Vesta heater fan noise

Can the problem be resolved under warranty?

Whether dirt getting on the fan of the ventilation system is a warranty case is described in the AVTOVAZ information letter, which was received by the editors of the Lada.Online website.

It says that when operating warranty-covered cars “Lada Vesta”, “Lada XRay” and “Lada Largus”, there may be vibration felt by the consumer on the steering wheel and instrument panel. The reason for this is the operation of the interior heater fan at speed 2 or higher with dust/dirt and/or other foreign objects on the fan impeller. Dust accumulation occurs when the vehicle is used for a long time on contaminated public roads, on dirt and field roads when the fan is not working, which is a failure to follow the recommendations set out in the operating manual.

Basic faults

Fuse box lada largus

A whistle is already a malfunction - there are not many of them in this unit. You have to say “heater” - either it works or it doesn’t. If the stove does not blow at all, this means the electric motor is jammed or the brushes are worn out. If you were still skating with a bang, and then at one point it disappeared, and the heater stopped working, then it’s definitely an engine failure, most likely the problem is in the bearing or bushings.

Therefore, in 70% of cases, lubrication really helps, but if you have been driving for a long time with noise, it is possible that the bearing is already worn out. Therefore, as soon as noise appears, crackling and so on, we disassemble the stove and clean it. What else I would like to note on our VAZs, especially on the “classics”, bushings were used instead of bearings; after they were worn out, they needed to be replaced, however, many craftsmen still install bearings on the VAZ heater - I think this is correct!

Checking the stove dampers

As you already know, air is pumped into the interior of the Lada Vesta by an electric fan through air ducts. It would be possible to drive air directly without using air pipes. However, then it would be impossible to regulate the speed and direction of air flows. For the orderly movement of air masses, an air flow distribution damper is used, which is located between the fan and the outlet from the air duct. There are several of the latter on the dashboard, and accordingly there are the same number of dampers.

Like any mechanism, the dampers that distribute air fail. To detect it, we will check the maximum power of the Lada heating device. This is exactly how the malfunction makes itself felt most easily.

If the volume of incoming gas does not change when moving the mode control lever. This means that the motion limiter does not operate. Most likely, the signal is lost along the way (electric drive). If you hear a creaking or noise when switching the heating mode. Lubricate the dampers with a lubricant containing silicone. Why do windows fog up?

When there is a large difference in temperature or humidity inside the cabin, a coating of water droplets forms on the glass. This is a very dangerous condition - the driver cannot see the road. One of the main functions of the stove is to quickly remove fogging. To do this, several air duct nozzles are directed at the windshield, as well as the side windows of the Lada Vesta. The luxury version also uses heated mirrors.

A working device quickly restores the windows to their normal state. This is achieved by supplying hot air to the surface. Therefore, if Vesta’s windows do not fog up, the reason for this is a faulty radiator.

How the stove works

Air ducts are directed from the Lada Vesta heater towards the windows, seats and floor. Air adjustment in various directions is carried out by central deflectors. The heat output is controlled by a wheel on the heater.

The Togliatti plant took a new approach to heating the lower part of the car interior. Now the air duct nozzle is located directly above the foot of the right limb, and not to the side, as before.

Depending on the configuration, the procedure for controlling the stove differs.

For “Classic” (without air conditioning), the left regulator is responsible for the air temperature, and the right one changes the direction.
The Comfort package has air conditioning. Compared to the basic version, the function of turning on circulation has been added here.
For “Lux” the developers installed climate control. Using the Defrost MAX mode, the air conditioner turns on automatically. This function also allows you to heat the windows and side mirrors.

Checking heating efficiency

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We start the engine and warm it up to operating temperature. We check that the inlet and outlet pipes of the heater radiator are heated and have approximately the same temperature. If the pipes have different temperatures, then it is possible:

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low coolant level in the expansion tank (which antifreeze is better)

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An air lock has appeared in the engine cooling system (air can be released through a special valve)

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Heater radiator clogged (replace)

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We install the temperature regulator on the stove control unit all the way to the red zone. We make sure that the temperature of the air leaving the panel deflectors begins to rise. If it blows cold, it means:

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the damper drive is faulty (the damper does not open, preventing air from passing through the heater radiator)

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The heater control unit is faulty (how to remove)

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Why is the air blowing from the left warmer and from the right colder?

I recently learned the answer to this question, found it on the Internet. One Lada Vesta owner also encountered this problem and contacted the official dealer. The car dealership replaced the heater radiator without any problems.

What was the reason? The radiator just clogged. It is not entirely clear why this happened on an almost new car. The dealer's employees explained that such cases happen often. Apparently, when cars are assembled, the cooling system is not flushed properly. Small particles remain in it and clog the radiator. The channels in it are very thin and look like a kind of filter.

