Without cooling system, the normal operation of the internal combustion of any car, including Lada Largus, is impossible. The heat removal from the parts exposed to the temperature exposure is carried out by circulating the special liquid, called antifreeze. The durability of most components of the system directly depends on the quality of this refrigerant. The timely replacement of antifreeze is also important.

Manufacturer's regulations

According to the regulatory requirements set forth in the Lada Largus documentation attached to the model, it is possible to testify when antifreeze replacement is required. The manufacturer strongly recommends changing the liquid after a 75,000 mileage or after five years of finding a wagon in operation. Here the owners are focused on the event, the moment of the onset of which happens before.

Also important aspect is the correctness of the choice, which will be positively affected by the resource of most elements in the cooling system.

What amount to pour?

The cooling circuit of the Lada Largus motor can accommodate 5.45 liters of fluid. It is this volume that should be purchased for replacement.

What antifreeze is usually poured into this model? Regarding Lada Largus Models The developers recommend using a refrigerant produced under the Glacoel RX brand. The type of fluid itself is obliged to correspond to the so-called "d-class". It implies the manufacture of a substance using ethylene glycol as the basis to which water (distillate) is added in a particular proportion.

The experience of the owners testifies to the use of Motul Inugel Optima Ultra antifreeze as an analogue. This type of refrigerant uses some manufacturers of foreign cars. In general, the final decision for you, but you can rely on the experience of car owners, which antifreeze is pouring experienced drivers.

And what if mixed?

This question has long been on the hearing of most car enthusiasts. Some manufacturers resort to staining of liquids produced by them on the principle of identity of the chemical composition, others generally act at their own discretion.

The overwhelming majority of owners (and not only Largus) never mix fluids with different colors. This is a very correct approach, since refrigerants with different properties can coordinate the system.

Some owners (their minority) prove the absence of harm when mixing multi-colored refrigerants, resorting to independent experiments.

Guide for Lada Largus states that a special component is added to the antifreeze, which actually stains the liquid. The color of this compound depends on the specific set of chemical properties. During the choice, it is recommended to pay good attention in the direction of the color shade of the purchased liquid, which would correspond to the fact that it is flooded in the system.

How to replace antifreeze?

Replacing antifreeze is carried out on the cooled motor.

Start.

1. Install Lada Largus over the viewing ditch.
2. After waiting for the cooling of the motor, we unscrew the lid on the expansion tank, in order to reset the residual pressure in the circuit.
3. Acting from under the bottom of the car, dismantle the crankcase protection and set aside.
4. Note that the main radiator of the system, as well as the engine unit, in this model do not possess special corks, allowing the exhaust liquid to the maximum to merge.
5. Under the pipe of the radiator node, we establish a container that is able to "take into yourself" at least 6 liters of the old refrigerant. We take PASSATIA and produce squeezing the ends of the clamp, holding the hose on the lower nozzle of the radiator.
6. We shift the clamp and remove the nozzle. We act gently so as not to be removed by antifreeze. At the initial stage of the drain, we recommend completely close the lid on the expansion tank. This will reduce the pressure of the antifreeze discharged into the container. As a drain, the lid can be gradually open.
7. After the departure of the entire refrigerant, we put the hose to the previous place and fasten the connection to the same clamp.
8. Before the process of filling from the fitting, which is present on the refrigerant supply hose to the stove radiator, remove the cap.
9. We pour fluid into the cavity of the expansion tank and observe how it penetrates the system. We carry out that while the open fitting will begin to flow a fluid that form a solid jet. The air bubbles should in no case should, otherwise the cork will be created, which then the entire system efficiency will be reduced to "zero".
10. We close the fitting cork and fill the tank to the mark indicating the maximum level.
11. Let the Lada Largus motor, heating a bit, periodically raising turns to a level of 2500-3000 per minute. This allows you to remove the remaining air from the system (if it is there). As the engine is heated, we turn on the heating in the cabin and detect the hot air flow, "pulling out" from the deflectors.
12. The wasting unit, let it cool and inspect the system for the absence of leaks.
    Replacing the coolant completed.

Let's summarize

Today we were convinced that choose and replace antifreeze in Lada Largus completely simple. The main thing follows the recommendations of the manufacturer, comply with the prescribed regulations and beware of the refrigerant fakes. Do not forget that the replacement of the coolant should be carried out in strict accordance with the prescriptions. Use our manual as a guide to action, because we tried to set out all the steps of manipulations as much as possible.

