Replacing the windshield wiper motor of a VAZ 2110

The design of the windshield wiper on the VAZ 2110 is quite reliable and during normal operation the motor and the trapezoid itself can easily move all 300,000 km, which has been proven by the personal experience of many owners. But there are also exceptions to the rules.

It often happens that the splines are bypassed or the trapezoid structure simply breaks down. If you have such problems, the repair procedure will be discussed below.

To replace all the wiper parts, we will need the following tool:

screwdriver flat and Phillips
10 mm socket head
ratchet handle

To do this job, you first need to do some preparatory steps, namely:

Remove the windshield trim (jabot)
Remove the insulation and seal under the hood
Disconnect one end of the expansion tank rubber and move it to the side

Photo report on the removal and installation of the windshield wiper trapezoid on a VAZ 2110-2112

When all the preparatory steps are done, everything will look something like this. The arrows at the top show the attachment points of the two nuts:

You need to unscrew them, of course.

After this, we disconnect the clamp securing the expansion tank and, lifting it up a little, move it to the side to gain access to the third trapezoid mounting nut.

After this, the nut can be unscrewed; it is located at the very bottom:

After you have dealt with this, you can carefully turn the trapezoid and remove it from the left side, slightly bending the metal frame below the windshield to the side (the force required is very small - there is no point in talking about any real bending!)

And lift it almost all the way to take it out:

All that remains is to disconnect the power plug:

And now you can finally remove the entire structure of the trapezoid and the wiper motor from the bore. If you need to disconnect and replace one motor, then in principle there will be no difficulties with this - just unscrew it and replace it.

Installation of all removed parts occurs in the reverse order. It is worth mentioning the prices of these spare parts. The cost of a trapezoid assembly with an engine for a VAZ 2110 is about 2000-3000 rubles from the manufacturer AvtoVAZ. Chinese analogues cost about 2000 rubles.

Front windshield wiper motor for VAZ Classic, Niva, Oka

Repair of wipers on VAZ 2107

Dear customers, in order to avoid errors when sending a windshield wiper gear motor, please indicate your car model and year of manufacture in the “Comment” line.

The windshield wiper drive motor is most often replaced by the following terms: wiper motor, wiper motor (electric motor), gear motor drive, wiper motor, wiper gear motor, windshield wiper. Therefore, if you hear these terms, then know that we are talking about the same thing.

The electric motor of the wiper mechanism is designed to drive the windshield wiper arm system. The electric motor is installed in a niche under the windshield and is connected by a shaft to the windshield wiper lever system. Power supply and control of the operating modes of the electric motor are carried out using a standard connector. The motor and gearbox are made in a closed housing with protection from dust and atmospheric moisture entering the electrical parts and mechanisms of the electric motor.

The windshield wiper consists of a gear motor, levers and brushes. The electric motor of the cleaner is three-brush, excited by permanent magnets. To protect against overloads, a thermobimetallic fuse is installed in it, and capacitors and chokes are installed to reduce radio interference.

Technical characteristics of the windshield wiper gear motor 21030-3730000 Rated voltage 12 V;

Rated power 6 W;

Maximum current 2.8 A;

Rated speed 60 min -1.

Windshield wiper: 1 — rear armature shaft bushing; 2 — felt ring; 3 — electric motor housing; 4 - permanent magnet; 5 - anchor; 6 - collector; 7 — traverse with brush holders, chokes and thermobimetallic fuses; 8 — front armature shaft bushing; 9 — panel with noise-suppressing capacitors and limit switch contacts; 10 — block of intermediate gears; 11 - cover; 12 — gear housing; 13 — driven gear; 14 — output shaft of the gearmotor; 15 — block of intermediate gears.

The windshield wiper motor has three operating modes, they are activated by the right steering column switch. Intermittent mode is provided by a K2 type electronic relay installed in the mounting block. This relay also turns on the wiper motor at low speed when the windshield washer is turned on.

When the gearmotor operates at low speed in constant mode, the supply voltage is supplied to diametrically opposed brushes. When the gear motor operates at maximum speed, “+” power is supplied to the brush located on the side. To unload the contacts of the ignition switch, the electric motor is connected through an additional relay KB in the mounting block.

Other articles of the product and its analogues in the catalogs: 673.5205 100, ME 241, YaIUSH. 523612.015, 21030373000000.

VAZ 2101-074, VAZ 2121-213, VAZ 1111.

Any breakdown is not the end of the world, but a completely solvable problem!

What are the causes of problems with the gearmotor (electric motor) of the wipers in a VAZ family car.