It drives coolant through itself, and the particles in it get stuck in the radiator honeycombs. As a result, heating occurs unevenly. The heating in the Lada Vesta is designed in such a way that air to warm the interior is taken from different parts of the radiator. If it is clogged, then these parts heat up differently.

If the car is under warranty, then you can safely go to the official dealer and solve the problem. If there is no longer a guarantee, then you can simply flush the radiator without removing it from the car.

Disassembly - cleaning the fan

As I already wrote above, in each car the removal of this device is done differently, but the essence always remains the same, we either have the fan completely removed or there is direct access to it so that the elements can be lubricated.

I WOULD LIKE TO CAUTION - before you remove the electric motor, disconnect the terminals from the car battery to avoid unnecessary unnecessary short circuits.

The fan is almost always designed the same way - it is an electric motor and at the top there is a cylindrical comb (blades) that pumps air. Here's a small example.

Lada X Ray

You can independently eliminate the noise of the Lada X-Ray heater fan using one of 2 options:

Through the top panel in the glove box;
Through the cabin filter.

First way

Compared to Vesta, it is noticeably simpler due to the fact that you do not have to dismantle several components at once, although it is not as convenient to work with.

First you need to remove the top panel in the glove box on which the lamp is located.

The motor itself is on the left. To remove the impeller, you need to lightly press the top plastic lock and carefully turn the fan counterclockwise.

It is worth noting that it will not be possible to completely remove the motor, since this will require disassembling part of the dashboard. However, even the indicated hole is enough to clean the blades with a thin screwdriver wrapped in cloth.

Second way

To implement this option for eliminating heater fan noise in the Lada X-Ray, you will first need to remove the cabin filter and frill on the passenger side.

To get to the cabin filter, you need to remove the plastic lining of the transmission tunnel on the front passenger side (fastened with screws), and then, according to the above algorithm, remove the glove box lid (if necessary).

Next, you need to squeeze the latches and remove the filter cover.

To remove the filter itself from the housing, you need to grab its lower edge and then pull. After removal, it is recommended to clean the seat from debris (leaves, dust, etc.).

When the filter element is removed, all that remains is to remove the frill, which will require a 16mm wrench and a Torx T20 sprocket.

First you need to pry with a screwdriver or knife and remove the plastic caps that cover the nuts securing the windshield wiper arms. When this is done, all that remains is to unscrew the nuts and remove the leads along with the brushes. They should be removed carefully so as not to damage the splines.

The next step is to remove the hood seal. Then 3 screws are unscrewed in the right half of the frill and the clip is removed. Finally, you need to remove the right side of the frill. As for the left one, it is not necessary to dismantle it.

Location of fixation points and components when removing the Lada X-Ray frill

When dismantling is completed, it is necessary to insert an air conditioning cleaner tube into the air intake on the passenger side, then activate the heater and fill it with foam.

Assembly is carried out in reverse order. Before installing the windshield wiper arms, it is recommended to clean the trapezoid axes of the wipers from dirt.

As you can see, all the ways to independently eliminate the noise of a Vesta or X-Ray heater fan are more than feasible. All that remains is to implement them.

The stove in the Lada Vesta differs from similar devices on other AvtoVAZ models. The difference can be found not only in the design of the heating system, but also in the features of correction and control.

Lada Vesta

Dismantling

First you need to remove the sedan's heater fan. It itself is located on the right side of the dashboard, in the housing of the heating system unit.

First you need to remove the negative terminal from the battery, and then begin disassembling the glove box.

Removing the glove compartment

To remove the glove box on a Vesta, you must first open it and then release the latches that hold the top edge of the lid. When this is done, all that remains is to pull the cover towards you, and the resistance of the 3 fasteners will be overcome. Eventually the lid will snap off.

Vesta glove compartment attachment points

Next, you will need to remove the ceiling light, otherwise you will not be able to remove the glove compartment. The lampshade itself is held in place by a spring-type retainer. To remove it, you need to insert a knife or thin screwdriver into the groove from the front side, then carefully press and remove the lampshade. In the end, all that remains is to disconnect the plug.

When the lampshade is removed, it is necessary to unscrew the 5 mounting screws that secure the box to the dashboard - a Torx T20 sprocket is used for this.

Removing the fan

The next step in eliminating Lada Vesta heater fan noise on your own is to dismantle the unit itself.

When the glove box is removed, you need to look under the dashboard, where the fan will be visible. First of all, you need to disconnect the plug from it. Next, turn the fan counterclockwise, first pressing the latch.

The process is clearly shown in the video.

Getting rid of noise

After removing the unit, it is clear that as the vehicle is used, a layer of dust has formed on it, which can be 2-4 mm. In addition, various debris often gets stuck between the blades - these can be leaves, pieces of twigs, feathers, etc. All this during the rotation process creates a background noise - whistling, rustling, etc.

In addition, litter leads to an imbalance, which is especially noticeable when the fan is running at full power - all this creates vibration, and sometimes it is so obvious that the driver feels it on the steering wheel.

