Replacing the heater valve on a VAZ-2104-2107

As you know, all repair work, including the repair of the VAZ 2107, begins with preparatory manipulations. These include washing the car, including the engine compartment, cleaning threaded connections from dirt, as well as installing the car on an overpass. Accurate diagnosis is also important. In particular, it is not difficult to determine that the heater valve needs to be replaced. Pools of coolant indicate a leak in the seal of this unit. They will be visible on the floor covering at the front passenger's feet. In general, replacing this unit is part of an operation such as stove repair. By the way, if the heater tap is leaking, it cannot be repaired - only replaced. In order for the work to be completed successfully, you will need a new heater valve for the VAZ 2107, and in addition - two new rubber gaskets for the heater valve and a worm clamp with a diameter of sixteen to twenty-three millimeters, as well as a sufficient amount of coolant.

Procedure for replacing the heater tap

You should know that replacing the heater valve must be done with a cold engine. This will avoid all sorts of troubles associated with heated coolant. It is clear that any manipulation associated with the assembly and disassembly of automotive components must be carried out in a certain sequence. This equally applies to work such as replacing silent blocks and replacing the heater tap.

Removal of this tap is carried out in the following order:

• after the car is prepared for repair work, it is necessary to gain access to the engine compartment,
• in the engine compartment, use a screwdriver to loosen the clamp securing the supply hose, after which the hose is removed from the lower pipe of the heater valve,
• The lower lever of the ventilation system control unit is set to the extreme right position. This closes the air dampers on the side air ducts,
• remove the glove box body and storage shelf,
• The nut securing the right air duct to the body is unscrewed. This is done using a 10mm socket wrench. After which the air duct is removed from the stud and disconnected from the side deflector of the dashboard,
• you should loosen the bolt securing the heating tap drive rod using a 7mm socket wrench,
• the rod shell is released from under the bracket, after which the rod tip is removed from the tap of the interior heater lever,
• Unscrew the two bolts securing the tap to the stove radiator. To do this, you will need a 10mm spanner. At this stage, you will also need to secure the lower cage nut so that it does not fall out of the socket. For these purposes, you can use plasticine,
• Now, in fact, you have reached the place where the heater tap is located. At this stage, it is removed - its pipe is removed from the seal, which is located in the partition of the engine compartment. There is also a rubber gasket here - it plays the role of a seal at the junction of the flanges of the heater valve and the stove radiator. During removal, some coolant may leak out of the heater core. To collect it you will need a rag,
• Unscrew the two bolts securing the pipe to the heater tap. To do this, use a key of 10,
• the pipe is removed. The place where the heater valve (its flange) and the pipe connect is also sealed with a rubber gasket.

At this point, the work on disassembling the unit is completed. You should begin installing the heater tap. This is done in the following sequence:

• removed rubber gaskets must be replaced with new ones,
• in the reverse order to that described above, the heater tap is installed,
• the heater valve control lever moves to the extreme right position,
• it is necessary to fill in the missing amount of coolant,
• After the cooling system is filled with liquid, you need to check the tightness of the connections between the heater tap and the heater radiator, as well as the hose. If necessary, parts should be tightened,
• Then all parts are assembled in reverse order.

It should be noted that these works, as well as adjusting the valves, can be performed by you yourself or with the help of car service specialists.

Replacing the heater valve on a VAZ: video instructions

For a VAZ 2107, replacing the heater valve is one of the most important repairs. After all, this part is responsible for regulating the air temperature inside the car. The use of a crane also depends on the car model. For example, the VAZ 2108 is also equipped with a special damper for air supply, and on the VAZ 2110 and higher models there is no valve at all. On a VAZ 2107, the heater valve, the replacement of which will be presented step by step in this article, performs the function of supplying engine coolant to the radiator. This helps warm the air inside the car.

How to turn on the stove

The stove on the VAZ 2107 has: in fact, a toggle switch for the rotation speed of the stove fan, and three sliders - we’ll dwell on them in a little more detail. Upper: position all the way to the right - fully open the stove tap (maximum temperature); Middle: to the right all the way - air intake from the street, to the left - from the cabin. As a rule, it heats up faster when taking air from the street. Lower: extreme left position – heated side windows, right – heated windshield.

With this position of the sliders it will be warm.

If the stove shows no signs of life, it would be a good idea to check the fuses - there is an electrical diagram in the book for the car. If this is too difficult for you, you can go to an auto electrician.

Can the stove break?

Nothing lasts forever, and the stove on a VAZ 2107 can also fail. Let's briefly consider the main causes of breakdowns:

- on a new car:

1 – Electrical fault: fuses, heater motor, switch fault. 2 – Air lock (occurs when replacing coolant).

- on an old car:

There are a few more reasons here. With an old car, the troubles described above and several other problems can occur.

1 – The stove radiator is clogged (the honeycomb is clogged). 2 – Thermostat malfunction. 3 – Malfunction of the liquid supply valve.

What is needed to fix a malfunctioning stove?

