Rear window heating system - 10. Electrical equipment - LADA (VAZ) cars - Repair and maintenance manual

AvtoVAZ strives to produce products that will be suitable for use in cold weather. The engine starts working even at a temperature of -30 degrees, door locks are also adapted to cold weather. The designers took care to include a heated windshield in the Lada Vesta, as it is a product of the highest comfort.

However, not all models are equipped with this function. The heated windshield of the Lada Vesta is designed to ensure that car owners do not experience discomfort when driving in cold weather. Previously, I had to deal with ice and snow myself, which took strength and patience.

How does a heated windshield work?

Heated glass The option of heating the windows of the Lada Vesta is an indispensable and primary function for the operation of the car on harsh and cold days.

• There is no longer any need to manually scrape ice from the front and back of the machine. Heating removes ice from the front, rear and mirrors of the car in a short time. In case of strong wind and snow, it is also worth turning on this useful option on the Lada Vesta.
• The heating efficiency of all glass and mirror elements depends on the ambient temperature. Owners of Lada Vesta note that ice and snow thaw in three minutes at -3 degrees. If the ice does not drain away on its own, it is wise to use your windshield wipers. In colder weather, it takes longer for the heater to heat not only the interior, but also the outside area of ​​the car.

Heated windshield does not work

The operation of the function can be easily monitored at temperatures down to – 10 degrees. It handles ice and snow with ease. However, at a lower degree, heating productivity rapidly decreases. It takes a little longer to deal with the problem. You should not turn it off immediately without noticing the result.

Possible causes of the problem and their solution:

1. If the heated windshield of the Lada Vesta really stops turning on, you must first check the condition of the fuse, and if it breaks, replace it with a new one.
2. It happens that the heating function works partially and does not thaw small strips of snow on the windshield. The only thing that will help here is to completely replace it with a new one.

Most car owners, in the event of a breakdown and a warranty card in hand, prefer to contact dealers with a question about a replacement if the heating turns off on the Lada Vesta. At the first complaint, sellers refer to the fact that the problem will be solved by itself, because turning on the function works well in mild frost. If the owner agrees to replace the windshield, it is worth remembering that an incorrect repair will cause more trouble than a problem when the defrost does not turn on, and you need to wait a little longer.

How to connect a heated windshield

Connecting a heated windshield

It is better to install the windshield heating switch on a car one, with powerful contacts and a reinforced housing.

It is better to connect a heated windshield in the engine compartment - this is where the wires are led out, but the “positive” wire will have to be brought out into the cabin - to connect a button or key. Use a car switch, preferably one that has a suitable designation on the body - it will be more convenient to use, and the buttons designed to turn on energy-intensive devices have more powerful contacts and will not melt.

Heated windshield does not work on Vesta

Another problem that many Lada Vesta car owners have encountered is a malfunction of the windshield heating. To be more precise, the heating works, but there is no effect from it. So, this problem has arisen more than once, and more than one owner has had cases. Namely:

1. The heated windshield of Vesta worked properly, but when severe frosts set in, it refused to “warm up”
2. The upper “threads” heated up slightly, but the rest of the glass remained frozen

Dismantling

To connect, first of all, you need to gain access to the SAUKU - the heater and air conditioning control unit. On Vesta and X Ray, the algorithm is different, so it’s worth looking into everything in more detail.

Lada Vesta

In a sedan, the SAUKU unit is traditionally located on the center console. To get to it, you will need to remove 3 elements:

1. Panel overlay (plastic);
2. Key block;
3. SAUKU overlay.

The plastic trim is fixed to the center console using plastic fasteners. To snap them off, you need to pry it at the bottom and pull it towards you.

Next, the panel with the keys is dismantled, which is attached to the clamps, also around the entire perimeter. They need to be snapped off.

The most difficult thing to remove is the SAUKU trim.

It is better to start working on the left side. First you need to get to the fuse box by removing the plastic cover that covers it. You need to turn the 3 plastic handles that secure the lid at the bottom, and then remove the lock from above.

