VAZ 2107 wipers: purpose, malfunctions and repairs

Schematic diagram of a glass cleaner on a VAZ 2107

1. fuse;
2. wiper motor;
3. windshield washer motor;
4. relay and fuse box;
5. washer switch (water supply to glass);
6. three-lever cleaning speed switch;
7. VAZ 2107 cleaner relay. Type RS-514. Its mounting location is under the dashboard on the left, attached directly to the body;
8. egnition lock;

The standard wipers on the VAZ 2107 operate in intermittent and continuous modes. If they do not work at all, then first we do the simplest thing: before starting repairs, we check the fuse and the degree of oxidation of its contacts in the mounting block (location F2 for 10 A). The fuse is shared with the washer pump motor. So if the fuse is at fault, then water will not splash on the glass. When changing a fuse, pay attention to the size and color.

If the wipers do not work in rare rain mode, then most likely the relay in the mounting block or the steering column switch itself is to blame. The diagram shows that if there is power on the wire suitable for the relay and the control light is on, or the ammeter deflects the arrow, then the relay is at fault, adjustment will not help, replacement is needed. If there is no current, then there is an open circuit in the steering wheel, and the switch is to blame.

Why did the wipers stop not at the base of the windshield, but “just anywhere”? The gearbox is to blame for this. What should we do with it?

Replacing the gearbox is an alternative, since due to its design, adjustment and repair are difficult, and spare parts are not sold; repair and replacement of its parts (although the size allows) is not carried out, with the exception of the gearbox gear.

What are the most common reasons why a gearmotor fails?

In winter, the wipers of the classic and VAZ 2107 often freeze to the glass after work, since it was warm in the cabin. Sometimes the next morning the driver tries, either by accident or because he is too lazy to get out, to “at random” move them from their place using the cleaning lever.

When stationary, the load on the motor sharply increases, since normally the heat generation scheme is compensated by conversion into mechanical energy, and when the shaft is stationary, the motor burns out very quickly. It is then that repairs are required, or rather, replacement of the gearmotor; adjusting it does not make sense.

Let's look at how this is done on a VAZ 2107.

• We unscrew the wiper levers with an open-end wrench, size 10 or a socket head, then carefully remove the levers from their seats, having first bent them./
• Using an open-end wrench (size 22 mm), unscrew the trapezoid attachment points and remove the plastic bosses - inserts:
• After this, carefully remove the rubber profile - seal on the hood, and disconnect the power supply to the wiper gearbox:
• then we pull it and the wire out of the special hole in the body under the seal, unfold the cover, which performs a protective function, on the motor...
• and unscrew the gearbox mounting nuts, size M10. The most convenient way to use a wrench is:
• now you need to remove the bracket with the rods going to the lever drives together with the gearbox; you need to press the protrusions of the levers inward. They fall down, and after shaking a little - twisting carefully in different directions, the job is done!
• All that remains is to disconnect the gearbox and crank using the end nut (size 10 mm), and also unscrew the 3 nuts with which the trapezoid (bracket) is attached to the gearbox, now you can replace the motor.

In conclusion, we advise: if you have good knowledge of electrical engineering, the circuit diagram is no secret to you and you read it, are comfortable with a soldering iron, you can take on the wipers of the VAZ 2107. Repairing and adjusting them will not be difficult for you; if not, then actions such as replacing the gearbox and fuse, as well as the relay are quite accessible to you.

How to choose wipers for your car: overview of the most popular queries

Does your windshield not clear after just a few swipes of the wipers? Does it leave dirty streaks and streaks? Does the annoying squeak of brushes make you shudder? All these are clear signs of wear on the working part of the windshield wipers - the rubber plates. They become unusable when exposed to the sun in summer and snow and ice in winter. Run your finger along the elastic - if the edge is jagged or uneven, it's time to think about replacing it.

What do motorists do when they need to replace their wipers? The most inexperienced ones turn to a car service. For example, when undergoing annual maintenance, they are asked to include brush replacement in the list of work. Someone is trying to figure out this issue themselves: reading forums and thematic groups on social networks, looking for advice from “VAZ drivers”, “Solaris drivers”, “Pyzhevodov” and other fellow car owners. They ask which wipers to buy for Solaris, Ford Focus, Kalina, Kia Rio and other models. You can spend all day on the Internet looking for answers. Or you can spend 5 minutes on our article and find out the wiper parameters for your car. We have collected the most popular queries by brand and model. Surely you will find yours among them.

