DIY vaz 2107 stove radiator repair

In detail: DIY repair of a vaz 2107 stove radiator from a real master for the site my.housecope.com.

The heating system, which uses the heat of the coolant, is responsible for heating the interior of the VAZ 2107. This scheme, recognized as optimal for cars with internal combustion engines, has been used in cars since the middle of the 20th century.

Like any part of a car, a VAZ 2107 stove may stop working. In winter, such a breakdown makes the operation of the car impossible: the glass sweats or becomes covered with frost, which impairs the view. For effective repairs, you need to know well the design of the interior heating system.

The system includes the following components:

Heater VAZ 2107, whose task is to heat the air. The main element of the heater is the radiator through which the coolant circulates.
A fan that directs heated air into the passenger compartment. It is attached to the casing by means of vibration-damping elastic pads.
Heater control system, including the fan button, knobs and heating control system dampers.

The heating system works like this:

Through the grilles on the bonnet, air enters the air intake box located in the engine compartment near the windshield.

In the event of rain or heavy rain, the water separates from the air and flows down into the openings in the box. This allows you to use the stove in any weather, but until the radiator heats up, the air that gets into the cabin during rain will be damp.

The air flow is directed to the VAZ 2107 heater and heats up passing through the radiator. Heating is controlled by a tap that regulates the amount of coolant flowing through. The crane is controlled by means of a flexible rod attached to the control lever.

Video (click to play).

While driving, the air flow enters the engine compartment and the air independently enters the heater. During a stop or at low speed, an electric fan is used, controlled by a switch that has three positions: "off", "full speed" and "low speed". Reduced speed is achieved by turning on the motor through a resistor that reduces the voltage across the motor winding.

After the radiator, air enters the air ducts and exits through the deflectors, which allow changing the direction of the flow. Warm air can be directed to the windshield and side windows, under the feet of the driver and front passenger.

Control elements of the air flow from the VAZ 2107 stove:

Air distribution cover for the fan that regulates the air flow.
Levers and handles that change the position of the air inlet covers and air flow dampers.

Before repairing the VAZ 2107 stove, you need to understand the causes of the malfunction.

If the VAZ 2107 stove does not heat and when the heater is on, the air coming out of the deflectors remains cold, the reasons may be as follows:

Another type of breakdown is antifreeze leakage. This is manifested in the appearance of condensation on the windows or leakage of antifreeze into the cabin under the feet of the passenger and driver. The reasons are as follows:

Antifreeze flows out through the heater tap. In this case, it can be replaced without removing the radiator.
Leakage occurs through a burst pipe. The solution is to replace the branch pipe with a new one.
Heater radiator drip. In this case, repairing the VAZ 2107 stove consists in soldering or replacing the radiator.

If antifreeze leaks in the event of a heater breakdown, repairs must be carried out immediately - ethylene glycol contained in antifreeze is toxic and inhalation of its vapors causes serious harm to the body.

To do the job, you need a Phillips screwdriver and a set of keys (open-end and socket).

loosen the heater hose clamps located in the engine compartment;
remove the hoses from the heater radiator pipes (in this case, a small leak of antifreeze is possible);
unscrew the screws securing the rubber seal;
dismantle the seal;
unscrew the radio panel;
disconnect the cable from the valve of the VAZ 2107 stove;
using a screwdriver, dismantle the brackets on the fan casing;
lower the cover down;
remove the heater radiator.

Often, repairing a VAZ 2107 stove consists in replacing or repairing a heater radiator. The repair steps depend on the type and cause of the malfunction:

A clogged radiator can be flushed out with water. Scale on the walls of the honeycomb can be removed using a special agent that dissolves it.

Leaks in a copper (brass) radiator can be soldered. Using a powerful soldering iron and solder, a hole or crack can be repaired. Leaking aluminum radiators must be replaced.

Important: to eliminate a leak in the stove radiator or the engine cooling system, do not use the agents added to the antifreeze - they can cause clogging of the honeycomb of the VAZ 2107 radiator.

