Replacing the heater radiator on a VAZ-2110: the difference between the new model and the old one, article numbers, where the heater radiator is located

New cooling system

The sequence of your actions in this case is as follows:

First of all, for safety reasons, disconnect the negative terminal of the battery. We drain the cooled antifreeze or antifreeze, first opening the expander cap. To drain the liquid you will need a container with a volume of 4-5 liters.
Now, after unscrewing the two nuts, remove the wipers from the car.
Then we dismantle the released protective plastic cover under the windshield, which is secured with 2 nuts and 4 self-tapping screws.
To access the stove, remove the frill of the car by unscrewing 5 self-tapping screws, 1 screw and 2 nuts located at the bottom, in the middle of the frill, in the area of the steering rack.
In order to remove the stove, remove the yellow cross brace, if any, as well as the curved bellows of the air filter.
We pull the chokes off the radiator pipes.
Then disconnect all electrical wires from the stove terminals.
At the steering rack, unscrew 2 nuts that secure the heater, 1 nut securing the heater to the body.
We unscrew the 3 screws connecting the two halves of the stove.
We take it out by swinging the right side of the stove, first moving it to the right.
The radiator in the removed half of the stove is secured with 3 screws. We take it out and replace it with a new one, not forgetting to put on the foam seal. We check the operation of the fan and, if necessary, repair it or replace it with a new one.
Before installing the assembly, it is advisable to rinse the coolant supply hoses with running water.
Assembly is carried out in reverse order.

Aluminum VS Copper: which radiator to choose?

Many years of experience in operating radiators made of various materials on domestic cars (including the VAZ-2112), it was noticed that its performance is not affected by the material from which it is made. Both copper and aluminum devices heat equally well.

The only criterion when choosing a radiator is its originality, since only a serious manufacturer is capable of producing a quality product. Therefore, when purchasing a heater radiator, it is necessary to pay attention to this criterion.

So, where exactly is the radiator of the VAZ-2112 stove? In the design of the interior heating system, the radiator is located inside the heater housing, occupying a horizontal position in relation to the central panel.

Removing the heater radiator

Your first priority is to get rid of the antifreeze. It is better to drain the coolant into a clean container if you filled it recently and it is in good condition. This will allow you to refill it later.

Relieve pressure by opening the expansion tank cap. Just let the car cool down before doing this.
Next, behind the ignition module, find the plug that needs to be unscrewed.
You should have about 4 liters of coolant coming out of the hole. Therefore, prepare a container of appropriate size.
Or you can drain through the expansion tank. Although this option is not particularly convenient.

After draining the coolant, you can begin further dismantling the radiator. But here the procedure depends on what kind of unit we are dealing with - a new or old model.

Let's consider both options separately.

Old stove

The radiator is removed from the engine compartment. This is done as follows:

Remove the rubber frill seal;
Under the brake master cylinder, locate the fasteners that hold the frill in place. Unscrew it;
Now remove the screws that hold the right side of the frill in place. There should be four of them in total;
Disconnect the two small clamps on the frill. They hold wires and hoses;
The positive terminal and negative wire are disconnected from the fan;
Move the left side of the frill forward a little, but you don’t need to remove it completely. All you need to do is unscrew a couple of fasteners;
Remove the wind cover;
If there is a coolant level sensor terminal, disconnect it;
Remove the steam exhaust hose from the expansion tank.

Removing thermal insulation

Next, you need to remove some elements one by one. Proceed strictly in the specified sequence.

Windshield washer hose.
Wipers.
Windshield trim. Heater housing clamps.
Front part of the heater with fan.
Cabin filter.
The second part of the case is the fan.
All hoses (steam outlet, return and supply).
Radiator housing.

If your existing radiator is made of copper, the presence of a leak does not indicate a mandatory replacement. It can be soldered. Only this question is better to entrust to a specialist. Even if you pay more money, the decision will be competent and correct

So we figured out how to remove the heater radiator on an old-style VAZ 2110. When installing a new unit or a repaired old one, make sure that the pedal of the plastic housing from the fan fits into the groove. If this is not done, the gearbox will not be able to change the position of the damper. Consequently, there will be no heat inside the cabin.

In addition, it is better to replace this plastic pedal with an aluminum one. Not expensive, easy, but reliable and durable.

New stove

If you are dealing with a new type of stove, there are some nuances regarding fixing the heater to the body.

To remove the unit, you will need to dismantle several elements. Namely:

There are screws at the bottom of the windshield, the middle one can be unscrewed;
Also unscrewed is a pair of nuts that you will find slightly above the intake manifold;
The nut located to the left of the filter must be removed;
If there is a reservoir with washer fluid for the rear window, then it and the air filter are removed.