Find out the type of fastening

To install new wipers, you need to know how to attach them to the arm. The most common is a hook . It is used on most domestic and foreign cars, for example, on VAZ models starting from the tenth generation. The same wipers are used on Hyndai, Kia, Toyota, Daewoo, etc. It is important to remember that the hook size may vary. You can remove the windshield wiper and measure it. The most popular sizes: 9x3 and 9x4 mm. Another type of fastening is a pin lock , found, for example, on classics.

Foreign cars have more varied fastenings, because large concerns are trying to make most of the spare parts unique. Here are some of them:

• button – found on Volvo, Renault, Ford, Citroen, VW;
• side pin - present in car models starting from 2005: VW Jetta and Passat, BMW 3, some Peugeot, Volvo, Mercedes models;
• side clamp - found mainly in European models Audi, Fiat, Saab, Opel;
• bayonet lock - found on Renault models since 2004, as well as on Saab models.

These and other mounting options are shown in the images.

Types of wiper mounts

Many manufacturers of car windshield wipers include several fasteners in the kit so that the buyer does not have problems with installation. For example, one set of wipers will fit both Polo sedan and Kalina.

Measuring the length of the brushes

In order for the wipers to clear the windshield from one edge to the other, it is important to choose the right length. If your car has factory wipers, simply measure them with a tape measure. Take the time to measure both wipers, as some car models have different lengths. Typically, the driver's side has a longer brush. If the lengths are different, you will have to buy windshield wipers individually of different sizes. They are the same for many models. For example, the wipers on the Lada Priora are both 51 cm long. You can buy a set of two pieces. By the way, manufacturers indicate the length in centimeters and inches. For example, 17 inches is 43 cm.

What to do if your car has non-factory wipers? This happens when the previous owner of the car installed products that are not suitable in size. For example, if they are too long, then the edge of the rubber gets on the body and rides up - the brush does not fully adhere to the glass and does not clean it at all. And there are also short rubber bands that do not reach the edges of the windshield - dirty stains remain there and dry out with a gray frame. In such cases, it is better to find out the factory parameters of the brushes.

Based on the most popular requests from car enthusiasts, we have compiled two tables in which we have collected examples of car models with recommended parameters for windshield wiper blades. For convenience, we divided them into Russian-made cars and foreign cars.

Table with examples of Russian cars

The table shows the factory parameters. But many owners of Russian cars replace the standard blades with longer ones, since those installed by the manufacturer do not reach the edge of the windshield. For example, wipers on Vesta can reach 61 and 48 cm for the driver and passenger sides, respectively. It might seem like just a couple of centimeters, but they make a big difference. As motorists note, the cleaning radius increases, and there are fewer dirty streaks on the sides of the windshield. If you want to install longer blades, then measure not the actual length of the blades installed, but the part of the windshield in which the wiper will be provided with free movement.

Operating principle

On a VAZ 2107 car, the wipers are driven by a 12 V electric motor. A relay is installed in the windshield wiper activation circuit. It is responsible for the intermittent operation of the wipers, which work without interruption or at intervals of four seconds.

The windshield wiper is connected in parallel through the contacts of the closer. They are located in the gearbox housing and are “responsible” for returning the brushes to their original position and abruptly stopping the motor. The driver controls the operating mode of the windshield wiper using the switch. The whole mechanism works thanks to a motor. It is prohibited to operate a car with faulty wipers, so car owners must ensure that they are in good working order. And in bad weather, driving with non-working wipers is very dangerous!

How to fix windshield wipers

on the VAZ- 2107 work great in pouring rain, but when it’s drizzling outside, for example, they can be said to run idle and, as a result, wear out more quickly. The problem can be solved - you just need to “modify” the wipers. And it lies in the fact that it is necessary to change the frequency of their strokes or make its adjustment smoother.

