Replacing the VAZ cooling radiator. Replacing a car radiator without contacting a service center

The cooling system of the VAZ 2107 includes many elements, the main of which is the radiator and water pump... They are responsible for efficient cooling engine during operation.

In addition to direct cooling, the system is responsible for heating the air to heat the passenger compartment. Therefore, a faulty VAZ 2107 radiator can affect the engine's performance and comfort in the cabin during the cold season.

Radiator Malfunction Symptoms

  1. Poor engine cooling. When the machine is operated with low-quality antifreeze or water instead of it, scale and other contaminants are deposited on the walls of the radiator pipes. At the same time, throughput and the efficiency of heat transfer and the engine will start to overheat with a working thermostat and a sufficient level of coolant.
  2. Leaking coolant. The tubular design of the radiator is not very durable. Holes and cracks may appear in it as a result of falling stones flying from under the wheels of cars. Sometimes the cracks are small, so the coolant flows out in small "portions" and immediately evaporates. This can only happen when the engine is warm.

These malfunctions usually require replacement of the radiator. In some cases, it is possible to do only with its repair (soldering), for which it is necessary to remove it from the car. Before removing the VAZ 2107 radiator, drain the coolant

Removing antifreeze from the cooling system

Coolant (antifreeze) is highly toxic and requires safety precautions during operation. The first thing to be sure of before draining the antifreeze is that the motor has cooled down. On a hot engine, coolant is under pressure and if you try to open the radiator reservoir or remove the clamp from the hose, it can burst out in the form of a hot fountain, which is fraught with serious burns. For the same reason, you should not check the fluid level on a hot engine by opening the cover. expansion tank.

After making sure that the engine has cooled down, open the radiator valve for the interior heater. For this upper arm heater control must be moved to the extreme right position.

After that, the works are transferred to engine compartment... The procedure is as follows:


Dismantling the cooling radiator VAZ 2107

The cooling radiator of the VAZ 2107 (injector) is similar to the radiator of the carburetor model. Therefore, their installation and installation are no different.

After draining the coolant, disconnect the expansion tank hose from the radiator, after loosening the clamp.

Further work procedure is as follows:

After dismantling, the radiator should be checked. It is difficult to establish the presence of deposits clogging the tubes. If the reason for removing the radiator was to find the cause of the coolant leak, a simple check can be done.

Checking the tightness of the radiator

You can check the radiator (brass or aluminum) in a bath with water. To do this, you need to plug the holes, immerse the radiator in water and supply air to it under a pressure of 0.1 MPa. If air bubbles appear, the radiator needs to be soldered and replaced. Aluminum radiators, with which most of the new models of the "classic" VAZ are equipped, should be checked at an air pressure of 0.2 MPa.

Small damage to the brass radiator can be soldered. In case of severe damage, or if the radiator is made of aluminum, it needs to be replaced.

Installation of a radiator VAZ 2107

The radiator is installed in the reverse order of removal. When reinstalling the radiator, be very careful not to damage it. Before attaching the pipes, it is worth checking the type and condition of the clamps and, if necessary, replace them with new ones that have a tightening worm-type... Such clamps are more reliable, easier to install, and their price is low.

After installing the radiator, all that remains is to fill in the coolant. You can hit the road!

The radiator in a VAZ-2110 car is a device designed to dissipate heat, thereby eliminating the possibility of overheating of the power unit. Even with optimal exploitation the unit in question may become unusable.

Quite often, motorists repair a radiator. But practice shows that renovation work do not give a long-term effect. That's why the best option v this case- replacement of the cooling radiator.

The radiator consists of 2 body elements and a core. There is a plug for filling liquid in the upper part of the unit, and a drain valve in the lower part.

The branch pipes are also structural elements. Besides, essential elements cooling systems are electric fan and thermostat.

The body consists of two containers. They are adjoined by pipes for transporting antifreeze. There are cooling fins and brass tubes directly inside the housing that form the core of the unit. Filler plug designed to redirect antifreeze directly to the radiator.

A motor in the top ten most often overheats as a result of a violation of the functionality of the cooling system. This happens for the following reasons:

  1. clogged pipes. This problem is rare. Usually, motorists are faced with such a situation when antifreeze or poor quality antifreeze is poured into the cooling system. The solution to the problem can be the replacement of pipes with the subsequent use of high-quality antifreeze;
  2. contamination of the case. Over time, dirt accumulates directly on the surface of the radiator. This significantly affects the performance of the unit. Therefore, the owners of the dozen are advised to periodically perform external cleaning;
  3. coolant leak. There are many reasons for the leakage of antifreeze and antifreeze. In such a situation, it is necessary to eliminate the shortcomings;
  4. radiator leaks. To solve the problem, the unit must be dismantled and an appropriate decision made based on the assessment.