In the process of the operation of the OBS, a significant amount of heat is distinguished, which requires its lead, which means you need a reliable cooling system. In Lada, Largus is warmly discharged thanks to the circulation of antifreeze. The service life and efficiency of the engine depends on its quality. Therefore, it is necessary to change it in a timely manner. With the replacement of the coolant to Lada Largus, even a novice car enthusiast will cope with the step-by-step instructions for conducting the procedure.

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Use of antifreeze and reasons for its replacement

Many car enthusiasts do not understand the values \u200b\u200bof antifreeze, believing that simple water from the water pipeline can cope with cooling. The difference lies in the complex chemical composition of the refrigerant. During operation, the engine is heated to high temperatures, the antifreeze task is to be unnecessary heat and maintain the operating temperature of the motor - about 90 degrees.

Ordinary water is not suitable for these purposes, since at a temperature of 100 degrees begins to boil and evaporate. In this case, to maintain the system of the required level of fluid, a frequent tap of water will be required, which creates inconvenience during operation. In addition, the water contains various impurities that settled on the walls and internal parts of the power unit, radiator and highways. This may disrupt the correct thermal exchange, which threatens the overheating of the engine.

Antifreeze is applied to Lada Largus as refrigerant. So that the motor does not overheat during the operation of the car, the cooling system must be in good condition and flooded a high-quality refrigerant. Otherwise, the filling parts of the power unit will not cool in time, which will lead to its overheating and failure. The overhaul takes a lot of time and expensive to do. Therefore, it is necessary to monitor the condition of the cooling system and refrigerant.

In the manual car Lada Largus, the manufacturer requires a regulatory replacement of coolant (coolant) after 35-45 thousand km of run or after two years of operation. Terms depend on how the event comes earlier.

The following factors affect the frequency of replacement of Co.

• quality antifreeze;
• chemical composition;
• operational characteristics;
• manufacturer.

The latter establish their dates for the manufactured product. On average, manufacturers recommend changing bes once a year. The periodicity of the replacement also depends on the operating conditions, the technical condition of the car, driving manners. Therefore, the mileage does not play a major role. The health of the cooling system and the quality of antifreeze is also important. This is especially true Lada Largus, as an aluminum radiator is installed there.

Decide on the need to replace the coolant, by defining its quality. In the garage conditions, you can use the following methods:

Method	How to check
Visual inspection	In the coolant, which lost its main qualities, there are different outsiders mechanical inclusions in the form of a lime fly, sludge, flakes, suspension, etc. Antifreeze becomes muddy, which indicates that it needs to be urgently changed.
Boiling	The quality of the coolant can be checked by bringing it to a boil. To do this, you can take the minimum amount of antifreeze. Pour fluid into a tablespoon and bring to a boil holding over a gas burner. If after the boil the sharp smell of ammonia (ammonia alcohol) appeared, then this is counterfeit or poor-quality antifreeze. It is better not to fill. A more dangerous refrigerant in which a copper sediment appeared in the form of granules. If such antifreeze is pouring into the car, the granules will fill the channels, which will prevent the circulation of the liquid and lead to the overheating of the engine.
Test strips	Checking is carried out using a lactium paper, which can be purchased in any automotive. Sometimes it is sold together with antifreeze. To test the lactium strip with an applied reagent omit in the refrigerant. Next, wait a few minutes and take out. Making the output of the result of staining must be guided by the manufacturer's instructions.

How to choose the antifreeze

High quality refrigerant is able to maintain its characteristics of a long period of time, regardless of the conditions in which the machine is operated. There are brands of antifreeze, the manufacturer of which promises that the replacement will be required only after 100 thousand km of mileage. Naturally, they cost more than ordinary cooling fluids.

It is important to choose the refrigerant correctly, which will extend the resource of the motor and the components of the cooling system. Manufacturers recommend using for Lada Largus Antifreeze Glacoel RX class D.

Ethylene glycol is used as the basis in this refrigerant. Distilled water fills in the desired proportion to it and special additives are added. You can use analogs.

Antifreeze are divided into mineral G-11 and organic G-12. The first is used in used machines, the second is poured into modern new cars. Antifreeze differ in the color of the liquid. Color defines a set of properties inherent in this refrigerant. Mix liquids of different colors is not recommended, since such a mixture can harm the cooling system. Therefore, you need to buy the CO, the same color that was flooded.