Repair of the VAZ 2107 stove completes the assembly of the heater. Assemble it in the reverse order of disassembly. The work has a number of features:

rubber gaskets must be replaced with new ones and lubricated with silicone sealant;
before assembling the heater, it is necessary to attach the pipes and the tap to the radiator;
you cannot overtighten the nuts so as not to crush the gaskets;
before putting on the rubber hoses, the outer surface of the metal radiator pipes must be treated with a sealant;
after the VAZ 2107 heater is assembled and connected, one must not forget to add antifreeze to the system and check its tightness.

Important: the repair of the VAZ 2107 stove should be carried out in conjunction with checking the health of the engine cooling system components. This approach allows you to accurately determine the cause of the breakdown and reliably eliminate it.

You can improve the VAZ 2107 heater by installing an additional fan to enhance the air flow to the windows. Another common type of tuning a VAZ 2107 stove is replacing the fan mode switch with a button.

In every car, an integral part of the equipment is a stove, without which heating the interior and comfortable driving is impossible. Sometimes there are problems with the VAZ 2107 heater, as a result of which it is required to repair or replace certain elements.Many malfunctions with a car occur with the arrival of cold weather, and this is especially true for cars of the domestic auto industry. One of the main problems is the inefficient operation of the heating system, as a result of which the windshield and side windows are poorly heated. Owners of VAZ 2107 quite often encounter a situation when the interior of the car simply does not warm up in winter. In this case, there is no need to talk about any comfort of passengers and the driver. To understand what the reasons are and to eliminate a possible malfunction, you first need to understand the design of the "seven" heater.The main elements of the VAZ 2107 stove are:

radiator;

tap;

fan;

control cables;

air ducts.

Details of the heater and ventilation of the body VAZ 2107: 1 - the lever of the air distribution cover; 2 - bracket for control levers; 3 - heater control levers; 4 - air duct for side glass heating; 5 - flexible rods; 6 - heating air duct

As the vehicle is operated, certain malfunctions may occur with the stove, which reduce the efficiency of the unit or make it completely impossible to work. There are not so many symptoms of basic problems and they boil down to the following:

As for the life of the stove, it is inappropriate to give any numbers. It all depends on the quality of the parts, the coolant used, as well as the frequency of vehicle operation.

If the heat exchanger leaks, then it will not be difficult to detect it. The coolant in the form of a puddle will be under the feet of the driver or passengers. However, do not rush to conclusions and buy a new radiator for replacement.The leak can be associated not only with him, but also with leaky pipes or a faucet. To do this, you need to get close to these elements and carefully examine them with good lighting. After making sure that the problem is not with them, only the radiator remains. By the way, sometimes when a leak appears, when the stove fan is working, the windshield fogs up and a characteristic smell of antifreeze appears. Having found out that the reason lies in the heat exchanger, it will need to be removed, and then repaired or replaced with a new one.

If the engine is warmed up, the stove tap is open, but cold air is coming from the heating system, then most likely the radiator is clogged or there is a low level of antifreeze in the cooling system. To check the coolant (coolant) level, just look at the level in the expansion tank or unscrew the main radiator cap on the muffled engine. If there are no problems with the level, then you need to deal with the heat exchanger, you may have to flush it or completely the entire cooling system. To avoid possible clogging of the heater radiator, you should not add various additives that eliminate small leaks. Such media can easily clog the tubes of the stove.

Cold airflow from the heating system can also be caused by airing the system. In this case, you will need to remove the air plug and add coolant.

Airing - the appearance of an air lock in the cooling system during repair work or when replacing the coolant.

The heater valve may fail over time as a result of scale formation

In addition, the problem is possible with the tap itself, which over time can become clogged or scale build up if water is used instead of antifreeze. In case of malfunctions with the tap, the part is disassembled and cleaned or simply changed. Another, albeit rare, but possible reason for a cold stove, may be a pump failure. In this case, the engine warms up, but the pipes leading to the heater radiator remain cold. In this case, the water pump must be repaired immediately. Warm air may also not enter the passenger compartment due to problems with the stove fan. The problem can be both with the motor itself and with its power circuit, for example, when a fuse blows.