• You have to remove the relay near the lever that opens the hood.
• Then the relay cover is removed and the previously installed resistor is changed. If, for example, the original resistor is 60 kOhm, then it makes sense to replace it with 30 kOhm. In this way, you can reduce the interval of wiper sweeps by half.
• Next, the new resistor must be soldered to the board on one side.
• There is a gap in the circuit where you need to solder wires, the task of which is to connect to a variable resistance.
• Now the relay can be assembled and installed in its original position.
• It is recommended to install the resistor in the dashboard so that it is convenient to use, since it is with its help that the brushes are now switched.
• Using this connection, it is possible to independently select the operating mode of the wipers. The range is from two to ten seconds.
• Upon completion of assembly and installation, you need to turn on the windshield wipers and check their operation.

There is also another, simpler way to improve it. Purchase a ready-made relay with adjustment. Replacement occurs in the same way as the previous method.

we can say that, as you have seen for yourself, replacing and repairing brushes is not a difficult task, you just need to know how wipers should work and take the matter seriously. First check what the problem is, and only then look for the cause of the problem.

Sources:

https://7vaz.ru/remont/dvorniki.html https://ladaprofi.ru/vaz-2107/chto-delat-esli-ne-rabotayut-dvorniki-na-vaz-2107.html

Where does which wire go, or just a diagram

Connecting wipers and washer

“Plus” power is supplied from the ignition switch through fuse No. 2 at 10 Amp of the mounting block. The permanent “plus” goes along the black and yellow wires to contacts “4” of the connectors of the gear motor and the steering column switch. It should not disappear even when the switch is in the “off” position. The blue wire supplies “+” 12 V power to the motor when the switch is in “continuous mode” position. On the blue-white wire, in the “off” position there should be a “minus”, and in the “continuous mode on” position the “minus” is turned off. This is done to slow down the motor when the power to the closer is turned off.

The red wire supplies the relay with “+” 12 V from the switch when the intermittent mode is turned on. At the moment of operation, contacts “2” and “4” close, and “1” and “3” open, the motor starts working and the brushes make one or two movements. Then “+” 12 V is turned off, and contacts “1” and “3” are closed to each other and to “minus”. The motor stops for a few seconds and then the cycle repeats.

The washer pump motor is connected to “+” 12 V constantly with a black and yellow wire through the same fuse No. 2. “Minus” is applied when you press the windshield wiper lever from bottom to top.

Video about how a windshield wiper works

Mechanical breakdowns

The most common reasons why the VAZ 2114 windshield washer does not work are mechanical damage.

The most common of them are:

1. the washer fluid has run out in the tank;
2. the pipeline leading to the windshield wiper is clogged;
3. the windshield wiper nozzles are clogged;
4. the water used as washer fluid froze;
5. the hose fell off the pump;
6. the hose going to the windshield wiper is pinched;
7. The supply hose has ruptured.

VAZ 2107 wiper malfunctions

Replacing a burnt out motor

During the winter season, at sub-zero temperatures, wipers often stick to the windshield. The wiper motor is under a lot of load, and it burns out if the bimetallic fuse does not work or the fuse burns out.

Location of the glass cleaner and washer fuse in the mounting block

In such cases, it is necessary to replace the motor. To do this, you need to remove all the parts in a certain order:

• Unscrew the fastening nuts;
• bend the lever and remove it from its seat;
• Using a 22mm wrench, unscrew the trapezoid fastenings on both sides;
• remove the plastic inserts;
• remove the hood seal;
• remove power from the windshield wiper motor;
• remove it with the drive from the hole in the body;
• bend the protective cover, unscrew the fastening nuts;
• press on the protrusions of the slots on the reverse side, on which the wiper arms sit, so that they fall inward, move in different directions, the trapezoid with the motor will come out.

Video instructions for replacing the windshield wiper trapezoid

After disconnecting the mechanism parts, you can repair the gear or install a new motor. But the electric motor must be inspected, even if it is in working condition. It is a conventional DC electric motor, the rotation of which, through a worm gearbox, is supplied to a trapezoid.

Walk over the collector with a cloth soaked in solvent. If there is a lot of wear, you need to change the armature or motor. Defects on the gear will require it to be replaced. Assembly occurs in reverse order. Therefore, before installing a replacement electric motor, you need to clean the trapezoid from contamination, lubricate the rubbing elements, motor and gearbox.