Dust on the blades

In this case, in order to eliminate the noise of the Lada Vesta heater fan, it needs to be thoroughly cleaned. And in order to inspect the unit for vibrations, it is recommended to power it from the battery. If noise still occurs, it is necessary to change the location of the balancing weights.

In addition, the body of the part can be covered with madeleine or another anti-creaking agent. This will reduce background noise. However, before gluing, the surface must be thoroughly wiped and then degreased with anti-silicone.

Everything is demonstrated in more detail in the video.

Assembly is carried out in reverse order.

Replacing the Lada Largus heater motor (VAZ Largus)

In order to feel comfortable in a car at any time of the year, it is necessary to monitor the health of its heating system, or in other words, the “stove”. Such a system is responsible for the heating, cooling and air circulation functions in the cabin. Since we have not yet created a car that is 100% protected from malfunctions, you must know how to do such work with your own hands as replacing the heater motor on a Renault Logan.

It cannot be said that the Renault Logan ventilation and heating system is a weak point, but such a malfunction, especially in the cold season, promises unpleasant consequences. The operating principle of the interior heating system does not differ significantly from the device in other cars. But if the rear window heating does not work, then this can also spell trouble.

The heater radiator is connected directly to the cooling system, in which the coolant circulates (coolant, about replacing it here, about choosing a coolant here), which warms up within 95°C during engine operation. A special fan blows onto the hot radiator, which creates a strong air flow and directs it into the cabin through special air ducts. The quantity and speed of supply of heated air is regulated using a damper.

Signs of a malfunctioning stove

You should think about the upcoming repair and replacement of the stove motor if the following malfunctions are observed in its operation:

An extraneous noise appeared when the stove was turned on.
Warm air stopped flowing into the cabin.
The speed of the incoming air flow has decreased.
And of course, if the stove does not turn on at all. (However, in the event of such a malfunction, first of all analyze the condition of fuse F36, which is located inside the car. It is located in the green housing and is responsible for short-circuit protection of the heater system).

Removing the heater system

Most Renault Logan owners are convinced that replacing the heater motor requires completely dismantling the front panel. The same position is described in the car repair and operation manual. Since such a process is quite expensive and inconvenient, many owners prefer to leave this problem unresolved. However, in reality, to dismantle the housing with the heater fan, it is enough to unscrew only a couple of screws. You can handle a similar task with your own hands.

But at the very beginning, make sure that the cabin filter is clean; sometimes, due to its contamination, air cannot get into the cabin. The filter is installed on the right side of the front panel.

If the filter is clean and its condition does not give you any doubt, you can begin dismantling the “stove”.

Tool for the job

To dismantle the heater we will need the following tools:

Screwdriver with straight blade.
Phillips screwdriver.
Plastic puller (or a regular ruler).
TORX T20 key.

Sequence of work to dismantle the stove

Remove the door seal.
Using a screwdriver, pry up the plastic lining of the rack and remove it from the latches.
After this, the first screw will be visible; use TORX T20 to unscrew it.
Then, using a flat-head screwdriver, carefully remove the plug in the lower right corner of the panel near the glove compartment and unscrew the second screw.
Now that the panel is not fixed, pull it towards you to create a small gap.
Then we inspect the surface behind the panel to find the fan housing. It is not difficult to find, it is round and located not far from the cabin filter.
After the stove fan is detected, remove the chip with the power cable from it and turn the fan housing clockwise to pull it out.

There are two types of fan designs, although the differences between them are minimal.

DIY stove motor repair

Typically, failure of the stove fan is caused by high wear on the motor brushes. In order to replace them, you just need to press out three latches, or use a Phillips screwdriver and unscrew 2 bolts.

After access is opened, we check the condition of the brushes and replace them if there is high wear.

Dimensions for brushes: 4 by 4 mm, and length up to 2 centimeters. If you find any that are longer, you can sharpen them. After repairs, it is necessary to lubricate all rubbing elements with high-temperature oil.

If the malfunction is related to a technical part, the housing has collapsed or individual parts have burned out, then the entire element must be replaced with a new one.

Installation of a repaired or new part should be carried out in the same way as removal.

Replacing the Renault Logan heater motor with your own hands (+ video and photos)

Checking the stove fan

The Vesta cabin filter is located above the blades of the unit. The job of the filter element is to collect dust and debris coming from the street. It is possible that these particles may penetrate into the ventilation device. Leaves or pebbles begin to rotate inside the impeller - the fan makes noise.

To clean it, you need to make access to it free;
To do this, remove the glove compartment and take out the filter element;
Now, on the right side of the furnace body we find the mechanism. We clamp the petal located at the top, turn the impeller counterclockwise, and remove the motor;
We clean the engine with napkins and cotton swabs. One of the reasons for the slowly working mechanism is a dense layer of dust on the walls;
We install the unit in place and assemble the interior plastic.

