Purpose, malfunctions and replacement of the radiator of the VAZ 2104–2107 stove

For any car operating in the cold season, the importance of flawless heater operation cannot be overestimated. You can have different attitudes to the heat, but you’re unlikely to find anyone who likes to ride in a car wearing felt boots and fur mittens. Therefore, any heater malfunction that occurs in winter will be considered a disaster, regardless of the make and model of the car. If we talk about the VAZ-2105 stove, then it can hardly be called a technically perfect device - heater breakdowns are not that rare, and many owners have questions about the heating efficiency. Therefore, the improvement and repair of the VAZ 2105 stove are procedures that are of interest to the majority of “A” owners who are forced to use a sedan even in severe frosts.

How to independently repair and replace a VAZ 2105 stove.

Processing the engine compartment

But one more problem remains - the long time it takes to warm up the interior.
And to eliminate it, you need to insulate the engine. This will allow the engine to reach operating temperature faster and cool down more slowly. But it is not possible to insulate the motor itself; there are a significant number of moving elements on it that cannot be covered. But insulation of the engine compartment is allowed.

First you need to insulate the hood of the VAZ-2107. To do this, you can purchase a special cover from the auto store that is attached to the cover from the inside of the hood.

But many car enthusiasts prefer to do this with improvised materials. But when deciding to treat the hood, you should choose the right insulating materials. They must be non-flammable and not absorb oil. Therefore, it is not recommended to use ordinary fabrics.

The engine compartment can be better insulated by gluing insulating materials onto the shield separating the engine from the passenger compartment. But this can only be done by removing the engine from the car.

We recommend: Replacing the pump on a 16-valve Priora

In addition to the hood, the radiator also needs to be insulated. For this purpose, masks are used that are attached to the radiator grille.

Instead of a mask, you can use a regular cardboard sheet placed between the radiator and the grille. But it is worth considering that you cannot completely close the radiator; heat exchange must still occur. Therefore, a sheet of cardboard should not cover more than 2/3 of the radiator area.

There is no need to take this into account with a mask, since in addition to the grille, there are enough holes in the front end for the air flow to pass to the radiator.

Old style stove

First, let's look at how to repair the heating radiator of an old-style stove. Its removal is done from the hood side as follows:

1. Remove the rubber frill seal;
2. We find the screw securing the frill under the main brake cylinder and unscrew it;
3. We unscrew the screws securing the right part of the frill (there are 4 of them);
4. We unhook the 2 clamps located on the frill, securing the hoses and wires;
5. Disconnect the “plus” terminal and the “minus” wire of the fan;
6. The left side of the frill needs to be moved forward without removing completely. To do this, just unscrew a couple of screws;
7. Remove the windshield;
8. If there is one, then the terminal of the sensor indicating the antifreeze level must be disconnected. Remove the steam exhaust hose from the expansion tank.

Next we shoot one by one:

• Front window washer hose;
• Windscreen wipers;
• Windshield trim;
• Clamps securing the heater body;
• Its front part along with the fan;
• Cabin filter;
• Another part of the fan housing;
• All hoses: supply, return and steam exhaust;
• And finally, not without effort, we can remove the radiator housing.

If you have a copper one and you find a small leak in it, do not rush to throw it away; repair is quite possible for it. Copper is easy to solder, but if you do not have such experience, it is better to entrust this task to an experienced craftsman. Believe me - it's worth it.

Still, copper is in first place in terms of quality among radiators, followed by DAAZ. In any case, before replacing, inspect the unit, clean it, and assess whether it can be repaired.

When installing the same, cleaned, already fixed or new radiator, make sure that the pedal of the plastic fan housing (it is better to replace it with an aluminum one) fits exactly into the groove, otherwise the gearbox will not be able to change the position of the damper, and you will not receive heat.

Radiator and heater fan

You should know that in order to always keep the interior of a five-wheeler warm and cozy, especially on winter days, you need to be able to increase the amount of heat supplied. Which part is directly responsible for supplying warm air? Of course, the radiator. But there is a problem - at the top five the fan is so loud that it makes you laugh. It is very small and simply not capable of creating the required flow. What to do? First, let's compare the fans on the VAZ 2105 and the VAZ 2108. The first motor consumes 4.5 A current and has a rotation speed of 3000 rpm, and the second one 14 A, but spins 4100 rpm. This already says something. It is recommended to replace the fan with another one.