In the end, all that remains is to pull the cover from below, disconnect the clamps that secure it to the device from above, and remove the cover. Once the fuse box cover is removed, you will need to remove 2 mounting screws.

Next, we move on to the central part, where it is also necessary to unscrew the 2 mounting screws, which are located directly under the panel with the keys.

Then all that remains is to unscrew 1 mounting screw on the right side, which is located under the glove box lid.

After this, access opens directly to the SAUKU block, which is attached to the cover plate with Torx screws. They need to be unscrewed and the plug disconnected.

Lada X Ray

Independent connection of a heated windshield on a Lada X-Ray through an additional alarm channel also begins with the removal of the SAUKU unit. Everything here is noticeably simpler than on Vesta. The panel itself with the block is fixed with 2 hooks at the top and 2 iron guides equipped with springs at the bottom.

You need to carefully pry the panel at the bottom and carefully pull it towards you. This will cause the top fasteners to disengage. In the end, all that remains is to disconnect the plug from the wires.

How to solve this problem?

Since almost no one has experience repairing Vesta, the vast majority of car owners prefer to contact an official dealer. Which, in principle, is true, because the car is under warranty, and paying extra money during the warranty period would be a stupid decision.

But at the first contact, many specialists from an official dealer suggest driving more, and perhaps the problem will solve itself. Well, apart from bewilderment, these words cause nothing more. In fact, glass heating can work more or less normally, but only at less low temperatures. For example, from -10 to -15 there are rarely any problems with windshield defrosting!

Control unit for ventilation and heating system with air conditioning (manual control)

• The air supply mode is regulated by pressing buttons numbered 11 – 16, the indicator light lights up.
• To cool the incoming air, press button No. 18.
• The minimum air temperature depends on the “degree” of the air outside, the angle of the sun’s rays, the fan rotation speed, the active recirculation mode, and the speed of movement.
• After turning on the air conditioner (separate button No. 18), the indicator light comes on. Cooled air enters the car interior, and the humidity decreases sharply.

Before activating the air conditioning system, be sure to start the car engine. Do not allow the “cooler” to operate when the outside air temperature is below 5°C.

• During operation of the air conditioner, moisture and condensation will accumulate under the bottom of the car on the asphalt. Don't worry, this is a natural process.
• Before starting the air conditioning system (hereinafter - AC), be sure to make sure that at least one or more deflectors on the dashboard are in the open position. Otherwise, the air ducts will freeze up and the air conditioner will fail.
• It is strictly forbidden to direct a flow of cold air onto the windshield or side windows. This will lead to freezing and fogging.
• Do not direct the air flow towards the body, limbs of the driver or passengers.

An active air conditioner takes 5–7% of power from the power unit, and also increases fuel consumption by 3–5%. The indicator values ​​are averaged; the higher the speed, the greater the consumption. When driving in mountainous areas or serpentines, the SC can be deactivated automatically, as the load on the motor increases several times.

How to turn on the heated glass on Vesta

There is no separate heating button on regular Vesta trim levels. The heated front window starts working from one button, which is responsible for heating the rear window and side mirrors.

The operation of the system depends on the ambient temperature. If the temperature outside is down to -10 degrees, then heating will quickly melt the icing on the glass. But if it gets colder, the efficiency decreases noticeably. The greater the temperature difference between the cabin and the outside air, the less power the windshield heating is turned on. This is done to prevent the glass from breaking.

To speed up the process of defrosting the windshield, additionally turn on the heater at the highest blowing speed. To prevent fogging, turn on the air conditioner additionally.

Attention! Do not rush to turn on the wipers - they may fail if they do not have time to thaw. Wait until the snow starts rolling down the glass, then you can turn them on.

Do-it-yourself heating of windshield wipers and windshield washer nozzles

Heated windshield wipers

If you were unable to buy nozzles specifically for your car, you can always buy and install universal washer nozzles.