There are other typical unit malfunctions. To diagnose them, analyze the operation of the device at different speeds. If one of them does not work, check the wiring and the serviceability of the additional resistor (RFV).

If the Lada fan does not blow at all, the cause may be a blown fuse. Then you don’t need to disassemble anything, just replace the circuit element in the fuse control unit.

Removing and installing the Lada Vesta engine radiator

We prepare the car for the job. We install the car on a viewing hole or lift. Disconnect the negative terminal of the battery.

Remove engine protection.

Remove the front bumper of the car.

Remove beam 1, figure 1, of the front bumper.

Release the clamps and disconnect the air intake pipe from the air deflector 2.

Release the clamps and disconnect the ambient temperature sensor 1, Figure 2, from the air deflector 2.

Release the fasteners and remove the air deflector 2.

Drain the liquid from the engine cooling system (see article on replacing coolant).

Release the fastening clamps and disconnect:

— supply hose 1, Figure 3, radiator from thermostat pipe 3;

— radiator outlet hose 4 from the water pump inlet pipe;

— steam removal hose 1, Figure 4, from the expansion tank pipe 3 (use pliers).

Cut the clamps securing the hoses to the upper cross member of the radiator frame and the bracket on the gearbox.

Disconnect the connectors of harness 1, Figure 5, of the front wires from the connectors of block 2 of the electric fan relay, horn 3 and radiator electric fan 4.

Cut clamp 5 securing harness 1 of the front wires to the electric fan casing.

For vehicles with air conditioning

Press the clamps, disconnect and move aside condenser 1, Figure 6, of the air conditioning system from radiator 2 of the engine cooling system.

Operations for all vehicle trim levels

Turn and remove from the brackets 1, Figure 7, on the upper cross member of the radiator frame, the radiator fastening clamps 2 3.

Remove radiator 2, Figure 6, from the mounting on the lower cross member of the radiator frame and remove the radiator assembly with the electric fan and hoses.

Release the fasteners and disconnect the engine cooling fan from the radiator.

Radiator installation

Install the engine cooling fan onto the radiator.

Install radiator 2, Figure 6, engine cooling system with electric fan and hoses assembly into the fastening elements of the lower cross member of the radiator frame.

Secure radiator 3, Figure 7, of the engine cooling system with two clamps 2 to brackets 1.

Connect the inlet, outlet and steam exhaust hoses of the radiator of the engine cooling system to the corresponding pipes and secure with fastening clamps, Figures 3 and 4.

Install new hose clamps to the upper cross member of the radiator frame and the bracket on the gearbox.

For vehicles with air conditioning

Install and secure condenser 1, Figure 6, air conditioning system on radiator 2.

Operations for all vehicle trim levels

Install and fix the air deflector 2, Figure 1, on the radiator.

Install sensor 1, Figure 2, of ambient air temperature on air deflector 2.

Connect the air intake pipe to the air deflector.

Connect the connectors of harness 1, Figure 5, of the front wires to the connectors of block 2 of the electric fan relay, horn 3 and radiator electric fan 4.

Install a new clamp 5 securing harness 1 of the front wires to the radiator electric fan casing.

Install beam 1, Figure 1, of the front bumper.

Install the front bumper.

Fill the engine cooling system in accordance with the article (Replacing coolant).

Connect the earth wire terminal to the battery.

Start the engine and let it run for 2 - 3 minutes at idle speed to remove air pockets in the cooling system.

Check the functionality of the heater.

After stopping the engine, check the coolant level and there are no signs of leakage, and if necessary, bring the fluid level to normal. The coolant level should be between the “min” and “max” marks on the expansion tank.

Install engine splash guard

A malfunction of the Lada Xray stove most often consists of a decrease in air temperature or a cessation of air circulation altogether, i.e. The car's heater blows cold air and doesn't heat up like before. The main cause of this malfunction is the radiator of the interior heating system. On the Lada Xray, as on the Lada Vesta, it is located in the housing of the heating and air conditioning ventilation unit on the left side (driver's side).