Replacing the heater fan VAZ 2105

Replacing the heater fan on a VAZ 2105 is carried out as follows:

• the lower part of the stove is removed (this is a simple casing, on top of which a regular electric fan is installed);
• the old fan is removed;
• we cut off one of the aerodynamic ridges that supply air to the legs of the driver and passenger (this is done due to the fact that the fan motor of the VAZ 2108 is much longer);
• the impeller is also removed, which will not allow the fan from the VAZ 2108 to sit in place;
• Instead, a homemade one is installed.

Advice. In order not to remove the impeller, but to leave everything as is, you can use another fan. A standard five-bladed fan for classics, which has a motor several times more powerful, is suitable. And its weight is much lighter, and the rotor of the new motor rotates stronger than even that of the VAZ 2108.

• increase the diameter of the impeller hole;
• we insert a new shaft there (we do this very carefully so as not to break the impeller);

• connect the fan and check its operation;
• adjust the resistor and assemble everything in reverse order.

Heater VAZ 2105 fan replacement

Advice. It is recommended to replace the resistor on the five by installing the eight version. The new resistor must ensure quiet operation of the fan. The fan switch should also be replaced.

The VAZ-2110 stove does not work: reasons, solutions

Let's consider the main reasons for the failure of the VAZ-2110 heater furnace:

1. Antifreeze is leaking from the radiator.
2. The temperature control has failed, working only in one position.
3. As a result of a malfunction of the controller of the furnace automatic control system.
4. The dampers for distributing the warm air flow are broken.
5. The temperature sensor in the vehicle interior has failed.

Initially, it is important to know and understand how the stove works, its principles, components and mechanisms. The car interior temperature sensor sends a signal to the automatic heater control system

When purchasing a car, the owner immediately selects the parameters for the stove, which subsequently serve as the standard value for the unit. The data is compared. If their difference is 2 degrees, then the system will give a signal and the gear motor will start the movement of the shutter to release air.

Before repairing or replacing the furnace, it is necessary to carry out diagnostics. This is done quite simply. The first step is to check the vehicle interior temperature sensor. To do this, you need to pull out its ends and pass a voltage of 1.2 watts through them. The automatic heater control system keys must be set to the minimum and maximum values. Finding them is quite simple, they are marked in blue and red, which will turn off the fan. The system itself is diagnosed with a multimeter, passing voltage through the pink and brown harnesses, after turning on the ignition

During the check process, it is important to turn the temperature setting knob.

The next step is to inspect the controller board for damage or burnt spots. System controllers can be of different models, and the voltage reading will directly depend on this. However, the test consists of the same thing: the voltage at the outputs must change. If this does not happen, then the system has failed. In this case, the hot and cold air outlet shutter will fail to operate.

Diagnostics of the valves is carried out as follows: the upper valve regulates the processes of suction of external cold air into the furnace, while the lower one passes heated air through the radiator. If the drive or one of the dampers breaks down, the oven stops working completely or partially. These parts break quite often: they jam, fail due to the presence of rust, or simply due to poor-quality drive operation. The damper of the VAZ-2110 car is made of metal or plastic, the latter are of worse quality, since due to hot air flows they are often deformed, which leads to jamming. At the same time, metal dampers suffer from rusting. Simply put, in the case when warm air flows to the side and hot air flows down, this indicates that the damper has partially opened, which has led to incomplete absorption of external air. The dampers are checked using an ohmmeter. Connect the device, set the lowest temperature and wait about 12-15 seconds. If the device does not produce any changes, then the system has failed.

Another common problem is the furnace fan cranking at one speed. In this case, the heater does not need to be disassembled, the reason is immediately clear - the problem is in the resistor. Rotating exclusively at third speed, it is considered burnt out and cannot be repaired; it must be replaced with a new one.

Also very important is checking the micro-gearbox, dampers and resistor. The stove of any vehicle will contain a resistor consisting of two spirals

One of them has a resistance of 0.82 ohms, and the second - 0.023. If both spirals rotate, then the furnace fan operates at the first speed, and if one operates, then the rotation speed is second. To start the third speed, there is no need for a resistor.

To improve the operation of the furnace on the VAZ-2110, the car is equipped with a controller adjustment system with a regulator located on the side of the device itself

It is important to consider that each product model cools the air by a different number of degrees when turning the handle. Simply put, model 812802001 with one turn of the knob in a clockwise direction will cool the air by 0.2 degrees, while model 8128020 with the same rotations will warm the air by 0.3 degrees

In the event of a minor breakdown, of course, you can repair the heater furnace on a VAZ-2110 yourself, but in difficult situations or if you have any doubts, you should contact the service center specialists.