We change the liquid yourself: step-by-step instructions

For replacement, not less than 6 liters of antifreeze will be required, since 5.45 liters of coolant is placed in the cooling system of the car Lada Largus. Experienced drivers are recommended to have antifreeze in the system, flooded in a system for unforeseen situations that may arise on the road: fluid leakage due to depressurization of the system nodes.

Works should be carried out on the cooled engine. If the car after traveling, you need to wait for the complete cooling of the motor.

Drain and fill antifreeze to Lada Lagrus consists of a sequence of actions:

• Car set on the lift or smooth viewing pad. Fix the wheels to avoid rollback.
• Raise the hood to access the engine compartment. Develop a car, removing the negative terminal from the battery.
• We unscrew the cover from the expansion tank to reset overpressure. For security purposes, it is necessary to work in gloves. If the motor insufficiently cooled from under the lid can go steam.
• Go to the bottom of the car and dismantle the protection from the engine if it is installed.

• We install under the nozzle of the radiator capacity of at least 6 liters for the drain of the old coolant. The design of Lada Largus does not provide a drain hole with a plug, so the coolant will have to be merged by loosening the clamps on the lower nozzle of the radiator.
• With the help of sliding passages, squeeze the ends of the clamps, which hold the hose on the radiator nozzle.

• We shift the clamp and remove the hose from the nozzle. It is necessary to act carefully not to dick with a refrigerant.
• Plum intensity by adjusting the lid on the expansion tank. If it is spinning fluid flows slower, if not, then antifreeze flows faster. First, the lid should be tightly twisted so that the antifreeze does not stick from the hose sharply. Then we unscrew it as the fluid flowing.

• Additionally, you can remove the cap from the fitting located on the hose supplying antifreeze to the heater.

• When antifreeze is fully stroke, rinse with cold water, pouring it into the expansion tank. We wash with clean water from the hose.
• After washing the system, we return the hose to the place and fasten the clamp.
• The new antifreeze is poured through the expansion tank until it flows the jet from the air outlet.

• In the flowing fluid there should be no air bubbles, otherwise the cooling system will not work effectively.
• Return the cap of the fitting to the previous place. We fill in the tank of the coolant to the maximum level and tighten the lid.
• To finally remove the air of their cooling system, if it fell there, we bring the power unit and periodically bring the number of revolutions per minute to 2.5-3 thousand after the engine warming when the heating is turned on, hot air should go.
• The moach motor, we wait until you cool and check the system for leaks. Eliminate detected leaks. This is the final step of the replacement procedure.

For the efficient operation of the cooling system, it is necessary to monitor its technical condition and the quality of antifreeze. On time to repair and change the coolant according to the instructions, especially since the replacement of antifreeze by car Lada Largus is a simple procedure.

Replacing antifreeze on Renault Logan, Sandero, Duster, Largus.

The features of the design of the internal combustion engine are such that in the process of operation there is a huge thermal energy, and therefore, without a reliable cooling system, it is not necessary. In Lada Largus, as on any other car with such an engine, it uses antifreeze to effectively remove heat surplus, which continuously circulates along a closed circle with the ability to cool. From the quality of antifreeze, as well as the durability of many components of the engine depends on its timely replacement.

Signs of need for procedure

Antifreeze is used as a coolant in Lada Largus car. Its main purpose in maintaining the normal temperature of the power plant due to heat removal. The cooling system malfunction or low-quality antifreeze can lead to the fact that the parts of the engine, creating a huge heat energy in the process by friction, will not be able to cooled in a timely manner. Further development is predictable.

All this leads to the most dangerous state: overheating of the motor, as a result of which the internal combustion engine fails.

It will take a major overhaul, which is not inexpensive, besides, the process is laborious. To avoid similar troubles, and an effective cooling system was created. One of its most important components is antifreeze. He takes direct participation in the heat exchange.

Causes of using antifreeze

Many motorists, especially newcomers, do not understand: Why use antifreeze, if conventional water can cope with its task? The whole thing in the difference in chemical composition. The refrigerant is a complex chemical fluid, and this is not due to the desire of manufacturers to sell goods as expensive as possible, using more chemistry.