If you repair the car yourself, then some problems can be fixed yourself. If not, go to the service station. If the heater does not turn, check the fuses, heater switch. Please note: after our “Kulibin Homegrown”, the following may happen - the stove will only work when the ignition is on - do not forget about this.

If there is no heat, the problems are as follows: thermostat, air lock, heater valve. If the stove tap opening slider moves heavily, try opening the tap manually - it may be stuck. There is a faucet on the passenger side next to the heater radiator - try opening it. I want to disappoint you: the standard taps are of disgusting quality, and it may happen that the tap turns but does not open - then the only option is to replace the tap.

An air lock occurs when replacing the coolant. The solution is the following: place the car on a flat surface and let out the air.

Thermostat malfunction. In this case, the interior heats up very slowly when the engine is cold, but everything is fine while driving. The thermostat may be faulty and causing fluid to circulate in a large circle. Without going into details, I will say that this option is bad both for the engine and for you, in terms of heat. It is better to replace the thermostat at the station, or at least get advice.

How does the heater valve system work?

The fact is that, as you know, antifreeze is used to cool the engine. This is a special liquid that the car owner pours into the radiator. This liquid tends to heat up and thereby reduce the engine temperature. It is this already hot liquid that is sent to the interior heater radiator and a gradual heating of the air is observed. But this only happens when the heater tap is open. If it is closed, the air no longer becomes warm. After all, a car radiator is connected not only to the engine cooling system, but also to the fan. And as you know, it takes in cold air from outside, which passes through the radiator and heats up only if there is a supply of antifreeze. The more the heater valve is open, the more the air in the cabin will heat up and vice versa. This principle is still used on the “sevens” today. But later models, starting with the VAZ 2108, also have a damper that automatically regulates the temperature. The faucet in this case works as described above, and the damper determines the direction of the air. When it is open, the air flows completely into the radiator, where the tap is open. When the damper is closed, air no longer flows through the radiator. A combined option is often used, when part of the air comes from outside and the other from the radiator. As for controlling the damper, this occurs simultaneously with the control of the tap.

Where is the heater valve on the VAZ 2114

The place where the faucet of the stove is located on a VAZ 2114 or on a VAZ 2109

In order to see the location of the heating valve on the VAZ 2114, it is enough to remove the right side trim at the bottom under the center console at the feet of the front passenger . You will see it on the partition with the engine compartment, there are 2 more pipes that go to it. In some cases, in order to understand the nature of the breakdown of the heater tap on the Samara, you can also crawl up from the driver’s side (after first removing the side plastic cover from the dashboard and removing the carpet). But keep in mind that when dismantling you will also need to find its location in the engine compartment, under the steering rack . By the way, it’s more convenient to get there from underneath the car, since you’ll have to unscrew a couple of nuts from the studs securing it (located near the exhaust pipe, in the area of ​​the oxygen sensor) with a “10” key and remove the two supply pipes.

The new faucet of the VAZ stove is leaking from under the damper

How to understand that the faucet is leaking

The main symptom that the heater tap is leaking is a characteristic smell in the cabin and a puddle under the front passenger's rug. It is true that a similar situation can arise in the event of a leak in the heater radiator. So if you see water under the rug, check these two elements of the cooling system first. As a rule, traces of antifreeze leakage on the faucet are visible to the naked eye; you just need to remove the plastic cover. Also, in some cases, a leak from a faucet can be observed visually, but to do this you will first have to get close to it and then move the valve by the cable (this situation can even arise on a new but defective part). When the problem with the faucet is only at an early stage, then a symptom that it is time to replace it is poor performance of the heater (when the damper is fully open, it blows barely warm or vice versa). This situation occurs if the valve is stuck in one position or is leaking (not closing enough).

The stove doesn't heat well

Car owners begin to notice that the stove is not heating well only with the arrival of cold weather, although the reasons for poor performance arise much earlier. Most often, the stove in a car heats poorly due to: airing, a faulty pump, a clogged radiator and cabin filter Read more

Removing the radiator of the VAZ 2114 stove

Replacing the VAZ 2114 heater radiator occurs if the old radiator leaks. If it is intact, you may need to remove the heater core to clean it from dirt. More details

Stove

The radiator of a car's interior heater is called a stove. Designed for heating inside the car and is part of the small engine cooling circle. When functioning properly, the temperature should not fall below +16 even at -25°C. Main fault.. Read more

What is the heater tap for?

The interior heating and engine cooling systems are interconnected. A radiator installed in the passenger compartment is connected to the small circuit of the cooling system. A tap is attached to its inlet, which shuts off the supply of hot antifreeze. The stove consists of several elements:

1. Heater radiator.
2. Electric fan.
3. Fan activation button.
4. Resistance block for adjusting the rotation speed.
5. Damper control levers.

If there were no heater valve, hot antifreeze would constantly circulate through the radiator. In this case, the temperature in the cabin would constantly be high.

But it is the tap that prevents hot liquid from entering the cabin. Using the controls located in the panel beard, the supply of hot antifreeze is turned on and off. The faucet is fixed directly to the radiator using two bolts. A rubber ring is installed between the valve body and the radiator. The axis that drives the mechanism that shuts off the fluid supply has a small lever. A rigid cable is attached to it. Most drivers completely open the heater tap in the winter and close it in the summer. Consequently, for several months it is not touched at all. That's why it jams.