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The new generation heater is distinguished by the fact that the design is detachable. This is quite easy to do to be able to replace the heater radiator.

How to install a new stove

VAZ 2110 (10th family)

The standard ten stove is noticeably inferior to the new type stove: both in power and in ease of use. The process of installing a new stove is described in detail below. The result is more advanced heating in every sense.

New sample stove

It has a radiator n/o installed accordingly

The following operation is relevant only for this system:

Modernization of the cooling system “Kalinovsky style”!!

Maybe the rest of you should skip this point.

But since the steam outlet seems out of place for us now, we take it out and install this one instead

The one that was in the stove was replaced by agreement with the new one

Then we stomp to disassemble the car, remove the toad, wipers, Shumka, and we get this picture

Next we need to remove the left half of the stove (if you look at it from the face), here it awaits us

In the form of a bolt twisted from the interior, three more such ambushes await us when removing the right half of the stove, numbered 1, 2 and 3

For those who want to preserve the old stove in its entirety, there are two options, both hemorrhoids:

How to remove the stove

Removing the stove on new VAZ-2110 models

First of all, drain the old antifreeze. To do this, the pressure in the system is released by opening the expansion cap. Next, we find the ignition control unit: the drain plug is hidden behind it; Unscrew it and wait for the liquid to be completely removed from the device.

The radiator is held on by 4 fasteners - a screw under the front glass, two bolts on the side of the intake manifold. There is also a nut next to the cabin air filter - it also needs to be removed. The driver has the opportunity to remove the radiator almost freely. But it will be so easy only for owners of restyled tens (VAZ-21103).

We also recommend reading our expert’s article, which talks about the features of tuning the VAZ-2110.

Removing the stove on old VAZ-2110 models

With the “old ladies” 1996-2001. everything is more complicated. The driver will have to remove the wipers, as well as the washer fluid supply line. Also superfluous will be a decorative trim under the forehead, a heater housing, a cabin air filter, a fan, and flexible heat supply hoses. AvtoVAZ engineers clearly did not want anyone to repair the stove themselves. Only by removing all the described parts will the car owner gain access to the interior heater radiator.

Fast way

The angry “vazovods” turned out to be no slouch and figured out how to remove the stove on a pre-restyling VAZ-2110. You will also have to work hard, but still less than with the standard algorithm.

Let us explain how to remove the stove on a VAZ-2110 in the simplest way:

After draining the antifreeze and disconnecting all the pipes, we dismantle the expansion tank.
The frill overlay will also get in the way, so we remove it.
And now the highlight of the program: remove the brake pedal along with the vacuum booster.
The repairman has a wonderful view of the radiator, and now nothing will prevent him from removing it after removing the fasteners.

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Use this “life hack” if you don’t want to spend several hours with repairs.

Repair and restoration of the stove damper

The deformed heater damper of the VAZ-2110 cannot be repaired; it only needs to be replaced. In this case, it is better to purchase a replacement metal part that is not so susceptible to temperature effects.

Whatever heater is installed on the VAZ-2110, to carry out repair work, the heater must be completely disassembled. In this case, the process of dismantling and disassembling depends on the design of the stove.

A positive aspect of the heater design on the VAZ - 2101 is its location - to get to it and the dampers you can from the engine compartment and you don’t have to remove the front panel.

Disassembling an old-style stove

For example, let's look at how to disassemble an old-style heater:

Remove the terminal from the battery.
We remove the windshield wipers, the seal, remove the air intake near the windshield (“jabot”) from the car, in the process you will need to disconnect the windshield washer nozzle tubes.
We dismantle the insulation that separates the stove body from the engine compartment.
We remove the gear motor.
We divide the housing of the stove and air filter into two halves. To do this, unscrew the coupling bolts around the perimeter of the housings and remove the mounting brackets.
Disconnect the fan power wires.
Remove the outer half of the air filter and heater housing (along with the fan).
We dismantle the inner part of the fan housing.

When to change/remove the heater radiator

If you have a couple of days free, then you can shoot quite often if it brings moral satisfaction. If we change or remove the radiator, then there must be objective reasons for this. Since we need the stove to heat, we will remove it when it is not heating. But first you need to make sure that the problem is in the radiator. Even the very fact of an antifreeze leak can be caused not by the radiator at all, but by pipes of disgusting quality, which become woody and crack after a couple of years of operation. The difficulty is that the stove reliably hides its structure and is perfectly protected from industrial espionage, so that not a single part of it is accessible to enemies without disassembly.