Manufacturers offer a fairly modest choice. Nevertheless, the purchase must be treated as responsibly as possible.

Before how to remove a radiator on a VAZ 2110, it is advisable to familiarize yourself with the advantages and disadvantages of cooling devices, which are represented by aluminum and copper structures.

Let's dwell on each of them:

  1. copper radiators. It is known that copper is highly resistant to corrosion. Despite the fact that the unit has a fairly large weight, it performs its functions as efficiently as possible. Also, copper has a high margin of mechanical strength. The greatest efficiency is demonstrated by double-row units with high level Efficiency;
  2. aluminum structures. Characteristic feature is light weight and affordable price... At the same time, aluminum is significantly inferior to copper in terms of thermal conductivity. A significant disadvantage such structures is the rapid appearance of corrosion. But the motorist will not need to bear significant financial costs. The cost of such units is several times cheaper than copper radiators... The most reliable brands are Pramo and Luzar.

The work of replacing the unit does not require any special skills. Beforehand, the motorist is advised to familiarize himself with the owner's manual. vehicle... Videos that can be found on YouTube will also help you get the job done. The replacement is carried out in the following sequence:

  1. first, you need to drain the cooler using a tap;
  2. complete dismantling of the battery. The battery must be removed so that it does not interfere with the work;
  3. owners carburetor engine you can immediately start replacing. If the top ten is equipped with an injection power unit, then it is necessary to dismantle air filter;
  4. then you need to remove the upper frame fasteners, and then dismantle the electric fan;
  5. at the next stage, two pipes are dismantled;
  6. in order to remove the cooling radiator, it must be tilted slightly towards the engine.

In this way, replacement of the cooling radiator VAZ 2110 v garage conditions, and without the involvement of specialists and unnecessary spending.

If the unit does not show signs of corrosion, and there is an insignificant part of the leak in the structure, repair work can be performed. But the practice and reviews of dozens of owners indicate that even quality repair does not allow operating the radiator for a long time.

When installing the structure, it is necessary to pay attention to the rubber pad. They must be securely installed in the holes in the cross member. Rubber grommets are provided for installing the radiator housing. To be precise, it's the bottom part.

At the final stage, it is necessary to pour antifreeze or antifreeze into the system, having previously connected the pipes. Then set accumulator battery and all the plugs are twisted. After completing all the work, you need to start the power unit and check the functionality of the system.

All the work on dismantling and installing a new cooling radiator on domestic top ten you can do it yourself. There are some parts in the replacement process. So, the motorist must adhere to the sequence of actions, observe all safety measures, do the work carefully and accurately.

Does the owner of a VAZ-2110 car need to contact the station Maintenance to replace the cooling radiator? Most likely not worth it. Specialists really work in car services.

But, unfortunately, many car services install repaired units that have become unusable. It is also possible that the car owner will be offered an expensive radiator, which in fact turns out to be a cheap fake.

Unscrupulous car service employees use many schemes to deceive gullible car owners. In the process of installing a radiator, a person may be told that it is necessary to replace whole line parts and consumables. That is, in fact, they will offer services to solve problems that do not exist. As a result, low-quality work can result in a large sum. It is for this reason that the owners of the VAZ-2110 car, as well as other motorists, are advised to contact reliable workshops. If the owner of a dozen has at least minimal skills in servicing his car, then replacing the radiator on his own will not be difficult.

As you know, a cooling radiator is one of the main structural elements of a car. The cooling radiator occupies the main position in the cooling system, and it is entrusted with the task of dissipating the heat that comes from the motor in the air.
On the VAZ 2112, replacing the cooling radiator is a responsible and widespread process. Replacing the VAZ 2112 cooling radiator occurs when leaks or other problems are detected.

Radiator and everything about it

It was invented a long time ago, back in the 19th century. Even then, he began to perform essential functions and an ingenious human thought gradually brought it to perfection, and today imagine a car on liquid cooled without this element it is simply impossible.
The radiator, like any mechanism, unit, element of the car, eventually fails. But there are special rules that must be followed.
Otherwise, the failure of the radiator will occur ahead of time. So, open the radiator when high temperature Coolant is prohibited, but some motorists continue to do so.

Thermosyphon effect or water pump

So:

  • Any cooling radiator interacts with a pump or water pump, as it is also called. But in old COs, such a pump was absent and the coolant got into the radiator in a different way, due to a physical effect called "thermosyphon".