Stove design

The stove consists of the following parts:

1. Heater, a stove radiator is installed in it (indicated by the number 5 in the figure), it heats the air penetrating from outside;
2. The stove fan, or motor (indicated by the number 14 in the figure), it pumps a flow of warm air into the cabin, it is mounted in a special casing (indicated by the number 16 in the figure) on elastic cushions that dampen its vibration;
3. The stove control system is a fan button (indicated by the number 18 in the figure), three control knobs for heating modes - blowing onto the windows, taking air from the cabin or from the street, and opening and closing the stove tap.

Typical breakdowns

The VAZ-2107 heater valve is replaced if the following breakdowns occur:

1. Excessive wear of seals and gaskets.
2. Destruction of the device body.
3. Presence of scale on the inner surface.
4. Gaskets and seals work normally as long as the cooling system is filled with high-quality antifreeze and its level is normal.
5. Scale forms when using water instead of special liquids.

When the housing is destroyed, a leak appears, it can be identified by the following signs:

1. Oily drops appear on the front and side windows.
2. Reduced antifreeze level in the tank.
3. Wet spots or puddles appear on the floor at the passenger's feet.

If the heater valve is leaking, try using a “10” wrench to slightly tighten the bolts. If you cannot get rid of the leak, it is necessary to replace the VAZ-2107 heater valve. Please note that antifreeze contains a large number of harmful components, so it is not advisable to delay repairs. If the tap on a car does not switch, there are several reasons for this:

1. If the adjustment lever moves without resistance, then most likely the drive cable has come loose from the clamps.
2. When the tap becomes clogged, the lever moves very slowly.

There is no point in trying to repair this device; it is easier to install a new one. On a VAZ-2107 car, it is not advisable to repair the heater valve - the cost of a new one is quite low. Some motorists, instead of purchasing a new faucet every year, install a water faucet. And twice a year they open and close it. Not very convenient, but reliable and durable.

Let's sum it up

Timely diagnostics, preventive cleaning and inspection of elements of the vehicle’s heating system is a guarantee of high-quality operation of the stove. Experts recommend checking the heating system on the VAZ-2107 at least twice a year - in autumn and spring. Any driver can handle preventive cleaning and adjustments of the stove on his own; to do this, you just need to understand the structure of the heating and ventilation system of the cabin and the principle of its operation. The easiest way to do this is to always have a visual instruction manual for your car nearby.

Don’t put off any further work to improve the functioning of your car’s heating system. Proper care will ensure uninterrupted operation of the heater and a comfortable temperature in the interior at any time of the year.

Tools for repairs

On a VAZ-2107 car, repairs can be performed using standard tools. You will need to have:

1. Several wrenches - “7”, “8”, “10”.
2. Phillips and flathead screwdrivers.
3. Pliers.
4. New stove faucet.

Please note that it is better to buy a ceramic faucet rather than a cheap one installed by default. Ceramic ones have a much longer service life, parts do not wear out as much, and scale and dirt do not form on the surface. Buy a VAZ-2107 heater faucet in advance; the price of a ceramic one is no more than 500 rubles. But if you wish, you can even install a water tap in the engine compartment or under the glove compartment.

Heating system modification

One of the controversial decisions is to move the heating tap under the hood and replace it with a regular household one. Before you dare to use this know-how, you should weigh the pros and cons. One of the advantages of this action is that you do not have to worry about leakage into the cabin . In general, the service life of the parts increases, but in order to open and close the tap, you need to run to the hood or reach into your feet and turn the valve. Or, in the summer, drive with the air flow damper into the cabin closed.

And yet, perhaps you are one of those for whom this will be the optimal solution that will help you not bother with repairing the stove tap. For clarity of removal and upgrading, watch the video instructions:

How to remove the heater valve VAZ

Replacing the faucet with a water one and moving it under the hood
As you can see, despite the certain efforts required to repair or replace the faucet of the VAZ 2114 stove, it is still better to do this before the interior is filled with antifreeze. At the moment, heating taps are presented on the markets in three main types: standard, ball and ceramic. But in fact, of all those available, there are no normal ones that you can install once and forget about the problem. Plastic ones etch, ceramics melt and run, the ball one is also not without its drawbacks, but is still more reliable compared to others. Remember that preventative repairs of parts of your car, in particular the heater valve, can prevent other, significant problems.

Preparing for repairs

First of all, it is necessary to install the VAZ-2107 on an inclined surface so that the front part is lower than the rear. In this case, you will completely drain the liquid from the cooling system. To do this, you need to place a container of at least 10 liters under the engine, then unscrew the plug with a key to “13”. It is also necessary to drain the remaining fluid from the radiator.

Carry out all work only on a cooled engine. Otherwise, you can get severe burns. The liquid must be drained with the stove tap open. But if you can’t open it, you need to loosen the lower pipe and drain the liquid from it.

Why do breakdowns occur?

