an ongoing basis;
• release air from the system, if necessary, add the cooling fluid.

Please note that serum has its cleansing properties within 1-2 hours. Therefore, those mentioned 50-60 km must drive during this time. It makes no sense longer to ride, as the serum is mixed with mud located in the system.

Caustic soda

This substance in the people is called differently - sodium hydroxide, "caustic alkali", "caustic natter", "caustic" and so on.

The substance can be used only for cleaning copper radiators (including for the stove radiator). Soda can not clean aluminum surfaces.

In accordance with the official instructions of the manufacturer of copper radiators, it is necessary to act on the following algorithm:

Caustic soda

• remove the radiator from the car;
• rinse its insides with simple water and bleed with compressed air (not exceeding the pressure of 1 kgf / cm2) to the state when clean water will flow out of the radiator;
• prepare about 1 liter of 10% of the solution of caustic soda;
• heat the composition at least to + 90 ° C;
• pour the cooked composition into the radiator;
• give him broken 30 minutes;
• drain the solution;
• for 40 minutes, flushing the insides of the radiator with hot water and blow by hot air alternately (at the same time the pressure should not exceed 1 kgf / cm2) in the opposite direction of the pump operation of the pump.

Remember that the caustic soda causes burns and corrosive live fabrics. Therefore, it is necessary to work on the street in gloves and the respirator.

As a result of a chemical reaction from the radiator pipes, white foam may appear. If this happened - do not be scared, this is a normal phenomenon. The tightness of the cooling system after cleaning must be carried out on a cold engine, as hot water evaporates quickly, and find an alleged place of leaks will be problematic.

Wash engine cooling system by distilled water

We want to immediately note that this is the most inexpensive method of washing the engine cooling system, but at the same time it is the least efficient. At the cost of time and forces, washing with distilled water takes not the first place. However, in some cases, this method will be fully justified.

Naturally, that simple water From under the crane for flushing the engine cooling system, it is impossible to use. There should be exceptionally distilled water or, at worst, boiled at least 20 minutes (it has in its composition at least salts).

Washing system of cooling is carried out elementary:

Pour distilled water into the radiator.
Get the car and give her to work in good order for about 15-20 minutes.
Jump the engine and merge water from the cooling system.
Such a procedure must be repeated several times until the water becomes clean. This method is only when the machine is relatively new, and there are no obvious contaminants in the antifreeze.

Cooling fluid, circulating in the cooling shirt almost reaches a boil, and when there are malfunctions in the system, it really boils from a strongly preheated engine internal combustion. If Tosol boils, then, therefore, force aggregate overheats. And when the cylinder block is roasted - the oil is seeping into the coolant. The oil into the engine cooling system can get and other disorders of the cooling shirt.

All fluid turns into water and forms on the walls of the shirt, radiator and nozzles, precipitate.

Over time, any liquid turns into water, loses its properties, forms on the walls of the shirt, radiator and nozzles, leaves the precipitate. If a sealant was used in the compounds of rubber parts of the system, that is, the probability that its pieces are also in the coolant. In all these cases, the engine cooling system requires cleaning. How to rinse the engine cooling system?
Before proceeding with the flushing of the engine cooling system with their own hands, you need to decide what kind of possibilities you have how much pollution is in a particular car. From how the correct way you chose the depends on the result of the cleaning of the engine cooling system, as well as the effects of washing (the fact is that the flushing of the cooling system by chemicals punges the scored channels, including those that, not necessary, the result - breaking gBC pads, corrosive old rubber-plastic parts and so on).
So, you fully change the cooling fluid (the coolant replacement regulation: old car, Tosol - every 45 thousand km or a year, new car, good antifreeze - 100-250 thousand km or five years old) or her color is a little darkened, there are small traces of rust, dirt - in this case, ordinary distilled water will help (it is sold in stores selling auto chemicals).

How to rinse the engine cooling system itself

Auto chemistry manufacturers created a large number special compositions For washing system cooling in DVS.