Therefore, if antifreeze quickly leaks into the cabin or under the hood near the stove, you should at least try to determine the cause of the leak. A leak is fine, but with a groundless failure of the heater it’s more difficult. There can be many reasons:

air lock in the heating circuit;
clogged heater radiator;
clogged cabin filter, if there is one at all;
clogged air ducts;
problems with the electric motor of the stove - it does not rotate, does not create pressure, creates insufficient pressure;
electrical malfunctions - electronic climate control unit, violation of air recirculation operating modes, typical malfunctions of switches and regulators.

If there is still a need to replace the radiator, we will replace it, but first you need to select it.

Replacing the heater radiator on a Priora without and with air conditioning. This is AvtoVAZ

The heat exchange device is represented by a radiator, through which the external air entering the cabin is heated;
A fan driven by an electric motor promotes air circulation in the cabin;
Damper that regulates the flow of incoming cold air;
Dampers that regulate and distribute the flow of incoming warm air into the cabin.

Disconnect the vehicle from the battery;
Now you can start removing the windshield trim;
The windshield wiper arms will interfere with operation, so they need to be removed;
You also need to remove the plastic fluid supply tubes to the injectors;
To remove the decorative trim of the windshield, you need to unscrew the seven screws that secure it;
After this, you can remove the hood seal;
There is a screw installed in the middle of the lining that tightens both halves of the lining;
Next, use a screwdriver to pry off the plugs that cover the screws, unscrew them and remove the trim from the body;
After this, you should begin to remove the sound insulation of the engine compartment; to do this, you should unscrew the screws that secure it, and then remove the left and right linings;
Now let's move on to the pipes going to the heater radiator. You should loosen the clamps and remove the pipes. Place a container under them, as antifreeze may spill. The removed pipes should be plugged in an accessible way;
Next, you should disconnect all connectors with wires that go to the heater;
After this you will need wrenches. Using a socket wrench set to “10” you should unscrew three nuts, and one nut will be used for a wrench “8”;
The wiring harness interferes with removing the heater. You need to remove the holder and take it to the side along with the wires;
Now the work will continue inside the car. You will need a “13” socket wrench to remove the bracket with the brake pedal, which then needs to be moved to the side;
The heater is accessible and can be removed for repair and maintenance;
To remove the radiator, you need to use a Phillips screwdriver to use three screws, after which it can be easily removed. In many cases, it is dirty, so it should be cleaned with a brush and blown with compressed air.
Installation is carried out in reverse order.

Remove the rubber seal from the windshield lining;
After this, they begin soundproofing the engine compartment. Some screws are not easy to get to, be patient, be careful and everything will work out;
Now you can begin to remove the foam gasket on the pipes;
After this, you can remove the plastic radiator cap; to do this, you need to unscrew three screws;
Once access to the pipes is available, you can begin to remove them. You should not completely drain the antifreeze from the system; you can substitute a small container and drain it from the heater radiator and expansion tank, and then plug the pipes.

How to remove and replace the heater radiator on a VAZ-2112 (old model)?

A leak of cooling fluid in the cabin is a direct prerequisite for the need to change the heating radiator, since it is already out of order.

Note that models older than 2003 have an old-style stove installed. However, towards the end of this year, the cars were already equipped with a new heater. Accordingly, they have some structural differences, and therefore are removed and installed differently.

Replacing the radiator on the VAZ-2112 stove:

We free the system from antifreeze by draining it through the hole in the power unit block or through the expansion tank. If you choose the second option, you must remove the ignition module. Next, remove the lid from the tank, and then uncork the drain plug. If there is no sediment in the coolant, that is, it is in a clean state, it can be reused.
It is necessary to remove the hood seal, which is located next to the frill.
The screw fixing the frill should be unscrewed, and then the screws securing its upper part should be unscrewed.
Loosen the clamps and remove all wires and hoses from the frill.
Disconnect the vehicle's power supply by removing the terminals from the power source.
On the left side of the frill there are two screws that must be unscrewed to remove the element. There is no need to remove it.
Remove the front cover.
You will need to remove the terminal (if any) from the liquid level control sensor in the system, as well as the steam removal hose from the expansion tank.
Remove the hose from the front windshield washer.
After unscrewing the four screws, you need to remove the windshield wipers with the windshield trim.
The stove fan is dismantled, as well as the mounting brackets for its housing.
The mounting screws are removed from the protective casings of the air filter and fan.
It is necessary to remove the front heater blower housing and the cabin filter housing.
The rear part of the fan shroud is removed.
The steam outlet line and the antifreeze supply hose must be disconnected, having first loosened their fastenings.
The heater core can now be removed.