Replacing the stove on a VAZ-2101, 2102, 2105, 2106, 2107

Most often, a malfunction of the heater radiator is detected when a puddle of antifreeze or water forms under the feet of the driver or front passenger, or when you turn on the heater in winter, instead of warm air, you get a stream of cold air, and again a puddle of antifreeze in the cabin.

The reason for this is a leak in the car's heating system. The result of such a malfunction is a spoiled mood and cool temperature in the cabin. This problem can be easily corrected on your own. For some VAZ models it will take very little time - VAZ-2101, VAZ-2102. Replacing the stove in a VAZ-2105, 2106, 2107 will require more fuss; repairing the heating system on these cars is not much different, but things are a little more complicated with the radio panel. In this article you will find useful information and guidance on replacing the heater radiator of VAZ cars.

First of all, you need to find out the reasons for the malfunction of the car heating system:

1. Antifreeze leak. There may be several reasons for an antifreeze leak in the car interior; they can be identified by visual inspection: a rusted heater radiator, a metal pipe, or a heater faucet. If your problem lies in the stove pipe or tap, then they can be replaced without disassembling the central panel and radiator casing. In this case, repairs will not require much effort and time. If it happens that the cause of the leak is a rusted radiator, then there are two options to deal with this problem. If you have a copper radiator installed, then you can solder it and tin it. You can do this yourself if you have the necessary skills, or find a master. If you have an aluminum stove radiator installed, then it would be most advisable to replace it with a new one, since such radiators usually cannot be repaired.

2. Cold air flow from the blowers when the heater is on. This phenomenon indicates impaired circulation of coolant in the vehicle’s heating system. This could be due to a malfunctioning heater tap or a clogged radiator. The faucet can be replaced, but it’s up to you to decide what to do with the radiator - either buy a new one or contact a radiator specialist.

The reasons are clear. Now you can start repairing the VAZ-2101, 2102, 2105, 2106 stove,

2107. For repairs you will need the following tools:

The tools required for this are Phillips and regular screwdrivers, open-end and socket wrenches for 7, 8 and 10. You will also need three rubber gaskets, silicone sealant and a liter of coolant.

The process of replacing the heater radiator on VAZ cars is described in detail below:

1. The coolant should be drained, this will make replacing the stove much easier. Although you don’t have to drain it, the losses will be small. Moreover, you have 1 liter of coolant in stock.

2

Unscrew the clamps on the radiator pipes and carefully remove the hoses; coolant may leak out of them.

3. Unscrew the 2 screws securing the rubber seal and remove it from the pipes.

4. In the cabin, remove the radio panel; it is usually secured with two self-tapping screws.

5. Using a size 7 wrench or a screwdriver, unscrew the fastening of the radiator tap drive cable, and then disconnect the cable from the tap.

6. Look for four spring clips on the fan housing and remove them. This can be conveniently done using a screwdriver.

7. Lower the fan housing down and move it to the side. It will not be possible to completely remove the casing - the power supply wiring to the electric motor will interfere.

8. Carefully pull the heater radiator out of the casing.

After these steps have been completed, you must carefully examine the heater radiator, metal tubes and faucet for signs of rust and leakage. If the tube shows signs of severe corrosion, then it should be replaced. The stove tap may also be faulty: if the tap handle is jammed (i.e. the tap does not open or close) or traces of coolant leakage are visible, then it must be replaced.

In the event that you had to replace the stove radiator itself, then both the tube and the tap from the old radiator can be screwed onto a new one. It is also necessary to install new gaskets: lubricate the gaskets with silicone sealant, and then tightly, but not too tightly, so as not to crush the gasket and tear off the threads, screw the metal tube and tap to the radiator. It is worth lubricating the radiator tubes with silicone sealant before attaching rubber hoses to them.

When the replacement of parts is completed, install the elements of the heating system in the reverse order, then fill in the coolant, start the car and check the tightness of the connections of the pipes and hoses. The replacement of the VAZ heater radiator has been completed. Now the inside of your car will be warm and comfortable.

How to improve airflow yourself

The air conditioner removes moisture from the interior well and improves glass blowing. It's summer. In autumn it is cool to use it, but in frost it is undesirable. We need to study the ventilation system.