1. Prepare tools: thermal protective gloves, 10-20 liters containers, key 12-16 (more often 13, 14), napkins, funnel, screwdriver, if you have to remove the nozzle from the radiator.
2. We substitute the container. We unscrew the drain plugs: on the cylinder block in the form of a detached bolt, on the radiator in the form of a plastic screw from below (or lower nozzle).
3. We merge the cooling fluid, we estimate the degree of contamination.
4. Screw the drain plugs on the spot.
5. Pour distilled water into the expansion tank and into the filling neck of the radiator (if any) is 8 liters (sometimes 16, if the engine is large).
6. We launch the engine for fifteen - twenty minutes (you need to have a thermostat to open a large circle).
7. If you doubt, then wait that the water is cool a little, then drain it, unscrew the drain plugs and substituting the empty container.
8. Evaluate the degree of pollution of the water to the water, if it seems to be very dirty you, then pour distilled clean water to another circle.
9. Tighten the drain screw and cork.
10. Pour fresh in the tank.
11. Let the engine, the fluid level will fall, tighten the antifreeze to the mark.
12. Do the same with the bay mouth of the radiator.
13. Cooling fluid replaced, now needed.

For this, we will weaken the clamp of the nozzle going on the stove and wait until the coolant is spoiled from it. Either we remove the nozzle from the throttle assembly and give air through the hole of the expansion tank until the echo from the throttle pipe appears.
If you know how to rinse the engine cooling system correctly, then air traffic jam will not work. For this, before starting to fill the antifreeze, remove the nozzle in the upper position of the system (coolant feed fitting in the carburetor or throttle valve On the injector) and pour the coolant while it does not stick out of it (keep the pipe vertically hole up).
Consider another situation. Tosol became almost black, there are many dirt in it, rust, there is an oil film. To rinse the engine cooling system from oil, you need more serious means than distilled water. Auto chemical manufacturers have created a large number of special compositions for flushing the cooling system of the FRO. If you allow means tools, then purchase one of the seven-minute good brand (for example, LAVR, LIQUI Moly, Hi Gear and the like) or a cleansing complex consisting of several flushing.

Methods for washing the cooling system

Chemical washes are of different appointments: from rust, from scale, as well as washing the engine cooling system from emulsion (oil, gasoline). Packaging is attached detailed instructions on the use of this composition.
However, it is expensive. There are cheaper and proven ways to clear the cooling shirt, nozzles and radiator. So, :

There are cheap and proven ways to clean the cooling shirt, nozzles and radiator.

• distilled water;
• lemon acid;
• vinegar;
• coca Cola;
• caustic soda;
• milk serum;
• sprite.

Washing the cooling system is one of the actions that should be learned to do. The event is not complicated, does not require special tools and skills, and, most importantly, it is expensive, if producing it in the car service. The danger of chemical burns can be excluded if you give a liquid to cool before the drain (in many manuals it is written that it is necessary to merge hot, but believe me, it is absolutely not necessary). Easy repair.

In order for the engine cooling system did not fail a previous time, prophylactic work must be carried out. Such prevention is washing the system, in order to purify it from scale, sand, dirt and other harmful deposits, which accumulate on the radiator grille, inside the tubes, reducing their diameter. If you cannot clean the cooling system in a timely manner, you can soon encounter the following unpleasant consequences:

• , right up to complete termination of work;
• may result in a malfunction toosol heater;
• may fail the water pump;
• stop will start working in the car.

When should I wash the cooling system?

It is recommended to wash the cooling system at least 1 time per year. This procedure is permissible to do and with your own hands - there is no special science. Look below video "Washing cooling system on Renault Logan, Sandero"

How to wash?

For flushing the cooling system of the car, in conditions of a homemade garage, car owners love to use citric acid and table vinegar (not an essence!).

It can be rinsed with conventional cool water only with a weak degree of contamination if there are no traces of scale and rust. It is necessary to understand that clean water, without adding an acidic environment, can remove only conventional dirt and sand. But if you add acid into the water, then such a solution is able to eat rust and scale and clean the walls from them.

Thus, how to wash the car cooling system will depend on how much the system is contaminated.

Determine the degree of contamination of the cooling system

It is necessary to merge the cooling fluid and see what color it is and is contained in it rust particles. If the fluid is dark, it means that pollution is significantly, and for washing it is necessary to use acid - lemon or acetic. You can buy a special tool for washing.

If the fused Tosol or antifreeze will be light, without precipitate, then you can wash the pre-boiled and cooled water.

Washing the cooling system of the car water

Prepare water for washing the system: bring it to a boil and let it cool to room temperature. It is possible, instead of boiled, use distilled water. Put the pre-rubber gloves to protect the skin of the hands from contact with a poisonous liquid.