During the operation of the engine, antifreeze is exposed to high temperatures, we are talking about 100 or more degrees. Any other liquid, especially water, at such temperatures begins to boil and, accordingly, evaporate. In other words, to maintain the optimal level, you will have to constantly pour a new liquid into the system, which is not very convenient. In addition, the water contains various impurities that, due to high temperatures, are deposited as a scale on the engine shirt and in the radiator, which ultimately leads to a violation of heat exchange and overheating.

Cooling fluid replacement frequency

In modern realities, choose antifreeze, ideal for the operational installation mode is not easy due to the huge range and constantly changing technologies.

The service life, which means, the time from one replacement to another will be largely determined:

• chemical composition;
• characteristics;
• the cost of a product of a trademark.

If you refer to manufacturers, the replacement frequency is on average once a year or depending on the mileage installed by the manufacturer. For Lada Largus, the Rules of the Automobile provides for from 35,000 to 45,000 kilometers.

This should take into account the nature of driving, engine technical condition and operating conditions. With negative factors, the replacement can be carried out before. Focus on this issue only on the mileage mileage on the speedometer is not worth it. In addition, the quality of antifreeze is also important, subject to a faulty cooling system, low-quality antifreeze may aggravate the situation. It is impossible to rely on mileage on Largus cars, where the aluminum cooling radiator is used.

High-quality modern antifreeze for Lada Largus Thanks to some components, it is capable of maintaining its properties for a long time, regardless of operating conditions. For example, some antifreeze brands, according to the manufacturer, do not need to replace a minimum of 100,000 kilometers. Such new generation products naturally cost much more expensive, but it will depend on how often the car owner will have to change the coolant. Another plus is that the expansion tank with this liquid will even find a newcomer without any problems, opening the workpiece. A characteristic feature - in different colors (blue, green, red).

Check quality antifreeze

Do not trust the numbers on the canister, the specified change in the package does not always correspond to reality. Having reached these numbers, it is easy to be in a situation where antifreeze, having developed its resource, will stop performing its functions. And this will inevitably lead to overheating of the power plant, although for the term of the replacement is still not needed. But you can avoid such situations and the following troubles.

There are about ten to determine the quality of quality, but not all of them are available to an ordinary car owner. At home, you can independently believe the coolet fluid in three basic methods, the simplest and not requiring financial investments.

We check for yourself

Methods	Your actions
Test strips.	Lacmus paper is familiar to many more from school bench in chemistry lessons. They can be bought at any auto parts store, some manufacturers offer them together with antifreeze, as an addition. Checking Simple: You need to dip a test strip with a reagent in antifreeze, wait five minutes and estimate the result of staining with the instruction manual. This can be estimated until the next replacement.
Visual inspection.	Antifreeze, which has lost its basic properties, is easily determined by the presence of various extraneous impurities (flakes, precipitation, sludge, limescale, etc.). On quality can be judged by the color of the liquid: a muddy color signals the need for a speedy replacement.
Boiling.	You can boil antifreeze to check the quality. It is worth using a small amount of fluid, for example, heating a tablespoon with coolant on a gas burner or a stove. If, when boiling, the smell of ammonia alcohol (ammonia) is clearly felt, which means low-quality antifreeze or this is a fake. Such liquid is better not to use. It is much more dangerous when a precipitate from the granules of copper mood is formed during heating. When using such a liquid in the car, the Channels of the cooling system will score, which ultimately will lead to overheating of the power unit.

Knowing these simple ways, it is possible at home to quickly determine the quality of the coolant. Thus, it will be possible to avoid problems with a low-quality product.

Cooling fluid selection rules

Lada Largus car cooling system accommodates 5.45 liters of antifreeze, it is recommended to replace at least 6 liters to replace, the remaining volume can be used for the top of the extell, or when leakage occurs (opening the nozzle, the loss of the radiator tightness, the leakage due to weak clamps and etc.).

For Lada Largus, the manufacturer recommends pouring a cooling liquid of the brand GLACOEL RX, which is such an antifreeze poured at the factory. When choosing an alternative version, it should be borne in mind that the fluid must match the D-class. This means that it is produced on the basis of ethylene glycol, which is added distillate, most often water. As an analog you can use the Motul Inugel Optima Ultra brand. A similar brand is also used on Renault cars. In general, you can choose another option from a large range, the main thing is that there is a match with the main parameters.