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Before installing a new radiator, it is necessary to clean its seat in the stove body. When assembling the heater in reverse order, it is very important to control the tightness of all connections and the correct location of the parts. Otherwise, the heater may simply not function, and then the entire described sequence of work will have to be done again.

Stove fan

Structurally, the fan consists of a DC electric motor with a commutator-brush assembly and an impeller mounted on the electric rotor. motor. The electric motor is powered from the vehicle’s on-board network. There are several modes of fan operation, the difference between which comes down only to the rotor rotation speed, and this is realized by inserting a resistor into the power supply circuit of the electric motor.

The fan operating mode is set using a handle located in the heater control unit on the center console. Initially, on the VAZ-2110, this handle was part of the design of the SAUO controller, but functioned separately from the controller itself. Later, the ACS added an automatic fan control function (position “A” on the handle), using which the controller regulates the rotation speed of the electric motor in order to maintain the set temperature.

The electric motor used in the design of the VAZ-2110 fan is simple, but it has “weak points” - the commutator-brush assembly and bearings. Wear of these elements causes incorrect operation and complete inoperability of the fan. Short circuits and winding breaks in the stove drive are rare, but don’t forget about these breakdowns either.

Symptoms of failure. Heater components that affect fan operation

Signs of a malfunctioning stove fan are quite obvious and impossible not to notice. Common symptoms of failure:

Increased noise, grinding noise during operation.
Significant reduction in air injection efficiency.
The fan does not turn on.
Spontaneous change in the rotation speed of the electric motor.
It can be determined by ear that the electric motor is operating under heavy load.

In some cases, such consequences result from malfunctions in the power supply and fan control circuits, so you should check them first. This applies to:

fuse (blowout is the cause of complete failure of the electric motor);
resistor (if it is faulty, some speed modes of the electric motor stop working);
controller (the knob for switching fan modes is part of its design, so malfunctions of the automatic control system affect the functioning of the electric motor);
wiring terminals of the power and control circuits (oxidation, damage to wires is one of the reasons for a malfunctioning electric fan).

If diagnostics of these elements shows that they are in good working order, it is necessary to dismantle and repair the fan itself. But it can be diagnosed first.

Fan check

A check is done by directly powering the electric motor from the battery (we lay wires from the battery terminals and connect them to the power terminals of the motor) - operation under load, difficulty in gaining rotation speed, squeals and squeaks indicate wear of the drive components and the need to replace them. But if, even with direct voltage supply, the electric motor does not start, it is most likely that it has burned out or the windings have broken. Such faults are difficult to fix and it is easier to replace the entire unit.

Design features of the stove of the old and new models

The design of the electric motor of the stove on the VAZ-2110 is identical, but the fans and their location are different. On models of the first years of production, the electric fan is installed in the stove housing in front of the radiator and it is located horizontally (old-style stoves). Afterwards, the design was revised - the fan was already placed in the cabin filter housing and installed vertically (new model heaters).

Despite the design features, dismantling the fan is a simple operation and does not require complete disassembly of the stove.

On a VAZ-2110 with an old-style heater, to remove the electric fan you need to:

Dismantle the frill.
Remove the front wall of the niche in which the heater is located.
Remove the back cover of the fan housing by first unscrewing the screws and removing the clamps.
Disconnect the wiring from the fan and remove it.

What to install?

Brand Pekar

Heating radiators used for the VAZ 2110 are usually divided into two types:

Old style;
New sample.

Until the fall of 2003, old radiators were installed on the “tenth” model, and then cars with new units began to be offered. There is practically no difference between them, but the repair differs in approach and complexity.

In addition to the standard aluminum radiator, a copper analogue is perfect for the VAZ 2110. This unit has fewer fins, but is characterized by more efficient heat transfer. This will make the stove work much better. The only drawback of a copper radiator is its cost. Ideal for installation on a VAZ 2110, a double-row copper radiator marked 2110-8101060 will cost you up to 2,000 rubles.

If you don’t want to spend that kind of money, but want to get an effective device with high quality indicators, then choose the DAAZ model. This radiator is made of aluminum, works well, and the price does not exceed 1000 rubles.

When and what kind of heater radiator was installed on the VAZ-2110

Until mid-2003, the entire tenth VAZ family was equipped with DAAZ aluminum radiators with catalog number 2110-8101050.
After 2003, radiators of an improved design began to be installed on the 2110. Its article number is 2110-81010160-00.

Old style radiator.

New sample radiator.