In auto parts and accessories stores you can purchase heated windshield washer nozzles (including fan nozzles). If there are no such ones on sale specifically for your car, then so-called universal injectors are produced. There is no difficulty in installing them. The main thing is to carefully route the wiring so that it does not hang down, but also does not break when opening the hood. This also applies to connecting the heated windshield wiper blades - the power wires should not interfere with the operation of the “trapezium wiper” mechanism. Unfortunately, even heated nozzles cannot prevent the washer from freezing in cold weather - on many cars the tanks are located, as they say, “outside” - outside the engine compartment. Therefore, some craftsmen equip the tank with heating by installing an electric heater at the bottom, which is also powered by the battery.

Air recirculation mode

Activation is carried out by button No. 19, the indicator light lights up. The air supply from outside is blocked, the climate control system takes the air flow inside the cabin.

The “Recirculation” mode is used to prevent smoke and exhaust gases from entering the cabin, as well as to accelerate the heating of the cabin during the first start after a long period of inactivity.

Do not overuse recirculation, as the lack of fresh air in the cabin causes drowsiness in the driver and passengers. Often this factor becomes the cause of accidents. To deactivate the mode, use the mechanical button (number No. 19). To start heating the rear and side windows, press button No. 15 once.

Self-installation

Installing a heated windshield on your own will require knowledge not only of electrical circuits, but also of installing the shield.

To integrate the option you need:

1. Remove the old windshield.
2. Purchase and install a new one with heating filaments.
3. Connect the heating terminals to the power supply.
4. Install the relay and button for turning on the heated rear window.

It is important to understand that not all models offer this option. Therefore, installation is only possible if the system is provided for in the design and is installed in high configurations.

Windshield defroster

I don’t even know whether to write about this or not! I just feel like tomatoes are going to fly at me, but it’s worth mentioning. Nowadays there are simply heaps of all kinds of electric heaters, which supposedly can not only melt the windshield, but also warm up the interior of the car! I wrote about these here .

But in essence, the effect from them is modest, no, I won’t say that there is none at all, but in order for such a fan to melt glass even at minus 10 degrees, you need at least 40 - 50 minutes of work! And then it will be one zone, on the right or left, and not completely glass. It also cannot cope with heating the entire cabin - its power is about 300 W, and it does not work efficiently; warm air comes out, not hot. Therefore, I do not recommend it to you as the main “defrost” for the windshield, but as an auxiliary one, why not! I saw one of these truckers in his legs, and he says it helps a lot! Although it is noisy like a child.

Personally, I myself am thinking about stirring up something, but my choice will most likely fall on transparent strips - heated wiper zones; I can’t buy heated glass for my model.

Now let's watch a short video on the topic.

I’ll finish here, read our AUTOBLOG.

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9 votes, average: 4.22 out of 5)

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Additional heating of the windshield can significantly reduce the time required to prepare the car for a trip in winter, especially in the dark, which, unfortunately, prevails in northern latitudes. Many modern cars are equipped with electrically heated windows already on the conveyor. You can also buy such glass and replace it with the regular standard one. But there is another option - to install a heated windshield with your own hands right on the spot, by gluing ready-made heating threads secured to transparent adhesive tape.

The operating principle of the heated windshield Lada Vesta

After starting the engine, while it is idling, press the heater activation button once. The indicator begins to flash to confirm that the system is active.

The left and right halves of the windshield are heated alternately at intervals of 30 seconds. The duration of the entire cycle depends on a number of factors:

• temperature outside;
• machine downtime;
• technical condition of the unit;
• degree of clogging of deflectors and air ducts.

Pricing factors

The choice of windshield for the Lada Kalina should be approached responsibly. Motorists who are accustomed to shopping wisely visit several points of sale and compare the characteristics and cost of the product. The price range for such spare parts is quite large. This is due to the influence of the following pricing factors:

• Type.
• Quality.
• Thickness.
• Strength.
• Manufacturer.
• Requires additional purchase of sealant.
• Originality.
• State.
• Place of purchase.
• The fame of the implementer.
• Purchase method.
• Delivery required.