Having found out that the heater needs repair, it will need to be completely or partially dismantled. If there is a problem with the motor, then it is enough to remove the lower part of the unit. If there is a problem with the radiator, you must first drain the coolant from the engine cooling system. To carry out repair work, you will need the following tools:

Phillips and flat screwdrivers;
set of open-end and socket wrenches.

To replace the stove, you will need a set of keys and screwdrivers

After the coolant drains and the necessary tool is prepared, you can proceed to disassembly. It is carried out in the following order:

In most cases, there is no need to completely dismantle the heater. They usually change a radiator, faucet or motor.If only the radiator is being replaced, it will not be superfluous to inspect the electric motor and lubricate it.Assembling the heater does not cause any difficulties, since all actions are performed in the reverse order of disassembly. However, there are some points to consider. When replacing a radiator, new rubber seals must be installed. They are pre-coated with silicone sealant. The nuts should be tightened without using any special efforts so as not to squeeze out the seals, thereby breaking the tightness. Image - DIY repair of a vaz 2107 stove radiator

When installing a new radiator, it is recommended to replace the rubber seals

When the heat exchanger is installed in place, and the stove is completely assembled, the edges of the inlet and outlet pipes are lubricated with sealant. If the pipes are in a normal state, that is, the rubber is not cracked, leave them after wiping the inner cavity with a clean rag. Then put on the hoses and tighten the clamps. After assembly, it remains to fill in coolant and check the tightness of the connections.

During the operation of the car after repair, you should also observe the joints for leaks.

If there are problems with the "seven" stove, you can fix them with your own hands, due to the simplicity of the assembly. To remove and replace the heater, you will need to prepare a set of tools and follow the step-by-step instructions.

There are many malfunctions of a VAZ 2107 car that cannot be detected immediately. As a rule, they do not directly affect the operation of the main units, and are detected after some time. Such malfunctions include a malfunction of the heater radiator. It can be expressed in the formation of a leakage of coolant from the radiator, clogging of the internal channels, which prevents its normal circulation through the radiator of the stove. All cars are subject to such problems, with any type of engine, be it an injector or a carburetor.

Any of the indicated malfunctions of the VAZ 2107 cooling system requires the removal of the radiator, after which it is repaired or replaced with a new one. The replacement itself is not too difficult, but it requires some care and accuracy. To complete the work, you will need the following tools:

Key for 10;
Key for 7;
Crosshead screwdriver;
Rags.

In addition, you need to stock up on coolant for refilling after replacement and two new rubber gaskets.

The first step is to remove the fan casing. To do this, you need to remove the shelf and the bottom of the glove box, the radio panel, disconnect the connecting pads of the electrical wiring. After that, access opens directly to the heater fan housing. Removing it will give you access to the stove radiator. It is recommended to spread a rag on the floor, as replacement may cause fluid to leak from the cooling system.

We pass into the engine compartment of the VAZ 2107. It is necessary to remove the rubber pipes from the outlet pipe and the pipe of the heater tap. To do this, using a Phillips screwdriver, release the clamps that tighten the pipes.

Then, with a 7 key, we twist two self-tapping screws and remove the sealing diaphragm through which the stove tubes are brought out.

We return to the VAZ 2107 salon and unscrew the cover of the heater tap control cable, remove the loop from the lever. The radiator no longer holds anything, and by carefully removing the tubes from the partition between the passenger compartment and the engine compartment, you can carefully remove it.

Further, using a 10 key, unscrew the four bolts sequentially holding the branch pipe and the heater tap.

If this is possible, repair or flush the radiator, otherwise buy a new one. Taking this opportunity, check the condition of the heater tap, if necessary, replace it. Assembly and installation takes place in reverse order:

Sequentially screw the tap and the branch pipe onto the radiator using a 10 key. In this case, the old rubber gaskets are replaced with new ones. Do not forget to change them, because old gaskets can cause leaks in the future.