Trapezius problems

The trapezoid transmits rotational movements from the electric motor to the wipers and ensures the reciprocating movement of the wipers while cleaning the glass. Interruptions in the operation of wipers occur due to problems with the trapezoid; oxidized bushings and corrosion on the axles lead to jamming and slow operation of the mechanism. You can remove the trapezoid with a flat-head screwdriver. To set the correct position when installing the trapezoid, you must:

• set the motor to the initial position;
• place the crank and short rod parallel to each other;
• After that, attach the motor to the trapezoid.

Wiper relay not working

If the wipers fail to operate in intermittent mode, it can be argued that the relay has failed. First you need to check the power supply to the relay block. To do this, you need to remove the relay, turn on the wipers in intermittent mode, and check the voltage at the terminals. If no current flows, you need to repair the open circuit or replace the switch. The design of the relay is such that it cannot be repaired. So, if it does not work under voltage, you need to replace the part with a new one.

Wiper switch

To check the voltage supply to the switch, you need to remove the pads from the steering control or on the relay connection blocks. There is always voltage on the black-yellow wire. Check on the red and gray wires. If there is no voltage on one of them, then you need to change the switch.

Causes of fuse blown.

If the wipers do not work in two positions of the switch, then most likely the fuse has blown, which serves to protect the circuit from short circuits and overloads. When the wiper control lever is set to the "off" position and the blades do not stop at the bottom of the glass or anywhere else, the problem is in the gearbox. It is there that a special switch is installed, which ensures that after turning off the brushes remain in the desired position.

Due to heavy overload of the electric motor, overheating of the wiring, or exposure to water, the fuse may blow. Replacing it is easy, but the cause of the burnout must be found out and eliminated.

The procedure for repairing a windshield wiper is removing and installing a gearbox with a motor:

The procedure for repairing a windshield wiper is removal and installation.

Repair of VAZ 2101 windshield wiper, disassembly and assembly

The procedure for repairing the VAZ 2101 windshield wiper

1. unscrew the wiper blades with holders;
2. disconnect the wires from the windshield wiper motor and the terminals from the battery;
3. remove the equalizers by first unscrewing the nuts securing the lever fittings;
4. dismantle the windshield wiper assembly, first unscrewing the nuts of the motor bracket;
5. Perhaps a workbench will help you to remove the gearmotor from the mounting bracket, and then disassemble the lever drive;
6. Installation of the windshield wiper after repair is carried out in the reverse order.

After you have repaired the windshield wiper , you need to connect it so that it makes several working cycles. The wiper blades must be installed (in the lower position) – 50 mm from the glass seal. After complete assembly, we check what we have achieved and, if necessary, make adjustments.

Below we will look at how to disassemble and then assemble an electric windshield wiper motor and its gearbox.

Why does the windshield washer not work?

All washer malfunctions are divided into two groups: electrical and mechanical.

Mechanical:

• Lack of liquid. In winter, you cannot use ordinary water, as it may freeze. If the water still freezes, you need to warm up the car engine and leave it in a warm room.
• The fluid supply hose may fly off or become pinched.
• The nozzles can also stop the washer from working. Poor quality of water and washer fluid leads to the fact that the fittings become clogged with dirt, rust, and washer fluid does not flow. The injectors are cleaned or new ones are purchased.

Electrical:

• Fuse F2(10A) has blown.
• The electric motor does not pump, no fluid flows, which means the terminals are oxidized. You need to clean the terminals and contacts and connect everything.
• Faulty switch. If the motor does not turn when voltage is present, then this is the reason.
• Check the pump motor by connecting it directly to the battery; if it starts spinning, then the fault is in the steering column switch.

Product Description

The compact windshield washer motor BAK.21109 is made from high-quality components and carefully balanced for stable operation over a wide temperature range. The small-sized electric windshield washer motor has been factory tested and certified for use in the Russian Federation and the countries of the Customs Union. The impeccable functionality of electrical equipment and low noise level during operation are based on the company's advanced developments and high quality assembly operations. This electric motor is completely interchangeable with the washer electric motor 2110-5208009.

. ATTENTION.

Don’t forget to replace the washer fluid in the washer reservoir with non-freezing fluid in winter. Freezing of the fluid in the reservoir can damage the windshield washer motor.