Causes of heating malfunction on Lada Vesta

Recently, we have heard frequent complaints from motorists that when the button is activated, the windshield heating does not work. Do not rush to go to a workshop for diagnostics. Common reasons:

• Ambient temperature. As soon as the temperature drops below -15°C, the system becomes unstable. This is a defect at the software level, not just your car model.
• Damage to the protective layer and insulation also negatively affects the functioning of the system. Check the wiring first with a multimeter, most likely there is a loose contact on the board.
• When the temperature readings are down to -15°C, the delayed start mode is 3-4 minutes, warming up lasts 15 – 20 minutes. If the thermometer readings are lower, then the time increases to 5 - 8 and 20 - 30 minutes, respectively.
• Burnt fuse. Check its integrity in the mounting block, serial number No. F35, F38.
• Burnout of individual filament circuits: it is impossible to restore the functionality of the unit, only replacing it with a new one.
• Code violations in the stock firmware of the electronic engine control unit (ECU). Contact official dealers to update the data.

Malfunctions of the heating control unit

If after 5 - 7 minutes of operation the glass heating does not work, then check the condition:

• fuses (number 38, 44);
• electrical wiring, in the area from the control unit to the generator, distributors;
• generator operation, measure the outgoing current.

In order to carry out a comprehensive diagnosis, seek help from service station specialists. For prevention on your own, use a device such as a multimeter.

Conclusion

In Lada Vesta Comfort, you can activate the glass heating at the touch of a button. In a few minutes, the surface of the glass will be cleared of ice and snow. Of course, in critical frosts, when the temperature drops below -17 – 18°C, the system is not as effective and requires more time to “warm up”. To speed up the process, additionally turn on the stove heater and shut off the air supply down the interior through the deflectors.

Which Vestas are heated?

The basic configuration is not equipped with this function. You will find Vesta's heated windshield starting with the "Comfort" version. The minimum price of such a car is 592,000 rubles, and it is constantly being adjusted. Compared to the basic configuration, the difference in cost is about 75 thousand rubles.

If you need this function, but don’t have enough money for an expensive package, you can do it differently. You can install the option after purchasing the car. It will be much cheaper, especially if you install it yourself.

The “luxury” configuration will have “Defrost Max” - the button discussed above. It simultaneously connects rear and front heating, as well as heated side mirrors, air conditioning and air supply.

AvtoVAZ has equipped the Lada Vesta sedan with a heated windshield (in the “Lux” configuration and some “Comfort” versions). During the operation of the car, some owners encounter difficulties when using this winter option. Let's look at the main reasons why the heated windshield does not work or does not heat well.

How to turn on the heated windshield on a Vesta is described in the car's operating manual. Depending on the configuration, different buttons may be responsible for activating the option:

What is this?

By windshield, motorists understand a transparent shield that is installed in a hole located in the front of the cab. Auto glass performs the function of protecting the driver and passengers from insects flying ahead, wind, dirt, dust, and precipitation.

You may need to purchase a protective windshield in the following cases:

1. A crack appeared on the coating.
2. The product was broken due to vandals.
3. There are minor manufacturing defects.
4. I would like to install a more reliable option.

The presence of chips, cracks, and holes in the windshield can impair the driver’s visibility of the roadway. This increases the likelihood of an accident on the road. The coating can be restored if it has a small scratch or chip. But if there is more significant damage, it must be replaced. High demands are placed on the windshield. Therefore, when purchasing, it is better to give preference to well-known brands that produce high-quality spare parts for cars.

Reviews

If the heated windshield does not work

The effect of the option can be observed in cold weather with frozen glass. If after several minutes you do not see the result, then the glass heating is not working.