Eliminate noise and vibration of the heater fan on Lada Vesta and XRAY

One of the differences between the Vesta and XRAY heater and other Lada cars (for example, Grants or Prioras) is that the cabin filter is installed after the fan. This design feature makes it easy for debris and dirt to get into the blades, which causes extraneous noise (whistle, howl, rustle) or vibration. How to solve the problem yourself 1. On a Lada Vesta. You will need to remove the heater fan. Over 10,000 km, dust accumulates on the fan blades; the thickness of this layer can be several millimeters. Also, pieces of debris (a twig, leaf, etc.) may get stuck between the blades. All this causes imbalance during rotation. Sometimes at speed 4 of the stove the vibration is so strong that it causes noise and is even transmitted to the steering wheel of the car. And the leaves in the impeller create an unbearable rustling and whistling sound. The main task is to clean the heater fan from dust and dirt. To check vibrations, you can connect a motor from a battery. If necessary, to reduce vibrations, we rearrange the balancing weights to other blades. It is also proposed to slightly modify the design (to reduce the vibrations transmitted by the fan) - stick an anti-creak (madeline) on the edges. 2. On Lada XRAY. Method 1: Remove the top panel in the glove compartment. Remove the impeller from the housing (press the petal on top and turn the motor slightly counterclockwise). It is not possible to completely pull the motor out through this hole, so we clean it with a suitable tool (for example, a flat-head screwdriver) without removing the fan. Method 2: Remove the cabin air filter and place a cloth at the front passenger's feet. Remove the frill from the passenger side and insert the air conditioner cleaner tube (the canister costs about 700 rubles) into the air intake. Turn on the stove and release the foam. Is it possible to solve the problem under warranty? Is dirt getting on the ventilation system fan a warranty case? It is described in the AvtoVAZ information letter, which was received by the editors of the Lada.Online website. It says that when operating warranty-covered cars “Lada Vesta”, “Lada XRay” and “Lada Largus”, there may be vibration felt by the consumer on the steering wheel and instrument panel. The reason for this is the operation of the interior heater fan at speeds 2 and higher with dust/dirt and/or other foreign objects on the fan impeller. Dust accumulation occurs when the vehicle is used for a long time on contaminated public roads, on dirt and field roads when the fan is not working, which is a failure to follow the recommendations set out in the operating manual. And to prevent leaves and other small objects from getting in, install a protective mesh on the air intake in the engine compartment. Let us remind you that in this article you can leave reviews about the operation of the Vesta stove.

Replacing the radiator of the VAZ 21129 Lada Vesta stove

To replace a stove radiator with your own hands:

It is necessary to turn off the power to the car, free the cooling system from antifreeze;
Remove the plastic trim of the instrument panel;
Remove the top panel in the glove compartment, remove the glove compartment;
The unit is located in the heater block on the driver's side, you need to free access to it - remove the metal pillar of the dashboard frame, remove the air pipe for heating the driver's feet;
Disconnect the pipes (be prepared for antifreeze leaks);
Open the cover of the stove device with a Torx screwdriver;
Remove the heater/cooler from the heater housing;
Install a new spare part;
Reassemble the structure in reverse order.

Lada Vesta drives on Russian roads. Passengers should be warm and comfortable. The new AvtoVAZ stove (with a cooling glove compartment for drinks, heating the driver’s feet) copes with its job “excellently”. But any device fails sooner or later. If faults are diagnosed and corrected in time, the device will warm your feet and soul for a long time.

Why is the air blowing from the left warmer and from the right colder?

Ventilation and heating system

Removing and installing the fan module The heating, ventilation and air conditioning system fan is located in the housing of the heating and air conditioning ventilation unit on the right side, on the front passenger side.

1. Place the car in the workplace. Open the hood and disconnect the ground wire terminal from the battery (spanner 10).

2. Open the glove box lid, remove the glove compartment lighting lamp from the mounting hole, disconnect the instrument panel wiring harness block from the lamp lamp (flat-head screwdriver).

3. Unscrew the five screws securing the glove box, remove the glove box by disconnecting the instrument panel wiring harness block from the limit switch of the glove box lid (replaceable head Torx 20, knob).

Fastening the glove box:

glove box;
glove box mounting screw;
dashboard

4. Disconnect block 4 of wiring harness 1 from fan 2 of heating, ventilation and air conditioning unit 5.

HVAC fan:

HVAC wiring harness;
HVAC unit fan;
fan clamp;
heating, ventilation and air conditioning unit wiring harness block;
housing of the heating, ventilation and air conditioning system

5. Press the fan lock 3 and at the same time, by turning the fan housing counterclockwise, remove the fan from the housing of the ventilation, heating and air conditioning system unit.

6. Install the fan of the heating, ventilation and air conditioning system unit in the reverse order of removal, check its functionality.

7. Install the glove box.

Removing and installing the fan speed controller

The HVAC fan speed control is located in the HVAC unit housing on the left side, driver's side.

If the car is under warranty, it makes sense to contact the dealer to troubleshoot the problem. Further instructions for those who decide to deal with the problem themselves.

1. On Lada Vesta.

You will need to remove the heater fan.

Over 10,000 km, dust accumulates on the fan blades; the thickness of this layer can be several millimeters. Also, pieces of debris (a twig, leaf, etc.) may get stuck between the blades. All this causes imbalance during rotation. Sometimes at speed 4 of the stove the vibration is so strong that it causes noise and is even transmitted to the steering wheel of the car. And the leaves in the impeller create an unbearable rustling and whistling sound.

How to remove the Lada Vesta heater fan

HVAC Fan
The HVAC fan is located in the HVAC housing on the right side, on the front passenger side.

Place the car in the workplace. Open the hood and disconnect the ground wire terminal from the battery (spanner 10).