1. Drain antifreeze, how to do it, in detail.
2. Water pour into the expansion tank, in accordance with the usual norm.
3. Get the engine and let him work 20 minutes, at idle.
4. Drain the water and look at her color. If the water is muddy and dirty, then re-flushing is required. It is necessary to flush the system until the water becomes clean.
5. Fill a new cooling fluid.

Flushing with acid coolant

As already mentioned, in the presence of a precipitate in a mixture of antifreeze (tosap), rinse the system with water with the addition of acetic or citric acid.

LEMON ACID

1. Prepare a solution at the rate of 100 g of acid - on 5 liters of water, this is the optimal proportion.
2. Drain antifreeze (how to do it - reference above).
3. Pour the solution with citric acid into the expansion tank.
4. Let the engine warm up and pass about 2 km. During this time, the solution will warm up to a temperature of 70 ° C, at a minimum, and the reaction on the splitting of rust and scale will begin. The engine must work at least semi-hour.
5. Drain the solution. If required, you can make a re-flushing with a solution with a smaller concentration of citric acid than for the first time.
6. After washing with a sour solution, pour out simple water into the tank and rinse the details of the cooling system to completely remove traces of an acid.

Table vinegar

1. Prepare a solution at the calculation of the floor-liter of table vinegar (9%) - by 10 liters of water.
2. Drain antifreeze and pour the solution into the tank.
3. Heat the engine to operating temperature.
4. Mock the engine engine and leave the car, with a solution flooded into it, stand - at least for 8 hours, and you can also for a whole night.
5. Drain the solution. If necessary, you can make a re-flushing.
6. In conclusion, after draining acetic solution, rinse the cooling system of the engine cool water.

After washing

After the flushing is completed, when you have already poured a new cooling fluid, it may turn out that air remained in the cooling system. Read and watch the video separately. After removing air bubbles, it remains only to add antifreeze to the desired level.

Video: Washing system cooling on Renault Logan, Sandero

If video does not show, update the page or

The process of periodic cleaning of pipes and components of the cooling system in the engine is called washing. Essentially washing the engine is the same procedure as well as timely replacement Oil I. air filters. If you do not promote the cooling system on time, then with the next replacement of the coolant inside the valves, scale and dirt will be accumulated on the tubes. At the same time, all channels in the radiator and nozzles will inevitably be born during the operation of the vehicle. As a result, it may be necessary to replace the pump and the adjustment of DPDZ. In the worst case, you will have to change the entire cooling system.

How is the engine clog?

Many of the car owners are faced with the following situation - the cooling fluid has just filled into the engine gradually acquires black. This is due to the fact that when pouring, the pure fluid passes through the dirty tubes of the radiator, as a result of which changes the color and pass the remaining clean hoses and engine nozzles. As a result, the engine power drops to 10% and characteristic noise in the radiator appears.

It should be understood that the radiator is contaminated not only by dust, but also specific sediments. The composition and structure of these deposits depends on the coolant used by the driver. In 90% of cases, the cooling system is poured:

• Water. And so far, individual motorists pour water directly into the radiator. In the summer months, this leads to the formation of scale on the tubes, which leads to clogging of the entire system as a whole. In winter, the water in the radiator turns into ice cubes, which leads the engine into disrepair.
• Antifreeze. Antifreeze effectively cools the engine (especially in winter time), But at the same time, after 1-2 months, its gradual decomposition begins. Disintegration products fall together with liquid inside the cooling system and clogged nozzles.

Causes of insufficient engine cooling

• The appearance of an extensive plaque on the inner surface of the walls of highways and radiator nozzles. Flap on the tubes appears in the process of coolant oxidation under the influence of a constant temperature difference in the engine. Since the raid in the hoses has low thermal conductivity, the engine cooling does not occur. The heat exchange between the engine and tubes with liquid is strongly limited, and the heat simply does not pass through the resulting layer of scale.
• Pollution of the inner nozzles of the radiator dust and small metal particles. When dust appears in the cooling system, the heat exchange with the engine is completely violated. In turn, small metal particles will contribute to the rapid overheating of the engine.
• The appearance of the air traffic jam inside the system. When the air traffic jam in the tubes, the coolant cannot fully circulate on all highways.