Note. The thermosyphon effect implies the following: the density of water drops when it heats up, thereby the liquid begins to tend upward. After that, it enters the radiator through the upper pipe. When the water cools down, its density increases and the liquid is automatically lowered to the bottom of the radiator.

  • Over time, due to the low efficiency, the thermosyphon effect gradually began to give way to a more advanced system involving the use of a pump.

Radiator task

Needless to say, the most important task of any RO is to remove heat from the engine into the atmosphere. Thus, the antifreeze or antifreeze is cooled by passing through the radiator.
After the modernization of the RO, the following was achieved:

  • RO began to be installed in the most convenient place to ensure heat dissipation. In particular, in front of the car, which, while driving, is blown by a strong flow of cold air from the front.

Note. On some vehicles, the engine is not located at the front of the vehicle, but rather at the rear. But again, RO is installed in this case in front, and all CO is already conducted to the engine through the entire body of the car.

  • The modernization of the RO made it possible to protect it well in the cold season. We are talking about blinds that are installed in front of the radiator at the production stage of the VAZ 2112 or independently by the owner himself.

What RO consists of:

  • RA always consists of 2 tanks: upper and lower. They can be metal or plastic.
  • CO pipes are connected to these same tanks or compartments.
  • RO consists of a core, which is a set of seamless aluminum tubes (tubes can also be made of brass, less often copper). The thickness of these same tubes, or rather their walls, is 0.15 mm or less. Each of the tubes is covered with copper or aluminum strips.

Note. Aluminum radiators are much lighter than brass ones, but they quickly deteriorate under the influence of mechanical stress.
In addition, the repair of such radiators is extremely difficult, because it involves welding, which is very difficult to perform. As you know, aluminum requires special welding.
And in order to match the performance of a brass radiator, aluminum must be made much thicker and larger.

This CO element is very important for the normal functioning of the RO. It supports the main RO function, that is, it helps to maintain a constant temperature.
In hot weather, one thermostat is not enough, and then a fan is used or even several fans are installed in the VAZ 2112 additionally.

Replacement RO

As mentioned above, it is needed when its repair is impossible and frequent coolant leaks are detected. The RO is checked with the help of special equipment in the workshop, where it can still be "cured".
As mentioned above, places that have corroded with rust over time are restored by welding.

If the repair did not help, then the RO is replaced as follows:

  • First of all, the battery is removed from the car.
  • The coolant is drained.
  • Also filmed.
  • After that, you need to find a clamp that tightens the wiring harnesses and unfasten it (in last resort, you can cut and then put a new one).
  • We unfasten the clamp in the same manner. throttle located on the fan shroud.
  • It's time to loosen the clamps and then disconnect the PO outlet hose from the thermostat. At the same time, it is necessary to remove the RO supply hose from the cooling jacket.

  • Now you need to loosen the clamp that secures the steam hose and disconnect it from the expansion tank. Then remove the clamp from the hose.
  • The steam outlet hose is pulled out of the clamps that tie it to the expansion tank hose and the water pump inlet pipe.
  • The nut that secures the radiator to the body in the upper part is turned off. It is a nut that also secures the fan shroud.
  • We tilt the PO towards the engine and take it out with an upward movement. Dismantle this element together with the fan.
  • Disconnect everything from RO attachments(hoses).
  • 2 bolts and nuts hold the fan casing. They are turned away, and the casing with the fan is separated from the RO.

Note. Two cushions of the lower attachment should remain on the RO. They should also be in mandatory replace if they are torn or have lost their former elasticity.

  • A shroud with a fan is put on the new radiator. Pillows, as it was said, are put on new ones.
  • RO is installed in place. Filled into the coolant system.
  • The replacement process is over.

Radiator repair

You can also repair RO with your own hands, if possible. In other words, if the core, the upper or lower tank, pipes are damaged on the RO, then everything can be eliminated on your own.
Although this is a very painstaking job, it can still be done with patience, desire and knowledge.
So:

  • The repair of this element begins by checking the coolant level in the expansion tank. On the expansion tank of the VAZ 2112 there are min / max inscriptions, by which you can determine the rate.
    If the liquid is constantly decreasing, then we are probably talking about a leak that can form in the pipes.
  • We inspect all hoses and replace the torn ones.
  • Finding a crack in the hoses is easy, but finding a crack in the radiator itself is a little problematic, especially if the crack is small. But today, special additives to antifreeze are sold in stores, which, falling into the radiator, close microcracks. Very convenient and practical.
  • If a leak is found in the radiator pipes, then it can be eliminated either with a sealant, or with electrical tape, or with a cut hose.