Carefully install the radiator in its original place by inserting the tubes into the baffle.
Put the diaphragm on the tubes and secure it with two self-tapping screws using a 7 key.
It is necessary to put on the rubber pipes of the cooling system on the pipes and tighten the worm clamps. If the old clamps do not provide high-quality fixing of the pipes, they also need to be replaced.
It remains to fix the heater tap control cable in place and adjust it so that the control lever fully opens and closes the tap.

All operations related to the direct replacement of the VAZ 2107 heater radiator and the restoration of the cooling system performance have been completed. However, before proceeding with the final assembly, it is recommended that all connections and the stove itself be checked for coolant leaks. To do this, open the heater tap and start the engine. Thus, we will ensure the circulation of liquid through the heater radiator and at the same time remove air plugs.Now you can add the missing volume of fluid to the cooling system and you can proceed to the final assembly.

It remains to sequentially install the stove fan case, the radio panel, the glove box case and the shelf in their places. Do not forget to connect the wiring blocks, otherwise you will have to disassemble and reassemble everything. As you can see, replacing the radiator of the VAZ 2107 stove does not cause any difficulties.

A malfunction in the heating system of a domestic car is a fairly common occurrence. And if in the summer you can not pay attention to this, then problems with the stove in winter cause a lot of trouble.

Sometimes the cause of the malfunction can be minor breakdowns, which are eliminated very quickly. However, serious malfunctions in the operation of the stove often occur, which cannot be corrected without dismantling it. Consider in this article how to change the VAZ-2107 stove on your own without the help of specialists.

The work on replacing the stove on the VAZ-2107 is not distinguished by significant difficulties in execution. Despite this, a significant part of the car's torpedo will have to be disassembled. Therefore, before starting work, it is necessary to find out whether it is really necessary to replace or dismantle the heater.

The main indicator for dismantling a heating element is fluid leakage. It is not difficult to determine such a breakdown - in the event of antifreeze leakage, a puddle appears under the front passenger seat mat. Then the radiator needs to be replaced urgently, since when the coolant evaporates, it emits toxic gases that can cause significant harm to human health. The radiator can only be replaced after dismantling the vehicle heater.

The next indicator for removing the heating element is the supply of cold air to the passenger compartment. If the radiator tap is open, and the stove does not heat, then it must be removed and the cause of the breakdown should be looked for. Most often, in this case, the problem is in the tap, clogged pipes or radiator. Only after dismantling the stove can the malfunction be identified and eliminated. There are times when the stove cannot be repaired, then you have to buy a new product.

Let's consider in detail how to remove the stove so as not to damage the plastic parts of the case, fasteners and parts of the heating system. The work of dismantling the product requires care and accuracy from the performer.

First, stock up on all the tools you need. To remove the heater, you will need a Phillips screwdriver, keys for 7 and 10, a container for draining antifreeze, unnecessary pieces of cloth or rags. The fact is that when dismantling the stove, you will have to unscrew the radiator pipes, from which the antifreeze will flow. To prevent toxic liquid from getting on the rugs, you need to cover the bottom of the car well. And also to install a repaired stove, you will need rubber gaskets and antifreeze for topping up.

When you have all the necessary parts in stock, you can proceed directly to removing the VAZ-2107 heater.

To begin with, we proceed to dismantle the stove body in the passenger compartment. Initially, the radio panel is removed, which is attached with self-tapping screws, the glove box is dismantled, the fan is unscrewed.

Now let's move on to the engine compartment. First, all the clamps are removed, with the help of which the pipes and hoses of the heater tap are attached. The hoses are very carefully dismantled so as not to injure your hands on the manifold. Then, with the help of a seven-point head, the fasteners of the stove seal to the car body are unscrewed, and the sealing element is removed from the nozzles. Further work on disassembling the stove is carried out in the passenger compartment. To get to the radiator, it is necessary to remove the cover of the crane adjustment cable and throw off the loop from the lever.

The radiator does not hold anything else; it must be removed and disassembled. Initially, with a 10 key, two fastening bolts are unscrewed, the radiator pipe and the tap are removed. There are rubber seals between the pipe and the radiator, which must be replaced when assembling the heater.