As noted above, the shut-off valves of the heater are a very vulnerable element of the VAZ-2109. If it fails, then it will not be possible to ignore the breakdown. First of all, on the floor, at the base of the passenger seat in the first row, a puddle forms under the carpet. In addition, leaking antifreeze emits a very characteristic odor, which should also suggest a malfunction of the stove.

Leakage occurs for three main reasons:

• use of low-quality cranes by a domestic automaker;
• oxidation;
• mechanical destruction.

The Volzhsky plant supplies its products with membrane-type locking fittings. This system has one inherent drawback - poor tightness. Even with careful use, such taps break very quickly.

Carrying out replacement

The algorithm for performing the work is as follows:

1. Unscrew the casing that secures the control cable.
2. Remove the end of the cable from the stove faucet.
3. Unscrew the nuts that secure the valve body to the radiator. Please note that antifreeze may leak out at this point, so place a dry cloth on the floor.
4. Remove the old faucet.
5. Remove the adapter that holds the pipe supplying hot antifreeze.
6. Replace all rubber gaskets that are on the faucet.
7. Install the adapter on the new device.
8. Secure the valve to the radiator by tightening the mounting bolts.
9. Install the control cable and ensure that the valve opens and closes completely when moving the lever.

Replacement procedure

If you have been using the car, be sure to let its power plant cool down - otherwise the coolant will be very hot, and this is dangerous.

The car must be placed on a ramp or pit, since you will need access to its bottom.

Before changing the shut-off valves discussed in this article, set the stove regulator to the extreme right position, that is, to maximum heating. Only in this case will you be able to completely drain the coolant from the radiator.

When the preparation is complete, unscrew the cap of the distribution tank slightly and place a bucket under the car to collect the leaking antifreeze. The radiator is the first to be freed from it - it has a special plug. Next, drain the liquid from the cylinder block and hoses leading to the tap.

From the hood side, loosen the pipes that go directly to the tap. The clamps on them often rust, and therefore it is recommended to treat them with VD-40 before unwinding. The screws are unscrewed with a flat screwdriver. Go to the salon. Here, remove the side trims of the center console. They are held in place by screws, which can be unscrewed using a Phillips screwdriver.

Actually, the heater valve is located on the front passenger side. It has two pipes fixed with clamps. Carefully loosen the latter and very carefully remove the hoses (there is a risk that there is still antifreeze left in them).

Now you need to release the tap - to do this, just unscrew the three 10 mm nuts. Before this, the drive cable is disconnected from it. All that remains is to dismantle the damaged unit and install a working one in its place.

Reassemble everything in reverse order and check how the heater works, and also make sure that everything is sealed in the places where the pipes are attached.

What is a VAZ 2107 stove valve?

To heat the interior of the VAZ 2107, the heat of antifreeze circulating in the engine cooling system is used. To extract heat, a heater radiator is used, which is connected to the cooling system by two hoses. The heater fan forces a stream of air through the radiator, which heats up and enters the passenger compartment. However, heated air is not always necessary in the cabin. If you turn on the glass blowing in the summer to prevent them from fogging up when it rains, heating the air will be unnecessary. To prevent air heating, the VAZ 2107 heater valve is included in the heating system circuit, which prevents hot antifreeze from entering the heater radiator. Then the air supplied by the fan does not heat up and the interior is not heated during the warm season.

The valve is secured to the radiator with two bolts, and a rubber gasket is used to seal the connection. The working part of the crane is connected via a rigid control cable to a lever on the front panel of the machine. By moving the lever, you can open and close the tap, regulating the temperature of the air entering the car interior.

Usually in winter the faucet of the VAZ 2107 stove is open, and in summer it is completely closed.

Purpose and principle of operation of the stove tap

The stove faucet has a simple purpose - switching modes between “summer” and “winter”. In the summer, the heater is not used, so supplying hot water to the heater radiator would make it impossible to stay in the cabin. In winter, hot air in the cabin of the seven arises due to the supply of heated coolant to the heater radiator.

The VAZ 2107 uses two radiators - one is the main one, which is designed to cool the engine, and the second heater is used mainly in cold weather. The heater radiator, which is located in the passenger compartment, also cools the engine slightly when the fan is turned on, while ensuring the flow of warm air into the car interior.

The switch in question has a smooth adjustment from the “closed” position to “fully open”. The valve is located directly inside the VAZ 2107 car on the supply pipeline, and is controlled by a steel cable connected to a mechanical regulator on the instrument panel.

Frequent device malfunctions

Car owners remember the device when malfunctions occur. There are two main malfunctions of the device that require replacement of the switch, as well as additional ones. In the event of additional damage, the integrity of the switch can be restored without the need to replace it. Let's consider the main types of malfunctions of the device in question:

• The occurrence of antifreeze leaks is one of the most popular types of breakdowns on classic Zhiguli models, including the VAZ 2107. A malfunction appears when a puddle of antifreeze begins to appear in the car interior under the driver’s feet. Moreover, to do this, it is not necessary to wait for this puddle to form, because as soon as the faucet begins to leak, a corresponding pungent odor appears in the cabin. If this part leaks, it must be replaced, since it cannot be repaired.
• A jammed heater radiator tap occurs when it is impossible to move the switch. The reason for its jamming is the formation of corrosion processes inside. Corrosion occurs quite quickly, and 5-6 months is enough time for the development of such a process. If a part is jammed, you can open it or, conversely, close it with pliers. In this case, keep in mind that you can collapse the rotary rod or cause a leak. If the device jams, it is also recommended to replace it as quickly as possible.