Instructions for replacing RO are given here in order to help novice drivers independently carry out repair work, the price of which is clearly going through the roof today in specialized car services. During the operation, it is recommended to view photos and videos - materials that give a practical understanding.

Replacing the radiator should be done when its tightness is lost, because sealing is not always effective. Replacing the radiator should start by draining the coolant. It is better to do this on a cooled engine. There is no need to drain all the liquid, we drain it directly from the radiator. It is more convenient to remove the radiator itself together with the electric fan, and then disconnect it.

We begin by unscrewing the engine protection, if any, from the side of the radiator drain plug with the "8" key.

If not drain tap, but there is a valve, then in order to drain the coolant without losses, spills, etc., it is necessary to unscrew it with the cap of the expansion tank closed. First, it is necessary to equalize the pressure in the cooling system to atmospheric by opening the tank cap.

ATTENTION: DO NOT PERFORM WORK ON A HOT ENGINE! There is a risk of splashing liquid and getting burned!

We substitute the dishes under the drain, where the coolant will drain. With the lid closed ...

unscrew the valve ...

By slightly opening and closing the cover of the expansion tank, we regulate this pressure. Next, unscrew the screws securing the air filter housing:

and air hose clamp:

We take out the sensor connector mass flow air and remove the air filter housing,

while opening access to the part of the radiator where the pipes and the steam hose are located:

We start removing the radiator. Using the "8" head, unscrew the two nuts securing the pressure plate ...

... and shoot it.

Having tilted the radiator towards the engine, we loosen the clamps on the radiator of the inlet pipe and the steam outlet hose.

The designations in the figure are as follows:
1. Steam hose
2. Inlet pipe
3. Clamp of the inlet pipe
4. Clamp for steam hose

We also loosen the clamp of the outlet pipe located at the bottom of the radiator:

Disconnect the hoses and fan connector. We take out the radiator together with the fan and remove the fan. To do this, use the key "8"

unscrew two nuts and two radiator mounting bolts.

We move the fan to a new radiator:

Putting everything together in the reverse order. At the bottom, the radiator rests on two rubber cushions,

which, during assembly, must enter the holes in the cross member. We put the pipes on the radiator fittings and tighten the clamps. We fasten the radiator and air filter. Fill in coolant to the maximum. When filling, in order to reduce the formation of steam plugs inside the cooling system, it is necessary to remove the hose from the fitting of the throttle assembly:

We start the engine and check for leaks. After a while, check the coolant level, it may drop slightly. This suggests that all vaporization is gone and air locks... Add coolant if necessary.

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To the record "Replacing the radiator VAZ 2108, 2109, 21099" left 10 comments.

    Tell me who faced such a problem, the radiator drain valve broke off at 15k, i.e. half remained in it, and half in the hand). Really how to unscrew the thread from there?

Dear friends, we bring to your attention a short manual for removing and replacing a top-ten radiator. In the same way this procedure produced on models 2111 and 2112. The radiator must be replaced in the event of a leak. Sealing the radiator is a thankless task - it's easier to replace and forget for a long time. We also recommend replacing all the clamps (if you have factory ones) and ideally all the pipes in the complex. Usually, with the "age" of the radiator, the throughput also deteriorates, respectively, it cools worse, so it is better to replace it and not to solder it. So let's prepare necessary tool and let's get to work. Open the hood and unscrew the radiator drain plug. We unscrew the bottom plug for draining the antifreeze and drain the old cooler into some clean container:

We take the key at 13 and get to drain plug on the engine block, unscrew it too, drain the remnants of antifreeze.

Disconnect the chip that powers our radiator fan.

Then we unscrew the two lower mounting bolts of the electric fan on both sides:

Then we get up from below and unscrew the last bolt securing the electric fan.

After that, the electric fan of the cooling system no longer holds anything and we remove it from the engine compartment:

Now we unscrew the clamps on the pipes going to the radiator. If you still have factory ones, you will have to sweat, but later it is recommended to throw them out and use the normal ones, as in the photo below.

After the clamps are loosened, carefully disconnect the pipes from the radiator. Remnants of antifreeze can drain from there, but it's okay. We carefully remove the radiator, slightly tilting it towards the engine.

Do not lose the rubber cushions on which the radiator is placed. If they are chilled or torn, replace them when installing a new radiator. You need to install a new radiator according to the same scheme only in the reverse order. Do not forget to stretch all the clamps, ideally use a little sealant on the connections to the pipes. And another recommendation - after replacing the radiator with a new one, do not be greedy and go broke on a new coolant. So you learned how to independently remove and change the radiator for the VAZ-2110, VAZ-2111 and VAZ-2112. If you have any questions, we will be glad to see you at our