As a result of the manipulations carried out, there is a completely disassembled VAZ-2107 stove. Further actions depend on the purpose for which the product was dismantled.

Before proceeding with the assembly of the product, a visual inspection of the parts of the heating system is carried out. Most often, the cause of a stove malfunction is deposits in the heater tap, due to which coolant does not flow into the radiator. The breakdown is eliminated by replacing the valve with a new product.

A heating problem can also be in a clogged radiator and pipes. In this case, the radiator will need to be flushed. This requires a special liquid or citric acid solution. It is necessary to take three hundred grams of acid per five liters of water and use a compressor to rinse the product. If the actions taken did not give the desired result, namely good throughput of the tubes, then it is necessary to purchase a new product.

Sometimes, when removing the heating element, obvious damage is visible on it or on the pipes. In this case, you will also have to buy a new product. Some craftsmen fix holes by soldering damaged elements, however, such repairs will not give durable results.

For high-quality heating of the passenger compartment, you need to purchase a new radiator. There are two types of stoves on sale for the VAZ-2107. From the factory, the car is equipped with a copper radiator, which has a high heat dissipation, but at the same time has a low service life. Aluminum heaters are considered more reliable, however, their level of heat transfer is much lower. It is up to you which part to purchase, since in this case you have to choose between comfort and practicality. After troubleshooting the heating system or purchasing a new radiator, you can proceed directly to assembling the stove.

Assembly and installation of heating elements on the vehicle is carried out in the reverse order. Initially, you need to assemble the radiator. To do this, the pipes and the heater tap are screwed to it. In doing so, it is important to install new rubber seals in order to avoid repeated leaks of the heating system.

The radiator is installed in the seat, while the tubes are led out through the holes into the engine compartment. A standard seal is installed on the motor side and fixed with bolts. Nipples are put on the tubes and fixed with clamps.

From the side of the passenger compartment, the cable for adjusting the heater tap is fixed and adjusted so that the lever fully opens and closes the tap. Before proceeding with the complete assembly of the torpedo, it is necessary to check the connecting elements of the system for fluid leaks. To do this, open the radiator tap and start the engine. Then you can add antifreeze to the system and assemble the stove body, radio tape recorder, and install the glove compartment. Be sure to connect the wiring so that you do not have to disassemble the heater again.

Even a novice driver can cope with replacing the stove on the seven on his own, the main thing is the desire to work for a positive result. Carry out regular preventive diagnostics of the heating system of the car at least once a year, before the onset of cold weather. This will provide you with comfort in the car at any time of the year.

The best prices and conditions for the purchase of new cars

Inflating the cooling system when replacing antifreeze or repairing any of the components (thermostat, pump, radio, etc.). In this case, you just need to remove the air sample, add cooling liquid and enjoy the heat that appears.
The tap of the heater switches off the motor even in the open position. This is due to the accumulation or the formation of limescale when using water in the quality of the cooling liquid. It is not necessary to change the crane, read it or replace it.
A cold stove may show the grill as the water pump has stopped.If the supply to the heater and the cooling temperature remain cold, and the motor is already warmed up to operating temperature, then you need to replace it.
Stove storage is one of the most common problems. It may be due to the formation of scale or the effect of getting into the antifreeze oil. The stove can be removed and washed thoroughly. After that, she will still serve the car owner.
If both the flue, connected with the stove is warm, and the heater is cold, then it is possible that the rubber heater has come out of the heating system in the radio. It is displaced from the bedside, creating a direct path from the inlet pipe to the drain. Then the heating radiator must be changed.

The anti-freeze leak is running through the stove valve. It can be replaced without using the other radio.
The reason for the provision of anti-freeze may be a bursting pipe. Replacing it will also not provide you with serious chills.
The heater did not sustain any pressure in the heating system, and there was a leak. Only removing the radiator will show whether it can be repaired or whether a new heat exchanger can be installed.

In the engine compartment, it is necessary to loosen the two hooks that secure the hoses to the oven pipes. When removing the hoses, a little anti-freeze will leak.

Here, you must also unscrew the rubber seal and remove it.