This product has official awards:

BelAK electric motors received the prestigious national award “Automotive Component of the Year 2016”.

We disassemble the turn switch for a VAZ 2107

And although many manufacturers of turn switches claim that this is a completely non-separable design, it can still be disassembled with some effort. Disassembly of devices is necessary when repairing it. It takes place in several stages:

1. Using a 3 mm drill, drill out the 2 upper rivets and remove the upper part that is attached to the tube;
2. After removing this part we see 2 more rivets that hold the ring;
3. Carefully remove the ring from the grooves, then you need to remove additional rings and levers.

We repair the device

In the VAZ-2107, the switches are located under the steering wheel of the car. If you suspect a malfunction, the first thing you need to do is find out the reason why this or that function does not work.

Repairing the switch

We remove the steering column switch on the seven. Having removed the first ring, then the headlight, stop and wiper levers, we get to the mechanism by which the turns are automatically turned off. We take it out and here lies the cause of all the troubles: between the reeds there is a spring that breaks off and does not move the reeds in different directions. It is necessary to replace the spring; you can use a regular spring from a ballpoint pen. Next, we begin collecting all the rings and levers in reverse order. After finishing the work, we check how the levers and the turning mechanism work. To do this, we connect the pads and place the terminals on the battery; if all functions work, then we have completed the repair.

Also, the cause of a malfunction of the turn switch may be contamination or oxidation of the contacts. You can clean dirty or oxidized contacts; to do this, you need to slightly bend the “sagging” springs and other accessible parts. As a rule, after carrying out such cleaning manipulations, it is possible to restore the functionality of the switch.

Video on replacing the steering column switch

In winter, owners of a VAZ 2107 often encounter such a problem as a breakdown of the windshield wiper motor. Often the motor simply burns out; this happens when the wipers simply stick to the windshield in sub-zero temperatures. A large load is placed on the wiper motor and it simply breaks down. Today we will tell you how to replace the windshield wiper motor on a VAZ 2107 with your own hands.

– open-end or socket wrench 22; – socket head 10; – a small extension cord; – a crank or ratchet handle.

It is worth noting that quite recently we considered how a beginner could cope with replacing the thermostat on a VAZ 2107 with his own hands in a garage. The instructions are detailed, so all you need is the necessary tools and desire.

Replacing the wiper motor on a VAZ 2107

1. First of all, you need to unscrew the nuts securing the wiper arms, as shown in the photo below.

2. Then bend the lever and remove it from its seat.

3. Next, take a large 22mm wrench and use it to unscrew the trapezoid fastenings on both sides of both the right and left windshield wipers.

4. Then remove the plastic inserts.

5. Now you need to remove the hood seal, which is shown below.

6. And disconnecting the power plug from the wiper motor.

7. Remove it together with the wire from the hole in the body.

8. Next, we proceed to removing the motor, or rather, unscrewing the nuts that secure it, which become easily accessible after we bend the protective cover.

9. It is most convenient to unscrew using a ratchet handle.

10. After this, we press on the protrusions of the slots on the reverse side, on which the wiper arms sit, so that they fall inward, and after small manipulations with turns in different directions, the trapezoid assembly with the motor should be removed without much difficulty.

11. The final result of the removal procedure is shown in the picture.

12. If you decide to make a replacement, then the new part will cost you around 1,600 rubles completely assembled, that is, both the motor and the trapezoid.

Car wipers and the mechanism that controls them are a simple but important part of any car. If for some reason the device malfunctions or stops functioning altogether, visibility deteriorates, which may cause an accident.

Replacement

If the old motor has failed, there is no point in trying to repair it somehow. To buy a new part, you will have to spend very little money. And the replacement procedure on most cars is extremely simple.

I will describe the main stages of work associated with replacing this element of the windshield cleaning system of any car.

• Turning off the vehicle's power. A safety measure without which further work makes no sense. Be sure to remove the negative terminal from the car. It's simple but important. Otherwise, you not only risk burning the wiring, but also getting an unpleasant electric shock yourself.
• Search for a motor. It all starts with identifying where your windshield wiper motor is located. It depends on your car. On some cars, just lift the hood and you will immediately see the washer reservoir. The motor itself is located on the reservoir (partially inside) of the windshield wiper, into which the liquid is poured. Do you see the tank? If yes, then you are in luck. If not, then you will have to look for it by removing elements of the engine compartment. On some car models, the tank is hidden so that the fender protection has to be removed.