You need to start by examining the air intake. If it is clogged, the carpets in the driver's and front passenger's cabin are damp, or even damp. It is necessary to carry out measures to clean the airways.

Next you should look at the cabin filter. They probably forgot to change it in time. Increased interior humidity indicates a necessary replacement. Some car owners don't put it back at all. But this affects the quality of the inhaled air and increases the level of humidity in the car.

A failed recirculation valve is easily identified. They understood the cabin filter, but there is no feeling of fresh air inside the car. In the Toyota Corolla 150 body, it is located on the left under the dashboard. You can take out the cabin filter and open the valve manually through the hole in the shelf, but it is better to repair the damper opening mechanism. The control cable may be loose or the sensor may be faulty.

If all else fails, then the car has such a feature. You can improve the airflow for your windshield yourself. Refining the windshield blower will not require expensive funds. You will need an ordinary indoor ventilation grille. Buy it without frame.

Pre-measure the length of the deflector holes. You need tape or glue, car paint.

Replacing the heater fan

The previous post “heater noise VAZ 2101 - 2107” revealed to us the main sources of noise in the heating system. And it may happen that the fan motor will need to be replaced. I will try to tell you how to do this in more detail.

Connection diagram and details of the electric motor of the heater VAZ 2101 - 2107

1 – battery; 2 – generator; 3 – ignition switch; 4 – fuse block;

5 – heater switch; 6 – additional resistor; 7 – heater fan electric motor.

It is useful to know about the parts of the heater; if you have disassembled the heater motor, then during reassembly this picture will serve as a small manual for you.

1 – lock washer; 2 – washers; 3 – body;

4 – anchor; 5 – crackers; 6 – cover

Do-it-yourself modification and modernization of the VAZ 2109 stove

If you are the owner of a VAZ 2109, then most likely you have already noticed the designers’ shortcomings in terms of heating devices. And the problem is not that the stove does not work at all, it heats, but the warm air is not distributed evenly throughout the interior of the vases

And the problem is not that the stove does not work at all, it heats, but the warm air is not distributed evenly throughout the interior of the vases.

Most often, it only heats the windshield, or just the driver’s feet, while the rest of the cabin remains unheated.

It is impossible to drive for a long time in such a cold car by yourself, not to mention traveling with children.

This is why many drivers are seriously thinking about how to make the car interior warmer. The only way out is to modernize the heating and improve its operation.

Installing a stove radiator

Installing the radiator is done in the reverse order. To prevent future coolant leaks, it is better to replace the radiator clamps and pipes with new ones. This especially applies to pipes.

Open the heater valve before adding coolant. After adding antifreeze, you need to start the engine and let it run a little at high speeds. The circulation of coolant from the pump will expel any air pockets that could have formed when filling it. After all this, we check the antifreeze level and if it is low, then add it to the radiator and expansion tank to the mark.

1. Drain the coolant.
2. Loosen the clamps and disconnect the pipe that comes from the radiator and the inlet.
3. Loosen the clamps themselves.
4. Remove the pipes by disconnecting them from the water pump.
5. We take out the thermostat. Disconnect the remaining pipes.

When installing the thermostat, you need to take note that this is a serious operation and must be carried out carefully:

1. Clean all surfaces thoroughly and replace the O-ring.
2. Correctly orient and place the thermostat in the housing.
3. Next, tighten all existing cover bolts. To be able to do this, you need to try.
4. Reinstall all hoses in their original locations, then fill with coolant.
5. You should also start the engine until it reaches operating temperature to make sure there are no leaks.

The radiator is a vulnerable car part

Replacing the cooling radiator of a VAZ 21093 The radiator itself is a rather vulnerable part of the car, because it has a brass body that is subject to numerous loads. And this part is thin in design, and if you take into account the huge number of solder joints in it, then the quick failure of the cooling radiator becomes understandable. The radiator is located in front of the car and a pebble from the road or a tree branch that accidentally hits it can become a fatal bullet. Even the smallest foreign objects that get into the radiator can destroy soldering and resistance welding points.

VAZ 21099 replacement of cooling radiator

In addition, the mutual influence of the elements of the car in this case plays a cruel joke. Long-term use of chemicals, whether you like it or not, weakens the contact zone, disrupts the operating mode of the pump, increases the temperature of the coolant, etc. In addition, if the radiator cap valve gets stuck, it will not allow the pressure to be relieved in time, which will ultimately lead to set of flow points.