The Lada Vesta may have the following causes of malfunction:

1. The fuse has blown . Check the integrity of the fuse by its number and location according to the manual. Typically this is a 60 amp fuse number F75. If it is faulty, you will have to replace it with a new one.
2. Individual sections of the filament have burned out . It happens that heating does not work completely, but in separate areas. At the same time, you can see on the glass where heating occurs and where it does not. In this case, the windshield will need to be replaced. But many drivers are in no hurry to do this. It's better to drive without heating than to pay for expensive glass. After all, there are no cracks, and nothing interferes with driving the car.

Many Vesta owners, with a valid warranty, contact the car dealership to request repairs. But dealers are trying to convince the car owner that the problem is severe frost. They claim that with a slight warming the function will start working. But it is not always the case.

Where to buy?

It is better to buy original windshields for the Lada Kalina. They fit perfectly and are of high quality. If there is no opportunity to purchase the original, then it is worth considering the options of KMK and Steklo-Lux. It is better to make a purchase in specialized stores.

Results

In severe frost (at -20 degrees), the thawing order will be approximately as follows:

• 1 minute - the ice on the mirrors begins to melt;
• 2.5 minutes - the ice on the mirrors has almost melted, the bottom of the windshield (stove) begins to thaw;
• 4 minutes - the mirror elements are completely dry, the snow on the threads of the rear window will melt;
• 5-6 minutes - the windshield and areas on the side windows near the mirrors noticeably move away from the ice;
• 7-8 minutes - the heating has melted the ice from the main part of all the windows, you can drive.

In warmer weather, you can start driving earlier, as soon as the engine speed drops to operating speed. There are no comments on the operation of Vesta’s heating; one can only find fault with the fact that the seat heating is not adjustable.

Let us remind you that a discussion of the reasons why Vesta does not start well in cold weather or why the engine does not start at all is not included in this article. Other reviews and tests are in this category. Leave feedback on the operation of the heaters in the comments to the article.

Keywords: heating Lada Vesta | Lada Vesta glass | side mirrors of Lada Vesta | Lada Vesta seats | Lada Vesta stove

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Connection

Not all 2180 owners are satisfied with the operation of heating the windshield, rear windows and rear-view mirrors simultaneously with the heater fan and air conditioning. There is one way out of this situation - installing a separate button. Even on Vesta models that do not have a heated windshield function as standard, it is possible to connect this very convenient function when replacing the glass unit. If you need to replace your heated windshield for technical reasons, you should contact an official Lada dealer. Under the guarantee, the procedure is carried out free of charge, after an examination. It is necessary to make sure that replacing the windshield with heating is the only solution to the problem, since not a single part will last better than the original one. Careful operation and compliance with the recommendations of specialists will significantly extend the service life of the heating device. High water pressure on the windshield should be avoided when visiting car washes. Timely replacement of wiper blades is necessary, because poor-quality wipers scratch the glass surface.

Varieties

The following types of auto glass are distinguished:

1. Stalinite . This is single layer tempered glass. Has high mechanical strength and heat resistance. When destroyed, it breaks up into many small fragments with blunt edges. Therefore, this type of product can be called safe.
2. Duplex . It is distinguished by the presence of a layer of transparent plastic. This gives the product strength and keeps fragments from breaking.
3. Triplex . It consists of two sheets of glass connected by a layer of polyvinyl butyral film. The product is characterized by increased strength. When destroyed, the fragments remain glued to the film layer.

It is better to choose the latter option as a windshield for the Lada Kalina. It will cost more, but it guarantees a long service life, safety and durability.

Based on quality and price, the protective element is divided into three classes:

The last option is the least expensive. Premium glass will be more expensive, but of better quality.

Depending on the marking there are glasses:

1. With American type of marking.
2. With Russian.
3. With European.

Depending on the manufacturer, the spare part may be of the following brands:

Glass included in the package:

• Regular.
• With rain sensor.
• With seal.
• Heated.

There are products by color:

At the place of purchase there are glasses for the Lada Kalina:

• From the online store.
• From the car market.
• From a store that specializes in selling spare parts for Lada cars.
• Purchased based on an advertisement from car owners.