In addition to the main ones, there are additional types of malfunctions of heating taps on the VAZ 2107:

1. A leak forms from under a pipe or clamp. The pipe and clamp are the elements that are connected to the stove tap. With prolonged use of the car, the fastening of the clamp weakens, so a leak begins to form from the pipe. A simple action will help eliminate such damage - tightening the clamp or replacing it.
2. Inability to close or open the tap, which is directly related to internal blockage of the device. The reasons for the development of such consequences are known - low-quality antifreeze, contaminants entering the cooling system, as well as corrosive deposits. To eliminate this type of breakdown, it is necessary to remove the part and clean it.
3. The drive cable used to open and close the tap is broken. In case of this type of breakdown, you will need to replace the cable and continue operating the car with a working interior heating system.

The part in question has enough signs of failure, so before making serious decisions, diagnostic procedures should be carried out to identify the exact cause of the malfunction.

Types of stove taps

If, from the above situations, your seven has a malfunction that requires replacing the heater tap, then before doing this, you need to figure out the choice of the optimal device. It is difficult to say how long the standard switch on a VAZ 2107 will last, but reviews from owners show that the need to replace it most often arises after 3-5 years of vehicle operation. In order for the replacement device to last longer, you will need a competent approach to its selection. Which heater valve is better to install on the VAZ 2107, we will look into it in detail, analyzing all the options.

Heater ball valve

From the factory, membrane-type devices are installed on the seven, which have a short service life. If you want to increase the service life of the switch, it is recommended to replace the standard diaphragm valve with a ball valve. This option is more reliable compared to a membrane device, since a steel sphere is used in the switch design.

The sphere is connected to a rod, through which the structure is activated. It opens by moving the rod in the form of an elongated handle 90 degrees. The disadvantage of the device is that although the sphere is made of stainless steel, corrosive deposits appear on it. Typically, such devices last 1.5-2 times longer than membrane ones.

Diaphragm type tap

Membrane-type devices are installed on all seven injection and carburetor types. It is not known why manufacturers installed cranes of this type on sevens, but this option is the most unreliable. In the best case scenario, such a part will last no more than 5 years.

Membrane-type devices cost about 300 rubles, and the choice of such a device is justified only in one case, if the owner does not want to spend money and make adjustments to the cooling system of a VAZ 2107 car. Experts recommend installing such valves as a last resort, if nothing more suitable can be found managed.

Ceramic faucet

The best solution for those who do not want to replace standard devices every 2-3 years. To modernize the VAZ 2107 stove, it is recommended to install a heater valve with a ceramic locking element. The advantages of ceramics are obvious - long service life, reliability, efficiency. They have only one drawback - the price, which is 3-4 times higher than membrane switches.

Water tap

If you want to “kill two birds with one stone,” that is, save money and at the same time get a durable tap, then it is recommended to give preference to a water tap with a butterfly or lamb-shaped valve. The cost of such devices is low, and they do not last as long as ceramic ones, but an order of magnitude longer than membrane ones. To install the switch in the system, you will need connecting hoses with clamps. There is only one drawback to using such devices - the need to switch modes manually.

Replacement instructions

Replacing the faucet on a VAZ 2107, as on other cars, requires draining the fluid from the system. To do this, you should initially wait until the liquid has cooled, and then place the container and unscrew the plug, waiting for the system to empty. Further replacement of the VAZ 2107 heater valve is carried out in the following way:

1. Under the hood, loosen the clamps of the hoses going into the passenger compartment and remove them.
2. Using a “10” key, you need to unscrew the bolts that secure the partition with the pipes going into the cabin.
3. After this, move it into the cabin and loosen the cable that is connected to the switch. To separate the cable from the tap, you need to loosen the nut with an open-end wrench set to “10”, and then disconnect the tip.
4. Remove the tap from its location by first unscrewing the two fastening nuts. These nuts secure the device to the heater radiator.
5. Dismantle the device, and then unscrew the adapter on which the hose is attached. When installing a new tap on the seven, you will need to replace the rubber seals.

Malfunctions of the heater valve VAZ 2107

The main cause of malfunction of the heater valve is wear of the seals and gaskets. The result is a drop in the level of antifreeze in the cooling system and overheating of the engine.

An antifreeze leak from the heater tap can be detected by the appearance of drops or puddles in the passenger compartment near the passenger's feet. The leak also manifests itself as condensation of antifreeze on the windows in the form of an oily substance. The latter does not happen if water is poured into the cooling system instead of antifreeze. Then you should pay attention to another sign of a coolant leak - a drop in its level in the expansion tank.