How to remove and replace the heater motor on VAZ-2107, 2105 and 2104

So, dear friends, today we will tell you in an accessible language how to get to the heater motor on a VAZ-2107 in order to replace it or repair it, depending on what forced you to take it out. Let us immediately note that if the heater motor on your seven began to squeal when cold, or squeal, then this will only get worse, the motors from the factory are bushed, lubrication will not lead to anything, it may return you silence for a short time, but not for long, so in this case only replacement. And ideally, replacing the heater with a bearing motor - it certainly won’t squeal. So, first we will need to remove the beard on our seven. First, we remove the gear shift knob, it will interfere with us, and we remove the radio from the shaft and disconnect the connectors. It’s different for everyone, some may not even have a radio.

First, let’s unscrew the shelf, everything is simple here, the action is in three photos:

To further remove the beard, we need to remove the panel with the clock and cigarette lighter, pry it off from the right or left side with a flat screwdriver and pull it out of the latches:

Then, we disconnect the wires from the clock, the cigarette lighter (for ease of assembly, I would advise marking them), remove the socket to the side and gain access to two nuts, here it will be convenient to use a 10 mm socket wrench

We unscrew the nuts, do not lose the washers, look down where the buttons are. There is a decorative plug on the side that looks at the rear passengers; we pry it off with a screwdriver, and under it we see two screws screwed into the tunnel:

We unscrew them, disconnect the pads from the buttons, the panel no longer holds anything. We move it to the side and gain access to the stove body:

Now, we disconnect the side air ducts and carefully remove them from the latches with a flat screwdriver (the photo shows how they snap into place):

We are interested in the lower and middle parts of the body of the stove 2107, in order to remove them you need to get close to the metal latches, there are only four of them - two on each side, here they are:

It can be problematic to snap them off with your hands, we recommend using a screwdriver, like in this picture:

After the latches are removed (be careful when removing, they may “shoot” and fly away in an unknown direction), the lower part of the stove body can be easily pulled out by hand:

Here we see our motor. The motor itself is held in the lower part of the case, also on two metal latches; we snap them off and disconnect the terminals

and remove our motor from the stove body:

That's all, assembly is carried out in the reverse order, about 40 minutes are spent on everything. By analogy, the heater motor is replaced on the VAZ-2105 and VAZ-2104, the only difference is in the beard itself and its fastenings. A little later we will tell you about the nuances of replacing the heater motor in these and other VAZ models. Good luck on the roads and don’t let your car break down. We will be glad to see you in our VAZ classics club on the forum.

Basic faults

As a rule, a heater failure occurs due to the fact that its electric motor stops functioning. There are several reasons for this:

• combustion of the fuse link;
• breakage of the electrical circuit wires responsible for its operation;
• switch failure.

In the first case, the faulty protective device must be replaced. If the new fuse burns out, you need to find out why this is happening. Most often this happens if there is damage to the insulation of the wires or their separation from the connecting terminals. The electrical circuit is tested with a multimeter, and if a defect is detected, it is eliminated.

The regulator, in turn, usually does not work properly when its contacts burn out. A broken pusher also causes a similar result. The serviceability of this element is determined by measuring the voltage at its side contacts. Its presence when switching the toggle switch indicates operability. Otherwise, this unit will need to be replaced.

In addition, the motor itself may fail. The most common reasons are:

• breakage of armature winding wires;
• brushes sticking;
• collector oxidation.

If eliminating these causes does not correct the problem, then the engine is completely changed.

Sometimes a malfunction occurs due to a break in the wires supplying the mounting block or due to a burnout of the current-carrying track in it.

And finally, destruction of the resistor circuit may also occur - it is checked and the element that has become unusable is replaced with a serviceable one.

Installation

The new electric drive is installed in the reverse order. Do not forget to check the functionality of the purchased unit before installation. This will avoid unnecessary steps to re-disassemble the heater. Check if the engine is functioning

Fortunately, just connect it to the battery installed on the car directly.

When replacing the fan, it makes sense to also inspect other elements of the heating system of your “Seven”. Make sure that:

• there is no damage to them;
• the seal is not broken.

Pay special attention to the heater valve and radiator. Timely detection of problems will allow them to be eliminated with minimal expenditure of money and time.