Question about mixing

Many motorists doubt, and is it possible to mix different antifreeze. Such questions arise due to the fact that some manufacturers take the same antifreeze (i.e., the chemical composition is identical), but the compositions of different colors are used as dyes. Howbeit.

Mix the refrigerant of different colors, and even more so different stamps is not allowed.

The fact is that antifreeze with different chemical compositions, mixing, can bring more harm than good. Some car owners at their own peril and risk are experimenting with various refrigerants. But it is not recommended to repeat their actions.

In the manual for the operation of many cars and Lada Largus, in particular, it is written that the coolant producers for staining are added to the special component. But the color of staining will depend on the specific chemical composition of the liquid. When choosing color is also recommended to focus on the shade of the factory refrigerant.

Features of the device

Closed-type cooling system. In the plug of the expansion tank there is a safety valve. The engine cooling system includes a radiator of the salon heating, which is located under the instrument panel.

Filling the engine cooling system:

K4M and K7M (equipment with air conditioning) - 5.45 l;

K4M and K7M (equipment without air conditioning) - 4.5 liters.

The temperature began opening the thermostat valve - 89 ° C.

The temperature of the complete opening of the thermostat valve is 99 ± 2 ° C.

The valve target value in the plug tube is 1.4 bar.

1.6 (16V)

1.6 (8V)

Figure 13-1 - Engine cooling system scheme:

1 - engine;
2 - water pump;
3 - thermostat;
4 - fitting for air removal;
5 - heater radiator;
6 - engine cooling system radiator;
7 -shvent tank

Appointment and principle of cooling system

The efficiency of the cooling system depends on its design and operating conditions. The design of the cooling system is determined by the power of the engine, the size of the cooling radiator, the type of coolant used and the power of the water pump (the coolant circulation pump), the type of fan, thermostat and pressure in the system. Unfortunately, the cooling system usually does not pay attention until problems arise. Proper regulatory maintenance allows you to prevent such problems.

The cooling system should give the engine the ability to warm up to the required operating temperature as quickly as possible and then maintain this temperature. It should effectively operate in the ambient temperatures range from -30 ° F (-35 ° C) to 110 ° F (45 ° C).

The maximum temperature when burning the working mixture in the engine periodically takes off to the level in the range from 4000 ° F to 6000 ° F (from 2200 ° C to 3000 ° C). The average temperature in the combustion chamber is in the range from 1200 ° F to 1700 ° F (from 650 ° C to 925 ° C). Prolonged heating to such high temperatures would cause a decrease in the strength of the engine parts, so it is necessary to remove heat from the engine. The cooling system maintains the temperature of the combustion chamber walls in the temperature range, which ensures the maximum efficiency of the engine operation (Fig. 7.1).

Fig. 7.1. Typical combustion temperature of the working mixture and the typical temperature of the exhaust gases in the graduation window

Problems arising in the engine at low operating temperatures

In order for the engine to work in normal mode, its operating temperature should be higher than some minimally permissible level. If the working temperature is too low, then there is not enough heat for normal fuel evaporation required to obtain the required composition of the fuel and air mixture. As a result, it is necessary to increase fuel consumption in order to create a concentration of its vapors that ensures the flammability of the working mixture. Heavy, having less volatility components of gasoline do not evaporate and remain in the form of non-burned liquid fuel. In addition to this, part of the working mixture, in contact with the cold walls of the engine, cools, which leads to incomplete combustion of fuel and the formation of a car.

The combustion of gasoline is a rapid oxidative process, which is a chemical reaction of the compound of hydrocarbon fuel with oxygen contained in the air. This reaction passes with heat release. When burning five liters of fuel, one liter of water in the form of vapors is formed. Part of this moisture condenses and falls into the oil pan together with the unburned fuel and soot, which leads to the formation of the deposits of the sludge. Condensed moisture reacts with unburned hydrocarbons and additives, resulting in acids: coal, sulfur, nitric, bromist-hydrogen and salt. These acids are responsible for the wear of the engine caused by internal corrosion and rust. When the coolant temperature drops below 130 ° F (55 ° C), rust immediately appears. At temperatures below 110 ° F (45 ° C), the water formed during the combustion process of fuel accumulates in oil. At the coolant temperature below 165 ° F (65 ° C), it is rapid wear of the walls of the cylinders.