• Disconnect the connectors with wires from the motor. Then remove the tank itself.
• The hose and fitting are separated from each other. Don't forget to drain the liquid. Filling a new one will not be difficult. Yes, and for prevention it won’t hurt to do it.
• Using a screwdriver, push the intake seal out of the bushing. This will allow you to completely remove the windshield washer motor.
• Don't forget to install a new bushing when reassembling. This often leads to the washer pump itself breaking down. So the old bushing goes to the landfill.
• Reassemble the assembly in reverse order. Here many craftsmen relax, because they consider the work done. In fact, reassembly causes more problems than disassembly. Advice from someone who made similar mistakes. That is, from me. Do not try to remember the location of parts unless you are confident in your memory capabilities. We got distracted by something, forgot, got confused. This happens to everyone, and there is nothing wrong with it. To ensure proper reassembly sequence, you can record, mark, or label the parts in the order in which they are removed. This will make it easier to put everything back together the way it was before.

The instructions are for informational purposes only, as the procedure may differ depending on the car model. Consult your machine's owner's manual for assistance. This is the best visual aid for self-repair.

There is nothing complicated in this work. Even the car owner who prefers to solve most problems with the help of a car service can easily cope with it. Repairs cost several hundred rubles and take a maximum of a few hours.

Thank you for your attention! Subscribe, leave comments, share your own experience in repairs and don’t forget to tell your friends about us! It may also be interesting and useful for them.

Wipers VAZ 2107

The vehicle is operated in different climatic and road conditions. For safe and comfortable movement, the driver must have good visibility of the road situation, i.e. the windshield must always be clean. Windshield wipers provide mechanical cleaning of the windshield from dirt and sediment, improving visibility and increasing safety. We will consider possible problems with this mechanism and ways to eliminate them in more detail.

Principle of operation

The work of the wipers is quite simple and consists of the following sequence of actions:

1. The driver selects the desired operating mode of the windshield wipers using the steering column switch.
2. The entire windshield cleaning mechanism is driven by a motor.
3. The wipers move across the glass left and right at the selected speed, cleaning the surface.
4. When the mechanism is no longer needed, the steering column switch returns to its original position.

Components

The windshield wiper consists of the following main elements:

• lever mechanism (trapezoid);
• electric motor;
• relay;
• brushes

Trapezoid

One of the important elements in the windshield wiper mechanism is the trapezoid. On almost all cars this part is the same, and the difference lies only in the methods of fastening, the size and shape of the elements. The functioning of the trapezoid consists of transmitting rotational motion from the electric motor to the wipers, as well as ensuring the synchronous movement of the latter for high-quality glass cleaning. The trapezoid consists of rods, a body and a hinge.

Motor

The electric motor of the windshield wipers of the VAZ “Seven” is made as a single unit with a gearbox and is one of the main links of the mechanism in question. The motor consists of a stator with permanent magnets and an armature with an elongated shaft, at the end of which a screw is threaded. The purpose of this unit is to ensure the movement of the blades along the windshield. The device is considered reliable and fails very rarely.

Wiper relay

On classic Zhiguli cars, the windshield wiper has two operating modes - fast and intermittent with an interval of 4-6 seconds. It is to ensure intermittent operation that the RS 514 breaker relay is designed. Delayed activation of the wipers is used during light rain, when too frequent operation of the windshield wipers is not required, and when the mechanism is completely turned off, the glass is gradually covered with small drops of precipitation and needs to be cleaned. The product is connected to the general wiring using a four-pin connector. On the VAZ 2107, the breaker relay is located on the driver’s side on the left side panel under the plastic trim.

Brushes

Almost all passenger cars use two windshield wiper blades. On the “seven”, elements with a length of 33 cm are installed from the factory. Longer brushes can be installed, but a greater load will be placed on the electric motor, which will lead not only to slower operation of the mechanism, but also to possible failure of the motor.

Malfunctions of VAZ 2107 wipers and their elimination

Various malfunctions can occur with windshield wipers, which manifest themselves in different ways.