If there is a coolant leak in the area of ​​the heater tap, you should try to tighten the bolts and check the tightness of the fastening. If the leak does not stop, replacement or repair of the VAZ 2107 heater valve is necessary.

Note: Antifreeze contains components that are harmful to health, so leaks must be repaired as quickly as possible.

The faucet of the VAZ 2107 stove may become clogged and stop switching. This malfunction can be eliminated by cleaning or replacing the faucet. It is still impossible to switch the tap when the control cable has been disconnected from it. The problem is easily fixed: the cable must be put in place and secured.

Determining why the heater tap does not switch is simple:

• if the cable falls off, the adjusting lever moves easily without encountering resistance;
• If the faucet is clogged and jammed, the lever begins to move very tightly and jam.

Repairing the VAZ 2107 heater tap consists only of cleaning it in case of clogging. In other cases it needs to be changed.

Here are some tips for the stove tap:

Types of fuel taps

Since the fuel tap on the VAZ 2107 is an extremely short-lived device, after two years of operation of the tap the driver will inevitably face the question of replacing it. However, fuel taps vary in both reliability and design. Therefore, it is worth understanding them in more detail.

Diaphragm type tap

A membrane-type valve was installed on all “sevens” that ever came off the assembly line. It is very easy to find this crane for sale: it is available in almost every spare parts store. This part is inexpensive - only 300 rubles or so.

But the car owner should not be tempted by the low cost of a membrane tap, since it is very unreliable. And literally in two or three years the driver will again see coolant leaks in the cabin. Therefore, you should set the diaphragm fuel valve to “seven” only in one case: if the car enthusiast has not found anything more suitable.

Fuel ball valve

A ball fuel valve is a more acceptable option for installation on a VAZ 2107. Due to its design features, a ball valve is much more reliable than a diaphragm valve. The shut-off element in ball valves is a steel sphere with a small through hole in the middle. This sphere is attached to a long rod. And this entire structure is built into a steel body, equipped with two pipe threads. To open the tap, it is enough to turn its stem 90°.

With all the advantages, the ball valve has one significant drawback, which makes many drivers refuse to buy it. The sphere in the tap is steel. And although faucet manufacturers claim that these spheres are made only of stainless steel, practice shows that in aggressive antifreeze they very easily oxidize and rust. Especially during the long summer downtime, when the tap is not opened for several months. But if the driver is forced to choose between a diaphragm valve and a ball valve, then, of course, he should choose a ball valve. The price of ball valves today starts from 600 rubles.

Faucet with ceramic element

The most reasonable solution when replacing the fuel tap on a VAZ 2107 would be to purchase a ceramic tap. Externally, this device is practically no different from a ball and diaphragm valve. The only difference is in the design of the locking element. It consists of a pair of flat, tightly fitted ceramic plates placed in a special sleeve. This sleeve has a hole for the rod.

When the rod turns, the distance between the plates increases, opening the way for antifreeze. The advantages of a ceramic faucet are obvious: it is reliable and not subject to corrosion. The only drawback of this device is the price, which can hardly be called affordable and starts at 900 rubles. Despite the high price, the driver is strongly recommended to purchase a ceramic faucet. This will allow you to forget about antifreeze leaking into the cabin for a long time.

Water tap

Some drivers, tired of constant problems with the standard “Seven” fuel tap, solve the problem radically. They go not to the auto parts store, but to the plumbing store. And they buy an ordinary water tap there. Usually this is a Chinese ball valve for pipes with a diameter of 15 mm.

Such a faucet costs 200 rubles maximum. After this, the standard diaphragm valve from the “seven” is removed, a hose is passed into the niche where it stood, and a fuel valve is attached to the hose (it is usually secured with steel clamps, purchased at the same plumbing store). This design lasts a surprisingly long time, and in case of corrosion and jamming, the procedure for replacing such a tap takes only 15 minutes. But this solution also has a drawback: the water tap cannot be opened from the cabin. Every time the driver wants to use the heater, he will have to stop the car and climb under the hood.

Speaking about water taps, I can’t help but recall one story that I personally witnessed. A driver I know installed a Chinese crane under his hood. But he categorically did not want to jump out into the cold every time to open it. He solved the problem in the following way: he slightly expanded the niche in which the standard faucet had previously been located using ordinary metal scissors. He drilled a hole on the handle that opens the water tap. He inserted a hook made from an ordinary long knitting needle into this hole. He brought the other end of the spoke into the salon (under the glove compartment). Now, in order to open the tap, he just had to pull the knitting needle. Of course, such a “technical solution” cannot be called elegant. However, the man still solved the main task - not to climb under the hood every time.

What is needed to replace the heater valve of a VAZ 2107

The replacement operation is quite simple and does not require special tools or equipment. Before starting work, it is necessary to drain the antifreeze from the cooling system, for which you need to prepare a special container. You will also need:

• wrenches 7 and 10;
• crosshead screwdriver;
• pliers;
• new heater valve for VAZ 2107.

It is better to purchase a ceramic faucet rather than a standard one. Its parts do not wear out as intensively, and the surface does not become overgrown with dirt and scale.