Open the glove box lid, remove the glove compartment lighting lamp from the mounting hole, disconnect the instrument panel wiring harness connector from the lamp lamp (flat-head screwdriver).

Unscrew the five screws securing the glove box, see Figure 15-4, remove the glove box by disconnecting the instrument panel wiring harness block from the glove box lid limit switch (Torx 20 replaceable head, knob).

Disconnect block 4 of wiring harness 1 from fan 2, Figure 17-1, heating, ventilation and air conditioning unit 5.

Press the fan lock 3 and at the same time, by turning the fan housing counterclockwise, remove the fan from the housing of the ventilation, heating and air conditioning system unit.

Figure 17-1- HVAC fan:

1 — wiring harness of the heating, ventilation and air conditioning unit;

2 — fan of the heating, ventilation and air conditioning unit;

3 — fan clamp;

4 — block of the wiring harness of the heating, ventilation and air conditioning unit;

5 - housing of the heating, ventilation and air conditioning system

Install the fan of the heating, ventilation and air conditioning system unit in the reverse order of removal, check its functionality.

Install the glove box.

HVAC Fan Speed Controller

The HVAC fan speed control is located in the HVAC unit housing on the left side, driver's side.

Place the car in the workplace. Open the hood and disconnect the ground wire terminal from the battery (spanner 10).

Remove the instrument panel frame in accordance with the requirements of section 15 of this TI.

Disconnect block 2, Figure 17-2, of the wiring harness from the fan speed controller (RFV) 1.

Figure 17-2- HVAC fan speed controller:

1 — rotation speed controller (RFV);

2 — wiring harness block;

3 — RHF clamp;

Radiator for interior heating system

The radiator of the heating system is located in the housing of the heating and air conditioning ventilation unit on the left side, on the driver's side.

Place the car in the workplace. Open the hood and disconnect the ground wire terminal from the battery (spanner 10).

Drain the coolant in accordance with the requirements of Section 3, TI 3100.25100.20582.

Remove the instrument panel frame in accordance with the requirements of section 15 of this TI.

Remove the air duct 1, Figure 17-3, heating the driver’s feet by unscrewing two screws 4 (replaceable head Torx 20, knob).

Unscrew two bolts 5 securing the instrument panel cross member to the body floor (spanner 13).

Unscrew the two nuts 3 securing the instrument panel cross member strut to the cross member, remove the strut (wrench 13).

Figure 17-3- Instrument panel cross member post:

1 — air duct for heating the driver’s feet;

2 — instrument panel cross member stand;

3 — nut securing the rack to the cross member of the instrument panel;

4 — air duct fastening screw;

5 — bolt securing the strut to the body

The heater radiator is connected to the supply and discharge pipes by means of a flange connection through an O-ring, the connection is fixed with a spring clip.

Figure 17-4- Heater radiator pipes:

1 — heater radiator supply pipe;

2 — heater radiator outlet pipe;

3 — fixing bracket

Pull the clamp stopper tongue 3, Figure 17-4, to secure the connection and at the same time move the bracket, removing it from the connection (flat-head screwdriver).

Remove the tube from the heater radiator pipe.

Repeat the operation for the second connection.

Unscrew two screws 1, Figure 17-5, securing the heater radiator cover 2 3, remove the cover (replaceable Torx 20 head, knob).

Remove the heater core from the HVAC unit housing.

Figure 17-5- Heater radiator cap:

1 — screw securing the heater radiator cover;

2 — heater radiator cover;

3 - heater radiator

Install the radiator in the reverse order of removal.

Before installing the inlet and outlet pipes, install new O-rings.

Fill the engine cooling system with coolant.

Present the vehicle to the Quality Control Department. The quality control department will check the vehicle for compliance with the requirements of this TI and TU 017200-254-0023934 in the scope of work performed.

One of the common problems with Lada Xray is unstable or excessively noisy operation of the car's heater. If the heater on the Xray does not work, or after turning it on you hear a whistle, hum or howl, the problem is hidden in the heater fan. On LADA XRAY it is located in the body of the heating, ventilation and air conditioning system unit on the right side (front passenger side).

Before you begin dismantling the car heater fan, you will need to disconnect the ground terminal from the battery and remove the glove compartment.

Under the panel on the front passenger side, disconnect the block with wires (No. 4) from the fan.
We remove the fan by turning it counterclockwise, first pressing the latch (No. 3).
We install the Lada Xray heater fan in the reverse order.

Important! Before changing the fan on the XRAY, make sure that this is the problem. It may simply be a blown fuse or some strange noise coming from the transmission.

[pp_youtube src=»https://www.youtube.com/embed/KoWPZgeQIOk» ]

Activation of functions via ELM327 and Ddt4all software

https://www.youtube.com/watch?v=9kQGmf5S-sM

Required:

4-pin relay (article: 75.3777).
Wires.
Connector for installing an additional fuse (available in the Aliexpress catalog).
Connectors that fit onto the fuse.