The motor has failed

Often, wipers may not function due to problems with the electric motor. Problems often arise due to the accumulation of friction products in the lubricant in the bushings, which leads to its thickening. As a result, the motor armature rotates with difficulty, which leads to burnout of the winding or burnout of the rotor lamellas. Another malfunction is wear of the electric motor brushes. In this case, when voltage is applied, the wipers do not work and sometimes are triggered when you hit the motor with your hand.

Which one can I put?

Instead of the standard “seven” engine, some car owners install a device from a VAZ 2110. This replacement is justified by the following positive qualities:

• greater reliability and power;
• windshield wiper closer;
• 3 speeds (requires a steering column switch from a Chevrolet Niva).

Such an electric motor is installed without any modifications to the mounting in its standard place. However, despite these advantages, some owners of the “classic” note that due to the higher power of the electric motor, the trapezoid breaks down much faster. Therefore, before making changes to the design of the windshield wiper, it is worth performing preventive maintenance on the old mechanism (clean the trapezoid from dirt and lubricate the rubbing elements and the motor itself with the gearbox).

The standard device also copes quite well with its tasks if it works properly.

Removing the motor

The windshield wiper motor is located behind the partition of the engine compartment on the left side. To dismantle the mechanism, you need to prepare the following list of tools:

• open-end or socket wrench 22;
• socket head 10;
• small extension cord;
• crank or ratchet handle.

We remove the part in the following order:

1. Pull the terminal off the battery negative.
2. Using a 10mm wrench, unscrew the nuts holding the wiper arms.

Motor repair

To troubleshoot the electric motor elements, it must be disassembled.

The only tools you need are a set of screwdrivers. We disassemble the node in the following order:

Unscrew the screws securing the plastic cover.

Trapezius problems

The fact that problems have arisen with the windshield wiper trapezium is indicated by interruptions in the operation of the wipers. They can appear in the form of an arbitrary stop during operation or too slow movement of the brushes. In addition, a sign of problems with the trapezoid are jumps or extraneous sounds during operation. The problem is caused by the appearance of oxide in the trapezoid bushings, as well as corrosion on the axles. If such faults are neglected, then over time the electric motor will fail due to high loads.

Mechanism repair

To remove the trapezoid, we perform a similar sequence of actions as when dismantling the windshield wiper motor. The only tool you need is a flat screwdriver. We disassemble the mechanism in the following order:

We remove the stoppers from both shafts by prying them up with a screwdriver.

Video: replacing the trapezoid on the “seven”

Correct installation of the trapezoid position

After carrying out repair work on the trapezoid, you need to set the correct position of the mechanism. To do this, perform the following steps:

We set the motor to the initial position, for which we connect the block with wires, turn on the windshield wiper mode using the steering column switch, turn it off and wait until the electric motor stops.

Video: adjusting the position of the wipers

Wiper relay not working

When there is no intermittent operation of the windshield wiper, the main reason is a breakdown of the breaker relay. The way out of the situation is to replace the device.

Relay replacement

To remove the relay you will need a Phillips and flathead screwdriver. We carry out the work in this order:

Use a screwdriver to pry up the side panel holders and remove it.

Wiper switch malfunction

The “seven” steering column switch is responsible for enabling the following functions:

• turns;
• head lighting;
• wipers and windshield washer.

The switch is highly reliable and fails extremely rarely. However, sometimes it still has to be changed and this happens due to burnt contacts or wear of individual elements of the mechanism. To work you will need the following list of tools:

• head 24;
• head or key 8;
• crank or ratchet;
• flat screwdriver.

Switch replacement

To replace the switch, perform the following sequence of actions:

Use a screwdriver to pry up the decorative steering wheel trim and remove it.

Fuse burned out

A common cause of wipers not working is a blown fuse. On the VAZ 2107, the operation of the windshield wipers is controlled by a 10 A fuse link F2 located in the fuse box.

The mounting block is installed under the hood near the windshield on the right side.

Checking and replacing the fuse

If the wipers stop functioning, then first of all it is worth checking the integrity of the protective element. To do this, you can use a multimeter by turning it on to dialing mode. If the part is working properly, then the resistance will be zero. Otherwise, the element needs to be replaced.

Why does the fuse burn?