This video will give you a better idea of ​​the process:

This video will give you a better idea of ​​the process:

Electric motor parts and heater switching diagram for VAZ 2107

1 - battery; 2 - generator; 3 — ignition switch; 4 - fuse block; 5 — heater switch; 6 — additional resistor; 7 — heater fan electric motor

The easiest way to replace an electric motor is in VAZ 2101, 2103, 2106 cars. In a VAZ 2107 car this is always associated with minor difficulties, since it has a more extensive ventilation system, placement of buttons, etc. That is why I would like to consider how to replace the stove fan exactly on this this make of car.

So, how to replace the VAZ 2107 stove fan:

1. First of all, you should move the lever (lower) to the extreme right position, this is done so that the side air duct dampers close. 2. Remove the instrument panel. 3. Then we move to the opposite side and remove the glove compartment body and the shelf for things. 4. We outline the wires and remove the beard, carefully, without tugging, remember what is located and where. 5. Using a 7 key, loosen the cable fastening and disconnect the rod.

6. Remove the end of the damper drive cable

7. Using a 10mm wrench, unscrew the nut that secures the heater radiator casing. It is located behind the central air duct.

8. Remove the ground wire from the stud

9. Then you should unscrew the fasteners of the right air duct. 10. We do the same with the left air duct.

11. We remove the side air ducts from the heater body using a screwdriver.

12. Remove the entire assembled casing.

13. Remove the fan from the housing, passing the wires inside, and disconnect the terminal from the resistor

14

Remove the impeller, paying attention to the adjusting washers

15. Disconnect the spring clips and remove the heater heater motor.

Assembly is carried out in reverse order.

Notes on replacing the fan: -You should only disassemble the electric motor yourself to check and clean the commutator. -If the stove is disassembled, you can at the same time inspect the remaining parts of the interior heater. -In order for the radiator to produce more heat, it should be washed. This can be done by using water pressure from a hose connected to the radiator inlet or outlet pipe.

Other problems with the heating system

Although heater radiator breakdowns occur most often, there are other malfunctions that can be easily fixed with your own hands:

1. Fan motor failure. Problems are created by the rotor bushings, which on the “original” motor are made of low-quality material. As soon as the heating system fan begins to whistle, it needs to be replaced with a non-original one, in which bearings are installed instead of bushings.
2. Heater valve wear. It suffers from scale, dirt, and simply wears out. Cranes are usually not repaired, but replaced. It is better to replace a faucet with a ceramic core; it is much more reliable and durable than a metal one.
3. Breakage of control unit rods. Everything is clear here: what should be regulated is not regulated - check the condition of the rods and their connection. Sometimes the problem is solved in just half an hour.

More complex work, such as tuning or modifying the stove, is no longer considered troubleshooting. Of course, the stove on a VAZ opens up endless possibilities for improvements and additions, but you can get by with what you have at the moment. The main thing is that everything works as it should, and then you definitely won’t freeze in winter.

It is better to check the heating system before the time comes to use it. In the summer it is more comfortable and easier to do repairs; you can take your time and look for high-quality and inexpensive spare parts, and generally come to the cold season fully armed. In most cases, when the VAZ 2107 stove does not heat, you can correct the situation yourself. You just need to have straight hands and the desire to do the repairs correctly and efficiently.

Replacing the stove on a VAZ-2101, 2102, 2105, 2106, 2107

Most often, a malfunction of the heater radiator is detected when a puddle of antifreeze or water forms under the feet of the driver or front passenger, or when you turn on the heater in winter, instead of warm air, you get a stream of cold air, and again a puddle of antifreeze in the cabin.

The reason for this is a leak in the car's heating system. The result of such a malfunction is a spoiled mood and cool temperature in the cabin. This problem can be easily corrected on your own. For some VAZ models it will take very little time - VAZ-2101, VAZ-2102. Replacing the stove in a VAZ-2105, 2106, 2107 will require more fuss; repairing the heating system on these cars is not much different, but things are a little more complicated with the radio panel. In this article you will find useful information and guidance on replacing the heater radiator of VAZ cars.

First of all, you need to find out the reasons for the malfunction of the car heating system:

1. Antifreeze leak. There may be several reasons for an antifreeze leak in the car interior; they can be identified by visual inspection: a rusted heater radiator, a metal pipe, or a heater faucet. If your problem lies in the stove pipe or tap, then they can be replaced without disassembling the central panel and radiator casing. In this case, repairs will not require much effort and time. If it happens that the cause of the leak is a rusted radiator, then there are two options to deal with this problem. If you have a copper radiator installed, then you can solder it and tin it. You can do this yourself if you have the necessary skills, or find a master. If you have an aluminum stove radiator installed, then it would be most advisable to replace it with a new one, since such radiators usually cannot be repaired.