Tip: If you notice that the engine is on full move Suddenly stalls probably the problem lies in the engine cooling system.

As a result, if you don't have your own hands or in the service station to wash the cooling system, in a couple of years you will have to completely replace the engine.

How to rinse the radiator?

Washing the cooling system in the engine is carried out by the following methods:

• With distilled water;
• Using acidic water;
• Apply special means For flushing cooling systems.

Tip:choose a specific means for cleaning the radiator depending on the state of the machine. If the tubes are all clogged with screaming, and even the shock screwdriver does not help to knock it down, then use special solutions from the store.

During the work, a number of requirements should be observed:

1. In winter, work should be carried out in the warm garage, and in the summer - in the fresh air.
2. Before starting work on cleaning tubes and hoses, you need to drain the entire antifreeze.
3. If the engine is still hot, then it is necessary to give it the opportunity to completely cool.
4. The machine should stand on a flat surface.
5. In order to protect hands from contact with hot engine elements, be sure to dress protective gloves.
6. Before the plums of old antifreeze, be sure to install a small container under the structure of the radiator.
7. Remove all drain plugs, and start dragging antifreeze first from the engine, and then drain it from the radiator.

Washing engine and radiator distilled water

The most inexpensive but at the same time effective method Washing systems with a slight contamination of the tubes is distilled water. The whole process will consist of 3 stages:

1. It is necessary to pour distilled water directly into the radiator housing.
2. Next you need to start the car and give it to work in mode idle move For 15-25 minutes.
3. Then be sure to muffle the car and drain all the water from the nozzles.

These stages will need to repeat several times with an interval of 20-30 minutes. At the end of work, water in the cooling system should remain clean. Most often, distilled water is used to wash the engine in a recently purchased machine or with minimal contaminants of antifreeze.

Washing hoses and cooling tubes in the engine acidic water

If in the previously coolant fusion you found traces of scale or decay and corrosion products, then to clean the system, water must be "acidified". To achieve the task, you will need to prepare a small amount of weakly acidic aqueous solution. The composition of the liquid includes samples:

• Citric acid;
• Lactic acid;
• Acetic essence;
• Caustic soda.

The flushing procedure consists of the following operations:

• We prepare a weakly acid solution from the specified ingredients and pour it into the cooling system.
• We start the engine and leave it to work for 15 minutes.
• Next, we drag the engine, and we do not drain the fluid from the radiator. In order to move the whole scale, the solution should absorb deployment (takes it a few hours).
• We drag the solution of acidified water in 2-3 hours and repeat the specified operations again.

In total, the flushing of tubes and hoses takes about 5-7 hours. At the end of the work, the residue of the acidic solution must be removed from the radiator by washing using distilled water.

It is enough to spend on this procedure day, and for a long time you get rid of scale in the radiator. However, this method has its drawback - if you add too much acid, it absorbs not only in scale, but also in the hoses themselves. Subsequently, acid is simply the relief of the surface of rubber and plastic components of the engine, and they will have to be completely changed.

Tip:after washing the cooling system with acidic solution, be sure to check the tire pressure of the car I.

Flushing of the radiator and the engine with the help of purchased tools

Now modern products of the chemical industry can effectively eliminate any scale and contamination formed in the engine. As a rule, all purchased tools are conditionally divided into 4 types:

• Acid-based agents;
• Alkaline and salt solutions;
• Two-component solution;
• Neutral cleaning agents.

Since when cooled the engine, scale and decomposed antifreeze products appear, the cooling system must be cleaned either only with the help of acid or only with alkalis. The universal cleaning agent does not exist, because acidic and alkaline solutions are neutralized among themselves. That is why special purchased solutions are produced either on an acidic or alkaline base.

However, there is a so-called two-component flushing solution, which acts on the cooling system in 2 stages: first the engine and the radiator is washed with the first component, then with the help of the second. In turn, neutral solutions are based on the operation of catalysts and have a neutral pH. Most of the neutral means for cleaning the radiator are manufactured by the plant as a kind of additive to antifreeze or as a special concentrate for coolant.

A feature of the application of special purchased solutions is the need to pour them into the tank 1 time and do not think about the condition of the cooling system for 1000-2000 km. Such means are rinsed all the above contamination, while dissolved precipitated and precipitate to colloid states that do not contaminate the small tubes of the radiator and the engine nozzles.

Video: Washing system cooling