Sometimes it happens that a fuse-link burns out for no apparent reason. In this case, you need to check the entire electrical circuit from the power source to the motor. Failure of the fuse indicates a short circuit, i.e. too high current consumption exceeding the rating of the protective element. The problem can also be caused by a short circuit in the wiring to the housing, jamming of the trapezoid due to lack of lubrication in the rods, which indicates the need for inspection and preventive maintenance of the mechanical part of the unit.

Windshield washer does not work

To remove dirt from the windshield, the washer is used together with the windshield wiper. The device sprays water or a special liquid. The main elements of this mechanism are:

• fluid reservoir;
• motor;
• nozzles;
• connecting tubes.

During the operation of a car with a washer, various problems may arise that lead to its inability to work:

• motor failure;
• fuse blown;
• kinking of tubes;
• breakdown of the steering column switch;
• poor contact on the power supply circuit.

Checking the motor

It is easy to check if the washer pump is not working properly. To do this, just open the hood and pull the lever of the steering column switch, which is responsible for the function of supplying fluid to the windshield. At this moment, the operation of the motor will be clearly audible. If this does not happen, then the malfunction may be caused either in the pump itself or in the fuse or other part of the electrical circuit. To make sure that the problem lies in the motor, we use a multimeter to measure the voltage when the washer is turned on. If there is voltage, but the pump does not work, then you need to take care of replacing it.

Video: checking the wiper motor on a “classic”

Injectors

If the motor is running, but liquid is not supplied through the nozzles, then the problem will not be difficult to identify, since there are only a few reasons for this phenomenon:

• clogged injector fittings;
• the supply tube has come off;
• kinking of the tube.

The malfunction can be determined by inspecting the tubes from the motor to the injectors. If there are no areas with kinks and the tube has not fallen off, then the reason lies in clogged nozzles, which can be cleaned with a sewing needle and blown out with a compressor.

Fuse and mounting block

The integrity of the fuse is checked in the same way as for windshield wipers. The same protective element as for the wipers is responsible for the operation of the washer. In addition to the fuse, sometimes the track in the mounting block through which power is supplied to the washer burns out. In this case, you need to disassemble the fuse box and restore the current-carrying element by soldering, having first cleared the varnish from the track.

Understeering's shifter

You should start checking the steering column switch on a VAZ 2107 if the fuse, motor and the entire electrical circuit through which voltage is supplied to the pump are in good condition. In this case, the wiring should not have breaks, melted insulation or other visible damage. To check the steering column switch, only a multimeter will be enough. Having disconnected the connectors from the device in question, we connect the probes of the device in the dialing mode with a two-pin block. If the switch is working properly, then when the washer is turned on, the device will show zero resistance. Otherwise, the mechanism will have to be replaced.

Video: checking the wiper mode switch

Main causes of failures of additional equipment

If the washer on the car does not work, it is necessary to diagnose it using simple techniques. This system may fail for a number of reasons, which are listed below:

1. breakdown of the injection pump;
2. fuse blown;
3. kinking or squeezing of the supply hose;
4. breakdown of the steering column switch;
5. freezing of water in pipelines or other devices;
6. loss of contact in the electrical network.

It is possible to determine the cause of the malfunction and the amount of costs to restore the system's functionality based on the results of a careful inspection. If you need to replace individual parts or elements, you can do it yourself. The device that blows the windshield to clean it from fresh or dried dirt does not work.

Most likely, you will need to replace failed equipment.

Wipers for headlights

Some owners of “Sevens” install windshield wipers on the headlights for ease of use of the headlights. With the help of these elements, there is no need to constantly clean the optics from dirt manually, which is especially important in rainy weather. To implement the mechanism, the following list will be required:

• headlight cleaner motors 2 pcs. (left and right);
• two transition strips;
• brush leads;
• brushes;
• washer reservoir with two pumps;
• five-pin relay;
• wiring with blocks;
• solenoid valve from the G8;
• tee and washer tube about 2 m.

As for the brushes themselves, they can be installed from both VAZ 2107 and VAZ 2105.

Also check out

1. Remove the plastic plug, unscrew the 2 nuts to “13”, then the wipers with their leads.

1. Remove the frill using a TORX T20 socket. Perhaps some of the bolts will be covered with plugs.