2. Cold air flow from the blowers when the heater is on. This phenomenon indicates impaired circulation of coolant in the vehicle’s heating system. This could be due to a malfunctioning heater tap or a clogged radiator. The faucet can be replaced, but it’s up to you to decide what to do with the radiator - either buy a new one or contact a radiator specialist.

The reasons are clear. Now you can start repairing the VAZ-2101, 2102, 2105, 2106 stove,

2107. For repairs you will need the following tools:

The tools required for this are Phillips and regular screwdrivers, open-end and socket wrenches for 7, 8 and 10. You will also need three rubber gaskets, silicone sealant and a liter of coolant.

The process of replacing the heater radiator on VAZ cars is described in detail below:

1. The coolant should be drained, this will make replacing the stove much easier. Although you don’t have to drain it, the losses will be small. Moreover, you have 1 liter of coolant in stock.

The stove alternately blows hot/cold air

The most obvious reason for this particular problem is the presence of air in the cooling system line. As a rule, the VAZ-2101 stove does not heat well due to the fact that air pockets do not allow coolant to circulate as expected, and due to its deficiency in the heater radiator, problems periodically arise with heating the air supplied to the cabin.

Reasons for the formation of CO airiness:

• adding antifreeze without following the correct technology;
• depressurization of the cooling system line (the leaking coolant is replaced by air - laws of physics);
• The expansion tank valve is faulty.

If the cause of airiness is an antifreeze leak, it must be detected and eliminated. The problem with a faulty valve is solved by replacing the expansion tank plug.

In any case, you need to get rid of the airiness. This is done in the standard way: unscrew the engine cover and, with the engine warmed up to 90 degrees, press the accelerator pedal several times almost all the way for 3-5 minutes. A good gas release should expel air from the system, but to obtain guaranteed results it is advisable that the front of the car is raised (a gradient of 15º is sufficient).

How to remove the stove on a VAZ 2105

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4. Radiator replacement. Radiator replacement.

Replacing a stove radiator for a VAZ-2101, VAZ-2102, VAZ-2106, VAZ-2107 car

Motorists o. stove radiator (insulation), often mentioned only in autumn. winter. No, there are times when people mention this before. For example, the unexpected appearance of antifreeze or water (depending on what is poured into the cooling system) under the feet of the driver or front passenger. The cause of this phenomenon is leaks in the car's heating system. But most often the driver finds out about the malfunction of the heater radiator only with the onset of cold weather. When you want warmth and comfort in the car. Pull the oven switch knob in the heat direction, turn on the fan, and then instead of a blast of warm air from the ducts, you'll get a blast of cold air or another option. form a puddle of antifreeze. in the cabin. And as a result. bad mood and cool, uncomfortable atmosphere in the car.

But everything can be fixed (for any car) and in a very short time (this is a question for VAZ-2101 and VAZ-2102) Mainly replacing the heater radiator and other problems with heating system malfunctions on other Lada models. VAZ-2105, VAZ-2106, VAZ-2107 is a little different, a little more cluttered with a radio panel (panel), but this article will describe the process of repairing the heating system and replacing the radiator furnace VAZ-2101, VAZ-2102 cars.

Causes of heating system malfunction:

1. The reason for the appearance of antifreeze in the cabin may be a rusty stove radiator or a metal pipe in the stove faucet. You can determine the exact cause by visual inspection. If all the problems are hidden, for example in a faucet or pipe, they can be replaced without disassembling the radiator body and core panel. If the radiator is responsible for the coolant leak, there are two options to solve the problem. Firstly, if you installed a copper radiator (old model), it can be repaired, cleaned, sealed, preserved, etc. The main thing. find a master. The radiator is working. The second option is that you installed an aluminum stove radiator. Everything is simpler here, it is better to replace it with a new one, it cannot be repaired.
2. When you turn on the heater from the ducts, cold air continues to blow. The reason is a violation of the circulation of coolant in the car system through a faulty heater tap (it is constantly closed) or a clogged radiator itself. If the faucet is stuck, it needs to be replaced, but paragraph 1 of this article will help us choose the right radiator solution (see above).

How to replace the heater (stove) on a VAZ classic 2105 easily and quickly.

How to quickly and easily replace the heater core (hob) in a classic VAZ 2105

. This video shows how easy and fast it is.

VAZ 2107 Replacing the radiator plate!