The rest of the operations are carried out in the cabin. Start watching from the panel of the radio. Usually it is wrapped in two samples.

Use a 7 mm wrench or a screwdriver to detach the cable from the oven tap.

On the skin of the fan, there are four brackets that can be removed using a screwdriver.

The skins slide down and slide to the pedals. The power supply to the electric motor will not completely remove the skin.

One free space will be enough to gently remove the radiator from the pannel.

Heating system VAZ 2107

The most common cause of a heating system malfunction is the radiator.

It may not work for two reasons:

Leakage of coolant due to corrosive processes, physical damage or normal wear and tear. A leaking unit is indicated by a puddle of coolant that appears at the feet of the front passenger or driver.
The obstruction of the inner tubes prevents free circulation of air through the unit. A sign that the tubes are clogged is cold or lukewarm air coming in. The reason for clogging is the deposition of oxidation products on the tubes or the ingress of various debris and all the same oxidation products.

Heat exchanger device diagram

We must make sure that it is the heat exchanger that is flowing. The cause of the leak may be a pipe or a heater tap.You can try to fix the leak by soldering if a copper-brass apparatus is installed on the machine. But this does not guarantee that after a while the coolant leak will not resume.

In the case of a blockage, you can also try to remedy the situation by flushing the heating system with chemicals. But this is a temporary measure. In both the first and second cases, it is necessary to replace the VAZ 2107 heater radiator.

There is a large selection of heat exchangers in the automotive market, you need to be able to understand them in order to choose the most suitable one in terms of price and quality. You can buy a cheap unit within 500 rubles of an unknown manufacturer, but no one can guarantee that it will last a long time.

New heat exchanger Luzar

There are also expensive options. If funds allow, you can purchase a high quality copper-brass heater radiator with a guarantee for 3000 rubles. But alternative options for purchasing high-quality heat exchangers at an affordable price from well-known brands are also possible. You can cite several types of units from well-known manufacturers that are suitable for the VAZ 2107.

Aluminum units are made by the following manufacturers:

domestic - Avtovaz, Pekar, Luzar and others;
foreign: Germany - Oberkraft, Finland - Finord, Hungary - Extra;
SHAAZ and SB OR produce copper radiators.

Buying a product from a well-known manufacturer, you can still run into a fake. Therefore, when buying, you should know what you need to pay attention to (the author of the video is AutoAndElectronics).

When choosing a new unit, you need to consider the following factors:

you should not strive to buy a unit that is too cheap, most likely, its quality will be low;
when buying, a certificate should be required from the seller, this will reduce the likelihood of buying a counterfeit;
you need to pay attention to the honeycomb, for a good radiator they are located close to each other;
it is important to have swirlers - plastic spirals that increase heat transfer during heater operation.

A high-quality radiator will serve for a long time, and the stove will warm up the interior well.

Replacing the heat exchanger consists of two stages: removing the old unit and installing a new unit.

For the procedure, the following tools and materials should be prepared:

Phillips screwdriver
a set of keys;
sealant;
container for draining the working fluid, you can use a 5-liter water bottle;
new heat exchanger;
clean rags.

In addition, you need to stock up on coolant and two rubber pads.

Before removing the stove radiator on the VAZ 2107, you need to drain the antifreeze from the heating system. To do this, it is better to install the machine on an overpass, inspection groove or other device that will allow you to get to the drain plug. To make the glass fluid faster, it is advisable to warm up the engine.

The dismantling procedure consists of the following steps:

To drain the antifreeze, unscrew the cap on the radiator and expansion tank.
Going down under the car, you need to substitute the container under the cylinder block and, by unscrewing the drain plug, drain the liquid from the system. When the coolant is completely drained, you can screw the plug back.
In the engine compartment, use a screwdriver to loosen the fastening of the clamps holding the heating system pipes. Then we disconnect both hoses and pipes of the stove tap. Wipe off the spilled liquid with a rag.
Further work is performed in the salon. It is necessary to dismantle the shelf of the radio tape recorder. For this, two screws are unscrewed.
After dismantling the shelf, the heater tap will be available. Use the key to unscrew the cable mount and remove the free end to the side.
The heater casing consists of two parts, which are held together by two steel brackets. We unfasten the staples and remove the lower part of the case.
The radiator can now be carefully pulled out together with the heater tap.
Then we unscrew the stove tap and inspect the gasket. If it is unusable, then we replace it with a new one.
Having unscrewed two bolts of the inlet pipe, we inspect the gasket.You should also check the performance of the crane and replace it if it is faulty.