To reduce the negative processes in a low temperature-related engine, and facilitate engine start-up in cold weather, most manufacturers are offered cylinder block heaters as an additional equipment. These heaters are connected to a conventional electrical network (an alternating current network with a voltage of 110 V) and the heating element heats the coolant (Fig. 7.2).

Fig. 7.2. In order to remove the heating element, it is necessary to unscrew the screw to which it is attached to the processinglet in the wall of the cylinder block (A). The heating element is removed from the cylinder block. The coolant heated with the heating element immersed into it expands and, rising up, displaces the cold coolant. During the convective heat exchange, the coolant heat is heated throughout the engine (b)

Problems arising in the engine at high operating temperatures

To protect the engine from overheating, its operating temperature should not go beyond the maximum permissible temperature. High temperatures cause oxidation of oil. Under their action there is dissociation of oil with the formation of coke and oil. With prolonged overheating, the coke is postponed on piston rings, scoring them. Laco-shaped naars causes the plungers of the valve hydraulic pushers. With high temperature heating, the viscosity of the oil is inevitably reduced and reduce the thickness of the lubricant layer. If the lubrication layer becomes too thin, the dry contact of the surfaces of moving parts occurs. At the same time, the friction coefficient increases, which causes a reduction in engine power and accelerated wear of its nodes.

Engine overheating costs

The failure of the cooling system is the main reason for the failure of the engines. Auto mechanics often torment nightmares - they dream, as in the service center just repaired by them put in the car, whose radiator is scored. After the bulkhead or repair of the engine, as a rule, a mandatory replacement of the water pump and all hoses are made. If any repair of the engine or its replacement, you should also check the radiator on the absence of leaks and clogging. Overheating is the most common cause of the engine breakdown.

Design of cooling system

The coolant passes through the engine, absorbing the heat released in it. Then she flows into a radiator, which dispels heat into the environment. The coolant is continuously circulated by the cooling system, as shown in Fig. 7.3 and 7.4. Passing through the engine, the coolant is heated by as much as 15 ° F (8 ° C). Currently through the radiator, it cools. The coolant pumping rate can reach 4 liters per minute per horsepower power generated by the engine.

Fig. 7.3. Cooling fluid flow diagram through the engine

Fig. 7.4.In the photo of this block of cylinders from which the cooling system channels surrounding cylinders are visible. Note that the cooling fluid is washes cylinders from all sides and also passes between them

Engine temperature and exhaust toxicity.

In many areas there is control of the toxicity of car exhaust gases. Hydrocarbon emissions (NA) are simply unburned fuel. In order to reduce the release of unburned hydrocarbons and successfully complete the toxicity of exhaust gases, make sure that the engine so that the engine is heated to the normal operating temperature. Car manufacturers determine the achievement of the "normal operating temperature" on the following features:

1. The upper radiator hose becomes hot and is under high pressure.

2. Twice turns on and off the electric fan (fans) of the cooling system.

Before leaving the toxicity control of exhaust gases, make sure that the engine warms up to a normal operating temperature. It is best to travel by car 20 miles (32 km), then certainly a catalytic neutralizer, oil, as well as a coolant heat up to a normal operating temperature. It is especially important to take care of this in cold weather. Most drivers believe that to warm up the engine, it is enough to let it work at idle until warm air go out of the salon heater. The salon heater takes the heat in the coolant. Car manufacturers recommend not allowing the engine at idle more than 5 minutes, and to warm up the engine - give it to work one or two minutes at idle, after which for further warm up it is necessary to slowly drive through the car to raise the oil pressure in the lubrication system.

Hot The cooling fluid through the thermostat valve installed at the highest point of the engine enters the radiator. The outlet of the cooling system is connected to the upper inlet pipe of the radiator with a hose, which is fixed with the help of clamps. The coolant is cooled in the radiator by the stream of blowing air. Having cooled, it lowers down the radiator and through the lower exhaust pipe enters the water pump, which provides forced circulation of the coolant in the engine.

NOTE

In a number of engines of new designs, the thermostat is installed on the water pump inlet. When a cooled fluid flows into a thermostat, it closes and remains closed until the coolant temperature reaches its opening temperature. Thus, the placement of the thermostat on the water pump inlet reduces the temperature of the coolant temperature fluid, weakening the sharp changes in temperature that could lead to the emergence of thermal stresses in the engine, especially in the engines with the aluminum head of the cylinder block and the cast-iron block.