Vas

2107 Replacing the radiator oven

!
In this video I will show you how to change the radiator on
a
Vas
2107 car.

They understood the reasons. Now the main thing is How to change the stove radiator for a VAZ-2101, VAZ-2102, VAZ-2105, VAZ-2106, VAZ-2107?

Necessary tools. a pair of screwdrivers (Phillips and regular), socket and open-end wrenches for 7, 8, 10. You also need to buy rubber gaskets (three pieces), a liter of coolant, and silicone sealant.

Repair

After the diagnostics have been completed, you can begin troubleshooting.

If the coolant level drops, it is necessary to find the location of the leak and eliminate the leak. Then add liquid until the neck is full. Then remove the air plug from the cooling system by pushing through the rubber pipes with the engine running, and add fluid if necessary. To replace the thermostat, you need to drain the coolant, unscrew the thermostat cover and replace it with a new one. Then fill in coolant and get rid of the air lock, as described in point No. 1.

To “break” a soured faucet, you can try to turn it manually (without a cable drive), and if it does not turn, you need to dismantle it and replace it with a new one. To do this, it is not necessary to drain the coolant; it is enough to clamp the pipes before and after the tap. You can try to lubricate a soured valve “remotely” by spraying water-repellent grease onto the hinge joint. If this procedure does not bring results, then you need to dismantle the entire heater and “develop” the damper. You can clean a clogged radiator by rinsing it with a special liquid or running water. But this will only help clean the inside, and the outside will remain clogged, so to achieve the maximum result from the work done, you need to remove it and wash it both inside and outside. If flushing does not produce results, then you need to replace the radiator with a new one.

Before replacing, it is advisable to flush the entire cooling system, otherwise this replacement will have a positive effect in a short time

The body is fastened together with iron brackets; it is important that they all stand in place and tightly press the parts of the body to each other. The radiator must be sealed in the housing around the perimeter to prevent flow from passing through the honeycombs

It is better to use foam rubber for compaction. After checking the fuse and wiring of the fan, you can begin to dismantle it. Then assess the feasibility of repairing this unit. Before final assembly, you need to connect the motor to the standard wiring and check the functionality on the car. The fan impeller is made of plastic and can be damaged with slight force, so special care must be taken during assembly.

https://youtube.com/watch?v=D7rHla9Rk1M

The diagnostic and repair methods outlined above will help you carry out repairs in the shortest possible time with minimal costs. After this, you will enjoy the warmth and comfort in your car for a long time.

Troubleshooting

To find the source of a leak in the heater radiator, pay attention to the following points:

• The primary sign of a leak in the interior heating system is an increased frequency of adding antifreeze to the expansion tank. At the same time, it is impossible to guarantee that the problem is in the radiator itself;
• Examine the condition of the heater valve and pipes;
• If the culprit is a faucet, it is not difficult to determine. If there are no unpleasant sweetish odors inside the cabin and the floor is not covered with traces of coolant, then this is definitely not it. The presence of such signs indicates that the stove tap needs to be replaced;
• The presence of deformations and cracks in the pipes can only be determined by visual inspection. Therefore, dismantling work will have to be carried out;
• Having discarded the options with pipes and tap, there is only one option left - damage to the heater radiator itself.

You should not delay repairing the radiator, since this will first lead to the need to spend extra money on antifreeze (moreover, you yourself will breathe in the antifreeze vapors, which can lead to poisoning). A liter of coolant costs about 100 rubles. And over time, the problem will worsen, antifreeze will fill the interior, begin to corrode the floor covering, and cause a lot of other troubles.

Which radiator to buy

When choosing a new radiator for the stove of your VAZ 2109, you should understand what exactly you want to achieve and what budget you have.

Today, consumers are offered two types of radiators to choose from:

Radiator type Features Aluminum A relatively inexpensive radiator option, which is characterized by high thermal conductivity. However, such a device cannot be repaired, which is its main drawback.

But in practice, repairs are not carried out so often, so few people pay attention to this minus. Copper If necessary and a leak is detected, the copper radiator can be repaired - soldered. Thermal conductivity indicators are slightly higher when compared with aluminum analogues. But at the same time, the price is quite high - both for repairs and for the radiator itself.

But at the same time, the price is quite high - both for repairs and for the radiator itself.

Due to unprofitability and high cost, most VAZ 2109 owners choose aluminum radiators. But it all depends on your personal decisions and preferences. When actively using a car in harsh winter conditions, a copper radiator is fully justified.