Causes of heating tap failure

Of the entire cooling system, the heater valve of the VAZ 2114 is the most vulnerable part. Moreover, problems most often appear with the onset of cold weather. This is where one of the reasons for the failure of the heating tap lies: in the summer we don’t use it, it “sours” and requires repair.

The most common reasons for the failure of the VAZ 2114 heating tap:

1. Leakage due to depressurization of the housing . This is a serious problem that needs to be fixed as soon as possible. If this is not done, a large leak of the cooling fluid directly into the vehicle interior may soon occur. This leak begins with the flooding of your feet - you can miss this signal, especially when there is a rug under your feet, and if you do not carefully monitor the condition of the working units.
2. Souring of the locking device . The stove tap, which cannot be closed or opened, indicates that it has “soured.” Don’t rush to the service station, the matter is not urgent, but the problem should be fixed.
3. Contamination with antifreeze deposits . Just like in a radiator, various deposits accumulate in the tap pipes (as a result of the breakdown of coolant or other type of dirt). So, since the damper regulates and then increases the flow of fluid, it delays it, debris accumulates inside the part, and as a result, jamming and further failure.

The technical condition of the tap, like the entire heating system, depends on the condition of the coolant. There are too many fakes on the market, which have a very negative effect on the operation of the car’s stove.

One of the reasons for the failure of the faucet and the heating system as a whole may be low-quality coolant. Don't take just anything! Make purchases in trusted stores.

But besides the quality of the liquid and materials, there are other factors that influence the rapid failure of the faucet. Therefore, at the end of the article we will give some useful tips that will extend its life or notice a malfunction in a timely manner so as not to freeze in winter. Well, for now, let’s pay attention to the choice of the heater valve for the second generation VAZ “Samara” - VAZ 2113, 2114 and 2115, or the first one - 2108 and 2109.

Replacing the heater valve VAZ 2107

Before starting replacement, you should wait until the engine has cooled down. Before starting work, it is necessary to drain the antifreeze into a prepared container. Replacing the VAZ 2107 heater valve is carried out as follows:

• disconnect the heater supply pipe, which is located in the engine compartment;

• remove the heater air duct located on the right under the front panel;

• unscrew the control cable casing and disconnect the latter from the heater tap;

• unscrew the two nuts securing the tap to the heater radiator (when removing the tap, antifreeze may leak, so you need to place a rag or sponge under it);

• remove the heater valve;
• unscrew the adapter onto which the supply pipe is placed;
• replace the rubber gaskets between the tap and the adapter, the tap and the stove;
• screw the adapter to the new tap;
• install the tap in place, tighten the fastening nuts;
• attach the control cable, adjusting it so that the tap opens/closes completely when moving the lever on the front panel;
• install and secure the air duct and cable casing;
• attach the supply pipe to the tap;
• fill the system with antifreeze;
• make sure there are no leaks;
• start and warm up the engine, remove air pockets;
• add antifreeze to the expansion tank to the required level.

The replacement of the VAZ 2107 heater valve has been completed, the “seven” is ready for use.

Replacing the heating valve on a VAZ 2109

Before starting work, let's decide on consumables and tools. Here they are:

• new furnace tap;
• a pair of steel clamps for hoses with a diameter of 20 mm;
• canister of new antifreeze (4 liters);
• metal brush to remove rust;
• a set of rubber gaskets for the heating tap VAZ 2109 (in case the old ones are worn out);
• silicone-based automotive sealant;
• a pair of screwdrivers: Phillips and flat;
• socket heads for 13 and 10;
• set of open-end wrenches.

Sequence of operations

First of all, you need to pay attention to two points. Firstly, it is most convenient to change the stove valve in the inspection hole. At least on an overpass. And secondly, before replacing the valve, the engine must be allowed to cool properly, and the antifreeze mode regulator should be set to the “hot” position. This will allow the antifreeze to completely drain from the heating radiator.

1. A container is installed under the car standing on the pit to drain the old antifreeze. The cap on the radiator is unscrewed and the coolant is drained.
2. Under the hood there is a pair of hoses attached to the faucet pipes using clamps. These clamps are thoroughly cleaned of dirt with a wire brush. If they are very rusty, you can use WD40. Once the rust is gone and the bolts on the clamps begin to move, the clamps are loosened using a flathead screwdriver.

   
   As a rule, a lot of rust and dirt accumulate on the heating tap clamps

3. Inside, use a Phillips screwdriver to unscrew the screws holding the side panels.

   
   The side panel is held in place by two self-tapping screws, unscrewed with a Phillips screwdriver.

4. Access to the heating tap is provided. On the interior side there are two pipes with clamps. These clamps also need to be loosened. After this, the hoses are removed from the pipes (and this must be done very carefully: antifreeze may remain in the hoses, which will certainly spill onto the floor of the cabin).

   
   After removing the panel, access to the tap opens, you can loosen the clamps and remove the hoses

5. The faucet is secured with three 10mm nuts. They can only be unscrewed with a socket wrench. There is also a spring-loaded lock with a cable. The cable is detached manually.