The heat removal efficiency of the cooling system is determined mainly by the efficiency of the radiator. The designs of radiators are designed to ensure maximum heat exchange efficiency with minimal sizes. The air flow of the radiator is enhanced by the cooling fan with a belt or electrical drive.

Antifreeze replacement is one of the maintenance procedures required to maintain a car in working condition. This procedure should be carried out not often, but it is necessary to approach it very responsibly. Otherwise, serious problems with the engine may appear, the solution of which will require considerable investments of time and money.

Dates of the change of antifreeze for Lada Largus

Rules of exploitation of Lada Largus say - replacing coolant In the described car produced every 90 thousand mileage kilometers. Moreover, it does not affect the quality of roads or the intensity of the use of the vehicle. This figure is indicated, including in the car service book. When acquisition of a new car The replacement is made simply - when the numbers reach 90, 180, 270 thousand mileage kilometers (and so on).

For buying used car It should be found when the last time the antifreeze was replaced. It is possible to change the cooling fluid immediately after purchasing the machine, in order to avoid unpleasant consequences (for example, unplanned repairs). If the car is in a garage for a long time in the garage, and in three years the overall mileage was less than 90 thousand kilometers, it is also necessary to update the fluid in the cooling system. According to the manufacturer's recommendations, means need to merge and change to a new every three years.

Antifreeze volume for Lada Largus with a complete replacement Coolant in the car with air conditioning equal to 5.45 liters. It is recommended to buy a capacity of 6 liters (for example, in case of leaks in the system). If a air conditioning in auto not installed, the volume of cooling system is equal 4.5 liters. Choose antifreeze is the same brand that was previously used, or similar type.

Instructions for changing the coolant

The first, where to start the coolant update procedure is selection of a suitable brand means. When replacing antifreeze in Largus, the liquid is used in the same type. Mix different means for cooling the engine strictly is not recommended - this leads to very unpleasant consequences, up to the occurrence of serious breakdowns. It is worth remembering - often domestic manufacturers call Antifreeze tool. But Tosol is one of the varieties of antifreeze, and it is not suitable for each engine.

In the machines, the Lada Largus model is recommended to apply cooling fluid "Glaceol RX" (type D) - This is a recommendation issued by the vehicle manufacturer. Moreover water dilution Allowed only in extreme cases. Antifreeze poured into the cooling system contains a set of additives to combat corrosion. And when diluted, these additives lose their effectiveness. Topping the cooling liquid by distilled water It makes sense in summer, in severe heat. In such a situation, the water contained in the medium evaporates, and the level of antifreeze in the system decreases. And it is restored by adding the required level of distilled water.

To carry out the replacement, you must put the car to the observation pit or on the flight. It is recommended observe safety equipment, avoid injury and damage to property:

• Machine over a pit or overpass should be carefully fixed: drown out the engine, put on the handbrake and leave the car in speed (on the transfer - turning on the first speed or reverse). Special wedges are installed under the wheels.
• After installation, it is required to wait until the engine is completely cooled, as well as antifreeze in the cooling system.
• Working with antifreeze (Tosol) should be remembered - it is a poisonous substance. It is recommended to use gloves, and not allow funds to fall into your mouth, ears, eyes, or respiratory tract.

First stage Replacement of coolant - drain of used antifreeze from the system. First you need remove platethat is engine protection (protection of the power unit). It is located below and keeps on six fasteners. They are unscrewed by the standard wrench on "10". It is recommended to carefully remove the bolts in order not to lose them in the process of maintenance. Access to the bottom of the radiator opens. Experienced motorists recommend checking whether the thermostat is operating normally (whether the system does not overheat), there is no leakage in order to make repairs in time if it is necessary.

In the case of LADA cars (including Lada Largus), there is no special hole for draining antifreeze in the cooling system. Merge it accounted for through the hose From pipe radiator. But first it is necessary remove the lid of the expansion tank (unscrewed manually), and reset the pressure in the system. Then the lid is put on back. Before draining antifreeze Requires to cook capacity volume of at least six liters - It will go to the spent coolant. Now it is necessary to take passatats or pliers, weaken the clamp on the hose, coming to the radiator, and then this hose is disconnected. It should be accurate - the liquid flows at once.