Prices

The price of a native DAAZ radiator should not exceed a thousand rubles. Radiators will sell for about the same money:

Luzar;
Kraft;
Pramo LRZ;
Bautler;
Finord and a number of other manufacturers.

These are all aluminum heat exchangers, so their prices are not too high.

Aluminum or copper?

A copper radiator will cost more, but it's worth it.

A good copper radiator will cost approximately twice as much, but it is worth it : firstly, the heat transfer of copper is higher, secondly, a copper radiator has high thermal inertia (it takes a long time to heat up, but cools down slowly), thirdly, in case of damage, a copper radiator you can easily restore, clean, replace damaged elements and it will be much cheaper than replacing the entire stove radiator with a new one.

And copper is practically not subject to corrosion , if we talk about the life of the car. If we have made a choice, we assemble the tool, diagnose the heating system and replace the radiator on the VAZ-2110.

Design features

The VAZ-2110 heater radiator is fully compatible with other models of this family (2111, 2112). This is a single-section heat exchanger with two connection pipes. The device allows you to maintain a comfortable temperature in the cabin by supplying filtered hot flow from the engine. Also, the presence of a heating radiator eliminates fogging of the interior windows.

Be sure to read the article by our specialist, which describes in detail the technical characteristics of the VAZ-2110.

Standard dimensions: 160×50×290 mm. Made from aluminum. Curb weight is less than one kilogram. Currently, spare parts of the described type are produced by several enterprises. The most famous are DAAZ heating radiators, which were originally used on VAZ. Also, compatible parts are produced under the Luzar brand. If you do not want to frequently change heater components, pay attention to copper products, which are much stronger and have less heat transfer.

Replacing the radiator of the VAZ-2110 stove with copper analogues is carried out according to the same algorithm as the installation of standard heating equipment.

Setting the temperature of the supplied air from the heater

To fine-tune the control unit, it has an adjusting screw. To check the accuracy of temperature control, close all doors and windows and place a control thermometer next to the temperature sensor. Set the fan control knob to position A, and the temperature knob in accordance with the temperature measured by the control thermometer. If after 15 minutes the actual temperature in the cabin does not correspond to the set temperature, remove the controller from the socket and turn the adjusting screw clockwise to increase the temperature and counterclockwise to decrease it. After adjustment, check the operation of the control unit again. The control unit, temperature sensor with microfan, micromotor and heater damper position sensor cannot be repaired and must be replaced with new ones if they fail.

VAZ 2110 heater replacement technology

Replacing the radiator of a VAZ 2110 stove is quite quick if you remove it not as the instructions say, but remove it without disassembling the entire body, and even more so, without disassembling the interior.

The radiator can be easily and simply removed towards the vacuum brake booster. To do this, you just need to remove the brake pedal along with the booster, and you don’t even need to touch the master cylinder and bleed the brakes. Simply remove the cylinder from the vacuum booster, unscrew the two 17mm bolts from the interior that secure the pedal and the vacuum chamber, remove or cut off the old hoses and first drain some antifreeze to the level of the radiator. it's about a liter.

Naturally, you will have to change all the clamps and install new pipes so as not to risk the old ones, but this would have to be done according to the standard replacement procedure. The entire work of replacing the stove radiator will take an hour at most, the only drawback in this method is that we will not be able to really look through the stove body from the inside without dismantling it, and there may be a lot of interesting things there. Be bold, and the warm interior of the dozen will be a reward for your dedicated work. Happy travels to everyone!

Causes of malfunction

Replacing the heater motor of a VAZ 2110

As a rule, there are many reasons for such a malfunction, these include:

If the stove motor is not functioning, or some of its speeds are not working properly, then it is first recommended to check the resistor, which in other words can be called the stove rheostat. This element is responsible for the speed of the fan. You can purchase such a part in a specialized store that sells auto parts. As for replacement, this can be done with the help of a specialist or on your own, which is not so difficult even for an inexperienced specialist.

Note! In the case of repairing or replacing the heater radiator, it is recommended to contact a car service center, since it is difficult to remove the radiator yourself. To replace the stove motor, you will need minimal knowledge and detailed instructions.

There are heater malfunctions that can be easily fixed by any car enthusiast. For example, a situation may occur when cold air blows through the side deflectors and the windshield heating duct of the heating system, while a hot air flow comes from the lower and central air ducts. Most likely, the reason will be the unsatisfactory operation of the heater damper. which is designed to cut off cold air. In some cases, it prevents the normal passage of cold air. Such faults are most easily identified during the cold season. When bending the damper drive rod, special care must be taken so as not to damage the plastic parts. Please note that plastic becomes more fragile in winter.