To avoid leaks in the near future, you should replace the pipes and gaskets with new products.

Replacing and installing a VAZ 2107 heating radiator is performed in the reverse order:

After applying sealant to the gasket, you need to connect the inlet pipe to the tap.
Next, the tap is screwed to the heat exchanger. It is also necessary to install a new rubber gasket between them. After installing the cable, it must be adjusted so that the valve opens and closes completely with the control lever.
Now we install the new device in its original place. Having installed the gasket, we fasten the unit.
Then we attach the hoses and tighten the fastening clamps.
After checking that the plug on the drain hole is tightened, pour antifreeze into the system. When filling, the heater tap must be open so that coolant gets into the heat exchanger.
Next, we tighten the caps on the heat exchanger and expansion tank.

After installing the unit, you need to start the engine and let it run until it reaches operating temperature. Without stopping the engine, check all connections for leaks. You also need to check the coolant level. If it does not meet the norm, top up to the required level.

If there are no complaints about the operation of the heating system, we connect the cable to the heater tap, fix the casing with staples. Reinstall the radio shelf.

In order for the radiator to serve for a long time, you need to follow a number of rules:

When buying, you should not save money and buy a low-quality unit. You should pay attention to the material of manufacture and the manufacturer.
Only high-quality liquids need to be poured into the system. Do not pour water and mix antifreeze with antifreeze. No grease or fuel must enter the system.
When it is idle in the warm season, when the heater is not used, at least twice a month you need to open the stove tap so that the liquid enters the radiator. Thus, the unit will not dry out and the heater tap will not stick.

If you carefully operate the heating system and fill in high-quality antifreeze or antifreeze, then its components will last for many years.

This video clearly demonstrates how to replace the heat exchanger of the heating system with a VAZ 2107 (the author of the video is Auto Fix Info).

Replacing the heater VAZ 2107

As a rule, sooner or later, all VAZ owners are faced with the problem of the interior stove operation. And replacing the heater in the VAZ 2107 is the only right solution to avoid hypothermia in the winter season for the driver and his passengers.
Indeed, replacing a VAZ 2107 heater or upgrading it can greatly enhance its work, and the air in the cabin will always be warm.

If the heater does not work properly, there is always a kind of hum that does not go away with time. Hum is not a reason to replace the entire heater.
It will be enough just to change the fan and that's it. Of course, you can use the services of companies that carry out work of this level, or you can do everything yourself.
Moreover, this type of work does not differ in any particular complexity. In modern VAZ models, such as "ten" or "tag", replacing the fan is more problematic than on older models.
This is explained by a more ramified heating and ventilation system on modern VAZ models. The general process of work on replacing a fan can be divided into three parts: dismantling, repair and assembly.
And if everything is done correctly, a complete replacement of the heater with a VAZ 2107 will no longer be needed.

Parsing the fan of the Vaz stove

We begin the process of disassembling the fan:

we prepare a workplace for the car;
the stove lever, the lowest, is moved to the extreme right position from the driver;
the instrument panel is dismantled;
the glove compartment and the shelf, which is located below, are removed;
the center console with a radio tape recorder is also dismantled;
with a 7 key, the thrust that controls the damper is unscrewed and removed;

Throttle control rod

with a 10 key, unscrew the nut that fixes the heater radiator casing;
the nut behind the glove compartment is also unscrewed (it fixes the right air outlet);
a screwdriver disconnects the air outlet, which is held on the radiator casing of the car's heating system;
the fan casing is also dismantled, and then the fan itself;
the rubber gaskets located on the casing body are removed;
the red wire of the positive charge is disconnected;
a screwdriver removes the retaining ring located on the drive shaft;
the fan impellers are also removed, and then the shaft adjusting rings.