   
   The faucet is held on by three 10mm nuts; they can only be removed with a socket head

6. The old tap is removed from the niche and replaced with a new one. After which the elements of the VAZ 2109 heating system are reassembled.

   
   The faulty faucet has been removed from its niche - a new one can be installed

Video: changing the heating valve and radiator on a VAZ 2109

So, replacing the heating valve on a “nine” is a task that even a novice car enthusiast can do. All you need to do is follow the recommendations above and remember to drain the coolant before starting work.

Malfunction - characteristic symptoms

The following signs indicate that the faucet is leaking:

• traces of liquid are found on the floor in the cabin;
• A characteristic smell of antifreeze appeared in the car.

Having discovered one of the above symptoms, it is necessary to inspect the failed unit. It is important to understand that if the breakdown is not repaired in a timely manner, then repairs will subsequently cost much more money, and it will most likely not be possible to do it yourself.

How to perform an inspection? You will need to get under the hood on the engine side. It should be noted that leaks can occur in various places in the cooling system, so you will need to inspect the entire system. It is more convenient to do this with a flashlight. Coolant, in particular, often drips from:

• radiator;
• joints of hoses and pipes.

When it turns out that the faucet is the culprit of the malfunction, the owner needs to start replacing it as soon as possible.

This requirement is even more relevant if it is winter, because without heating in a car it will be very uncomfortable to move and, moreover, dangerous if you have a long trip through a sparsely populated area.

How to Open the Faucet on the Stove VAZ 2109

Self-replacement of a VAZ crane stove2109

high and low panel

In practice, it is usually necessary to replace valve if it begins to leak or becomes stuck in order for the heater regulator to stop moving. The old man cannot be restored and cannot be restored. Although without this element the heating in the room does not work normally.

How to replace a damaged stove valve on a VAZ car2109

, described in this article.

Error is a characteristic

But in fact, the faucet was leaking, and the following signs appeared:

• traces of water were found on the floor in the cabin;
• the corresponding smell of antifreeze appeared in the car.

If you notice any of the above symptoms, you should definitely look for a broken node. Remember that if you don't fix the damage in time, the repairs will cost a lot of money and you won't be able to do it yourself.

How to check? It will be useful to get under the hood of an unfamiliar engine. It should be emphasized that leaks sometimes occur in different places in the cooling complex of accounting programs, so it is useful to study all this. It is more convenient to do this with a flashlight. Refrigerant, namely, often drips from:

• radiator;
• connection points for hoses and pipes.

If the fault is found to be the fault of the faucet, the owner must begin replacement as soon as possible.

This requirement is even more relevant if it is winter, because without heating it will be very inconvenient to move in the car, and also dangerous if the road continues through a sparsely populated area.

Which one is better to choose?

The duration of its operation and the reliability of the entire crane practically depend on the properties of the new crane. Accounting

(Software).

Of course, there are three types of this unit on the Russian market. There are reasons:

Features of selecting and replacing a tap

Since the valve of the VAZ-2114 stove cannot be repaired, you need to purchase a new unit to replace it. The stove faucet of this model is interchangeable with units VAZ-2108, 2109, 2115. Since plastic factory faucets of the membrane type are not reliable, purchase the best replacement versions - ceramic, ball. Such faucets are considered reliable and will last longer.

Replacing the stove tap is a simple operation, but its implementation is somewhat complicated by the location of the unit and its fasteners. The heater valve on the VAZ-2114 is installed under the front panel behind the center console. To gain access to it, remove the side trim on the passenger side.

Difficulties during replacement arise due to the fact that the faucet is mounted on the engine shield and is secured with nuts, which can only be reached from under the car. Difficulty also arises when disconnecting the control mechanism cable from the crane axle lever, since it is difficult to access the fasteners on the passenger side.

Self-replacement

Like most repairs, this procedure is carried out on an overpass. Replacement requires the following tools:

• Container for draining coolant;
• Classic set of wrenches and screwdrivers;
• Sealant;
• WD – 40;
• New faucet with a set of rubber gaskets.

1. 1. Display the VAZ 2109 car;
2. 2. Place the prepared empty container under the motor and, opening the drain hole, allow the coolant to drain;
3. 3. Next, you need to unscrew the pipes running from the engine to the heater. To do this, just loosen the fastening clamps. It happens that they do not give in, then it makes sense to use a “bucket” and clean the threads of the crane bolts;
4. 4. Remove the pipes and drain the remaining antifreeze;
5. 5. Remove the side trim of the dashboard in the car interior. Here, too, unscrew the pipes;
6. 6. Then, using a 10mm wrench, loosen and unscrew the faucet fastening nuts. It's under the car. Continue working inside the car again and tighten the tap on the passenger seat side. Then remove the clamp. Disconnect the control cable;
7. 7. The next stage is the installation of a new tap. First of all, it must be connected to the control cable. Now put the spring clip in place. Tighten the fasteners. When installing pipes, use sealant.

Having finished installing the new heater part, you need to pour coolant into the system and check how the replacement went as a whole.