Description of the scheme:

Contact 85 is the “minus” from the handbrake (under the handbrake there is a breaker on “-”), we pull the wire from the breaker to the relay.
Pin 86 is a constant 12 V (can be taken from the cigarette lighter).
Pin 30 is 12 V from the DRL fuse.
Pin 87 is the plus from the relay, which should be connected to the second socket of the DRL fuse.

As a result, when the handbrake is raised, the DRL will turn off. We release the car with the handbrake - the DRLs turn on.

The advantage of this connection diagram is that at any time (for example, during a visit to an official dealer), you can remove the wires from the connectors of the mounting block and insert a standard fuse in their place.

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On the Lada Vesta in the “Lux” configuration, the DRLs are controlled using an additional body electronics unit (EMM or comfort unit), which is located behind the glove compartment.

Scheme No. 1: DRLs operate only in the left steering column switch mode - “AUTO”. To turn off the DRL, set the switch to the “0” position.

Scheme No. 2: DRLs are disabled as long as there is ground on the additional channel of the car alarm or while the handbrake is raised (depending on the connection).

An additional car alarm channel should be programmed:

The minus appears after the engine starts, and the car is armed.
The minus disappears after releasing the handbrake.

Accordingly, after lowering the handbrake, the DRL begins to operate normally.

All connections are made on the EMM block:

Points 1 and 2 (broken). Points 3 and 4 (broken).
Broken wires: S1-C1 and S1-C2 in the diagram - power supply to the DRL lamps.
Point 5 (contact S2 D15 in the diagram).

Let us remind you that there is an easier way to disable the DRLs without interfering with the wiring. Owners of cars without DRLs can install them themselves.

A variant version has remote control of electric window lifters. Power windows are controlled using the remote control buttons when the ignition is off. The windows are raised while the lock button is held down for more than three seconds. The windows of the front doors are raised first, then the rear doors.

Owners of Grants and Kalin in the “Lux” configuration claim that the frequency of wiper operation on their cars can be adjusted. To do this, you need to make one sweep of the blades (without fixing the lever), wait until the windshield becomes dirty, and turn the wipers to the first position. The brushes will work with the pause that you set.

The headlight switch-off delay function (on foreign cars this option is called “Follow Me Home” or “walk me home”) allows the headlights to remain on for some time after the engine is stopped, illuminating the owner’s way home. This is a standard option in some trim levels of Lada Kalina and Lada Granta.

We talked about it in detail earlier. On Lada Vesta and Lada XRAY it needs to be activated (see links at the end of the article).

On Lada Granta and Lada Kalina you can choose one of two modes of closing the car:

When you press the key fob button, all doors open.
When you press the key fob button, the driver's door opens, and when you press it again, all other doors open.

To change the opening mode, you need to turn on the ignition (do not start the engine), press and hold 1 and 2 key fob buttons simultaneously until a sound signal appears.

CM. all functions with ELM327.

ps the article will be updated as new features appear.

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...designed to heat the car interior. The stove is also actively used during rain or cold weather.

The heater is also activated if necessary to quickly remove fogging from the windows or warm up passengers. In the “Lux” configuration, the car is additionally equipped with air conditioning, which creates a favorable temperature for a person.

The most common malfunctions of the Lada Vesta heater radiator: leakage, fan noise, engine vibration. The replacement process is not complicated, but requires care on the part of the repairman.

There have been no fundamental changes in the control of the air conditioning and ventilation system. Still, you may notice a few new keys.

The device of the "tens" stove

The design features of the heating system include the presence of a fuse assembly, a fan housing, a radiator with dampers for the influx of air masses and their uniform distribution. Cooled air flows, entering through the heater dampers on the VAZ 2110, warm up.

The key component of the heating system is the radiator of the VAZ 2110 stove. It is equipped with special inlet and outlet pipes. They go into the engine compartment and are attached to the car's cooling circuit. The radiator is fixed with a pair of screws, and the valve on the VAZ 2110 stove is mounted in the underwater pipe, which regulates the flow of coolant.

This mechanism can be controlled using a flexible rod mounted on the panel. A furnace electric motor is mounted at the bottom of the radiator on 2 elastic cushions located in the guide housing.

An auxiliary resistor is also built into the engine power circuit, which provides a 2-speed mode for the heater fan on the VAZ 2110. The heater is equipped with air ducts that distribute air masses to the deflectors for blowing the side windows, as well as to the tubes pointed at the windshield.

Hot air can be controlled by alternately opening or closing the heater covers. The air inlet damper is directly controlled by rods from levers.