At this stage, the disassembly of the fan can be called complete. To ensure that all work goes smoothly, you should use the right tools.
The screwdriver, with which the radiator casing is removed, must be with a wide blade, and an extension must be provided for the keys if the nuts are too deep.
The 2107 heater, the replacement of which will be discussed below, has many parts and connections available that are difficult to attach.

Car fan repair

On the VAZ 2107, the heater fan, the replacement of which is presented below, implies the replacement of the old part with a new one. After removing the fan, you should start repairing it.
You can use a different fan, more powerful, although this is not recommended... Indeed, in this case, it will be necessary to modernize the entire heating system of the car, otherwise it will quickly become unusable.
The repair itself does not take much time, since the main actions are associated with dismantling and assembly.
Repair involves replacing the old fan with a new one. In some cases, the impeller or the electric motor of the heater is changed.

On the VAZ 2107, the replacement of the heater fan continues. The next stage of working with the fan is its assembly.
Begin:

we install the adjusting rings, as well as the fan impeller on the shaft;
retaining rings are also installed;
we connect a positive charge to the system;
after that, the fan is installed in place, and the fastening is carried out using spring-type brackets;
connect the radio;
then we install the glove compartment, dashboard and storage shelf.

Replacing the heater fan vaz 2107

Replacing the heater fan with a VAZ 2107 is not complete without some secrets that you need to know... Still, after all, replacing the fan heater for a VAZ 2107 car is not a simple process, but a complicated one and requires careful attention.

after disassembling the stove, everything must be carefully checked (for example, how the interior heating system blows);
all parts and connections of the heating system must be sealed so that water, dirt and dust do not enter through them.

Often the cause of the stove failure is the heater tap. Before the arrival of cold weather, even in autumn or even summer, it is advisable to inspect it.
And if a problem is found, in the form of coolant leaks on the mat in front of the driver's seat or other symptoms, then the tap will need to be replaced.
So:

unclench the clamps on the heater hoses;
we remove the hoses sitting on the nozzles;
unscrew the two screws with a 7 key;
we find the seal and remove it from the rubber bands;

go to the salon and unscrew the dashboard screws;
unscrew the nut of the air outlet bracket;
remove the latches;
take out the right air outlet;
unscrew the bolts fixing the cable on the stove tap (use a 7 key);
remove the nuts securing the heater tap, fixing it to the radiator;

You should know that the stove tap is held on two bolts. They are screwed into special nuts called mortgages.
When parsing, you need to be extremely careful so that the lower nut does not fall out. If this does happen, pull the heater housing down and remove the nut.

If the problem lies in the Vaz 2107 stove itself, then it is recommended to replace it. It is advisable to watch this video before work.

two rubber gaskets for the pipes and the heater tap;

coolant;

tool kits.

Before starting work, it is necessary to thoroughly flush the engine compartment. The car must be parked on a level surface and put on the handbrake.
We are waiting for the engine to cool down, after which we clean the fasteners and threaded connections with a metal brush, special grease or just kerosene.
So:

open the engine compartment;

we loosen all the clamps on the hoses through which the coolant flows;

remove the hoses from the nozzles;

we unscrew the two self-tapping screws that attach the seal to the car body;

remove the seal;

we find the thrust of the heater tap drive and disconnect it;

remove the stove fan cover;

we remove the pipes from the holes so that the stove comes out easily;

take a 10 spanner wrench and unscrew two bolts (they fix the coolant outlet pipe);

Photo of the engine and stove circuit

we also remove the rubber gasket, which is located between the radiator of the stove and the sealing connection of the pipe;

we replace it with a new one;

remove the faucet;

install everything in reverse order.

Video (click to play).

Everything that is written above is done by hand. This step-by-step instruction is a unique opportunity for novice motorists to learn how to carry out self-repairs.
Thus, it will not only become possible to carry out repairs at any time, but also save a lot. As you know, the price for services of this kind is high today.