With a pre-closed expansion tank, the liquid flows into a weak jet. Fixing the hose in the container Under the exhaust antifreeze, the owner can open the expansion tank again. This will speed up the drain of fluid from the system. Exhaust antifreeze can not be used. But it is not recommended to thoughtlessly pour it - this is a very toxic agent capable of putting the soil for a long time.

Second phase The maintenance of the cooling system is its complete cleaning. The flushing of the cooling circuit can be carried out at home, in the presence of necessary tools for cleaning. There are three ways to clean the system:

• With distilled water. The least effective option, but in certain situations it makes sense to use. It is usually used with a weak contamination of the cooling circuit or when the antifreeze is drained due to leaks or engine repair.
• With home cleaning products. Motorists mix distilled water with weak acids and the resulting solution is washed with the system. It is worth considering - a strong solution is able to adversely affect the rubber or plastic parts of the cooling circuit. For cleaning is used: lemon or lactic acid, concentrated vinegar solution (essence), soda. It is recommended to take 70-80 grams of citric acid on 5 liters of heat water. This is enough for a single flushing system.
• With special means. There are compounds added directly to the system. They are used to reduce the contamination of the engine cooling circuit. But when washing before replacing antifreeze, stronger agents are used. To complete cleaning it is recommended to purchase alkaline and acid, and wash them in turn. Important moment: mix these compositions can not. Acid and alkali during mixing neutralize each other, and the means completely lose their effectiveness.

Self system washing process looks like that:

• The selected flushing fluid is poured (in the closed system).
• Motor starts and warming up - it is obliged to work 15-20 minutes (until half an hour).
• In case of distilled water - Liquid merges.
• When Use home remedies (in particular, citric acid): The liquid is held in the system 2-3 hours, then merges.
• In the case of special compositions To clean the cooling circuit: merges immediately either holds in the system for a certain time. The method of use depends on the tool and described in detail on the package.

With a strong contamination, the procedure is repeated several times, until complete removal of dirt, scale, etc., after cleaning, it is necessary to start the fill of the new antifreeze.

Last, third stage - Filling the cooling system with new antifreeze. First, the hose from the radiator nozzle is attached to the place (it is necessary to tighten the clamp to fasten). Then unscrewing the cap on the hoseThrough which Antifreeze goes to the "stove" of the Lada. Now you should start pouring fluid into the system. At a certain point, the antifreeze will begin to pour out of the fitting. Close up it is possible not earlier than formed uniform, solid jet! Otherwise, the system will remain in the system: it will reduce the efficiency of the contour (almost to a minimum).

After the closure of the fitting is necessary fill the cooling system by antifreeze to the required maximum level (In the expansion tank there is a mark indicating maximum). The tank is closed, and the engine starts. It is necessary to warm up the motor well, periodically increasing the revolutions to 2.5-3 thousand. In the process it is worth turning on the stove (in the case of normal operation of the system, it will give a smooth stream of hot air). After the engine warming, it is necessary to double-check the system for leakage. If there are no problems, it means that the replacement of antifreeze was successful.

Lada with 8 valves

Most of the listed recommendations and the replacement rules of antifreeze concerns each variety of Lada Largus. In essence, the model with eight valves is an earlier version with the Renault engine. This motor differs higher demanding To the quality of fuel and relatively lower power (on paper - no difference is available). But on the principles of replacement of antifreeze in Lada Largus with a motor on 8 valves, this does not affect.

Of insignificant differences, it is worth mentioning the faster cooling of the engine and the protection of the force aggregate. A number of owners notes that engine for eight valves cooled relatively faster. For the indicated reason, you can earlier begin to replace the coolant. Second moment - motor protection On the car described it looks different. But this factor does not affect the process of replacing antifreeze.

Lada with 16 valves

The first thing that is worth noting is the method described above, the coolant change is suitable, first of all, for Lada Largus with a 16 valve engine. This motor, manufactured by the Concern AvtoVAZ, began to be used from the moment the designers abandoned 8-valve engines. Changing motor basic models was produced in 2015. And for vans and universal, a similar procedure was carried out already in 2017. Wherein replacing antifreeze in Lada Largus on the 16 valves It was already described above.

The owners of the model under consideration must be remembered - here used the cooling system of one type. And the antifreeze replacement procedure looks equally. The only thing that is worth remembering is a number of car enthusiasts argues that Motor AvtoVAZ cools slower.