How the stove works on Lada Vesta (process description)

A small interior radiator is connected through pipes to the engine cooling system, it is from this that the heat comes, and the heater starts working from it;
The heat received from the radiator is dispersed throughout the cabin by an electric fan, which forces air into the air duct nozzles;
The resistor (RFV) sets the operating rate of the electric fan;
The cabin air filter is installed at the outlet of the electric fan;
A damper is installed in the air ducts, which controls the flow of air reaching passengers;
The gearmotor moves the air flow distribution damper according to the task;
And the tasks are distributed by the control unit for the heater (stove) and, if available, the air conditioner. Under the control of the SAUKU unit (heater and air conditioning control unit) there is a fan, gearbox, and various heater sensors.

Vesta stove blows cold through all air ducts

Regardless of the configuration and type of climate control equipment, cold air from the stove can indicate only a few faults equally:

Low antifreeze level. There is nothing easier than checking the level and topping up if necessary, observing the tolerances and brand of liquid. After this, it is better to warm up the car and make sure that the heater starts to warm up. If everything is in order, you don’t have to read further.
Air lock in the cooling system. A very common malfunction on Tolyatti cars. As a rule, a plug occurs when the system is depressurized or when antifreeze is replaced using the wrong technology. In this case, the air plug simply prevents the heated antifreeze from reaching the heater radiator. We described in detail how to get rid of an airlock here and here.
Dirty cabin filter. Everything is clear here - air simply does not flow to the heater radiator, so there is nothing to blow through the interior. Replacing the cabin filter on a Lada Vesta, unlike a Granta, Priora or Kalina, is much easier. The filter is carefully removed from the cassette, then a new one is inserted.
Clogged heater radiator.
The symptoms are the same as in the case of an air lock: antifreeze does not get into the heater radiator or the radiator throughput is so small that the liquid does not have time to warm it up. New branded heater radiator Lada Vesta

The best option is to remove and wash the heater radiator. It's a lot of work, but it's worth it. On the other hand, you can flush the radiator without disassembling it, right on the car. How to clean a honeycomb radiator without dismantling is described here, and the most correct, but time-consuming method of washing is described here.

The engine takes a long time to warm up or does not warm up to operating temperature. In severe frosts, even plugs on the engine air intakes (car blankets, plugs) do not help solve the problem. The thermostat is the only culprit here. It is necessary to check its operation and replace it if necessary. How to do this is described here.

Typical stove malfunctions

The most common problems with the stove on Lada Vesta are the following:

the actual temperature does not correspond to the set one - low level of antifreeze (antifreeze), clogged radiator pipes or the formation of an air lock, which causes cold air to blow;
vibration appears during operation - the electric motor is loose;
insufficient air flow from the deflectors - clogging of channels and air ducts;
the heater is inactive when it is activated on the dashboard - failure of the fuse (No. 14) of the mounting block.

Checking the stove fan

During the circulation of the air flow, dust particles settle on the surface of the impeller, as a result of which it begins to make noise and extraneous sounds appear.

To clear the fan blades of debris, it is necessary to provide access to the unit.

Unsnap the glove box.
Remove the filter element.
On the right is the furnace mechanism. We press the plastic clips and turn the impeller counterclockwise.
We remove the motor.
We wipe the drive with a rag.
Install the parts in reverse order.

Checking the stove dampers

Dampers are installed in the area between the deflectors and the fan. During operation, they fail, become deformed, and become damaged. Checking the serviceability of the damper on your own is quite simple: you need to activate the stove at maximum speed. If it doesn't blow well, it means the air duct is clogged. Change the damper positions. If you hear squeaking or noise, lubricate the moving parts with silicone grease.

Foggy windows when the heater is activated is the first sign of a ventilation problem. This problem provokes a sharp decrease in visibility on the road and an increase in the risk of an emergency. As soon as fogging is detected, check the condition of the ventilation; most likely, the air ducts are clogged.

Checking heating efficiency

Carry out prevention before the onset of winter. Be sure to check:

heating the air;
changing speed modes when switching the control lever, if necessary, replace the brushes of the stove motor;
absence of extraneous noise, whistling in fan operation;
the need for a time interval to warm up the air ducts.

Note to the driver! The left and right pipes must be at the same temperature. Otherwise, this is a sign of a malfunction of the heating system.

The benefits and design of the Vesta stove

The device is necessary at a time when cold weather sets in, and it is necessary to maintain a comfortable temperature inside the vehicle for the driver and passengers. If you look behind the dashboard of the car, you will find the body of the stove itself, which contains:

A heating radiator designed to supply heat to the interior of a vehicle and its occupants. It is located on the left side of the structure. To remove this part, you will need to remove the dashboard surface trim.
Electric fan - this part of the device blows air masses through an air duct. It is located on the side opposite the radiator. To remove this part, remove the glove compartment.
An air filter that traps dust particles. Can be found on the passenger side of the heater unit;

The cabin filter is replaced from within the car interior. On previous AvtoVAZ models (Grant, Priora), it had to be removed through the engine compartment.

To adjust the temperature of the incoming air, change the speed mode and direction of flow, a control unit is installed in the heater.

Stove Lada Vesta