How to independently replace the gearmotor (electric motor) of a windshield wiper on a VAZ family car.

With the AvtoAzbuka online store, repair costs will be minimal.

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What is a windshield wiper trapezoid and what is it for?

The trapezoids are around here somewhere!

The wiper trapezium is a special unit that converts the engine impulse into forward movements of the windshield wipers.

Simply put, it is she who is responsible for their movement along the windshield or rear window of the car. Since weather conditions are often unpredictable, and the windshield must provide complete visibility, failure of this part must be quickly identified and corrected.

Principle of operation

Most often, plastic bushings wear out in trapezoids.

Although, at first glance, it seems that the movement of the brushes occurs directly, in fact, a trapezoid, which is an electromechanical unit, is responsible for it. It works on the following principle:

The windshield wiper motor uses the finger, which drives the trapezoid itself.
Due to the connection of the gearbox and shafts, oscillatory movements occur, causing the brushes to move along the glass, cleaning it.

It often happens that the trapezoid fails. This happens especially often after or during the winter season. Some inexperienced VAZ-2110 owners turn on the “brushes” without bothering to clear the snow from the glass . Often the wipers freeze to the glass, and an attempt to move them ends in breakage. To prevent this from happening, you should always check the brushes before turning them on in winter for freezing .

Windshield wiper system design

Every car is equipped with windshield wipers. They perform the function of removing dirt and sediment from the glass surface. As a result, the driver always maintains a normal view of the road situation, even if there is heavy snow or rain outside. The efficiency of wipers is increased by washers that spray cleaning liquid onto the surface of the glass. As a result, wipers do a good job of removing stuck insects and dirt.

Many car models are also equipped with a rear window cleaner, and cleaning of the headlights with a washer is provided. As a result, driving safety during adverse weather increases. The operating parameters of the windshield wipers - the frequency of their operation and the speed - can be adjusted from the driver's seat.

Technical nuances are entirely determined by the type of mechanism and the type of fastener used. A standard wiper includes the following elements:

drive lever system (trapezoid);
leashes;
relay that forms the operating mode;
electronic control unit (if the machine is equipped with it);
electric motor and gearbox;
hinged fastenings;
brushes.

Depending on the type of control, the necessary equipment is provided. Manual control requires the presence of a corresponding switch under the steering wheel. When a car is equipped with an automatic windshield wiper control system, a rain sensor that monitors glass contamination and special control electronics are already required.

Although the glass cleaning system in cars is not very complicated, it is still necessary to thoroughly understand the principle of its operation. Next we will talk about the main features.

The operating mode of the windshield wipers is set using an electromagnetic relay, which receives the command and generates a control action on the electric motor. The operation of the brushes varies from vehicle to vehicle. This is either an intermittent mode with pauses between wiper strokes of 3–5 seconds, or movement at a constant speed or working in conjunction with spraying washer fluid.

The windshield wiper drive motor is powered from the on-board network. Each car model has its own wiring diagrams.

The movement is transmitted to the brush leads and directly to the windshield wipers through an electric motor with a worm gear and trapezoids (lever systems). Thanks to the trapezoid, the rotational movement is converted into swinging brushes. The latter, in turn, due to close contact with the glass, clean it of dirt and water.

A correctly adjusted and configured glass cleaning system does a good job of removing all contaminants, does not leave streaks, and especially does not cause mechanical damage. In addition, working windshield wipers operate silently. If failures are observed in the described processes, it means that there are malfunctions that need to be repaired promptly.

The trapezoid is a set of levers and rods that translate the rotation of the gearbox into reciprocating swings of brushes and leads. The functions of the standard trapezoid mechanism are:

ensure that the blades operate when the windshield wiper motor is turned on;
move with the required speed and amplitude;
synchronize the movement of the leads with two or more brushes on the glass.

The trapezoid is an important part of the glass cleaning system along with the drive motor. The occurrence of malfunctions, in particular backlash, in this mechanism directly affects the efficiency of operation. Therefore, trapezoid parts are made of sheet steel. This is a reliable material with high resistance to bending loads and the ability to retain its properties under various atmospheric influences.

According to the design of windshield wipers, one-, two- and three-blade trapezoids can be distinguished. In accordance with the operating principle, asymmetrical and symmetrical designs are used.

Whatever car model is considered, the windshield wiper drive motor is always designed approximately the same. It consists of an electric motor and a gearbox, most often a worm gear. A gearbox is needed to increase the force generated by the engine. Modern cars also use safety devices to protect against overloads, heating systems in the cold season, etc.

The gear motor, in fact, is the most important unit in the glass cleaning system, since it is it that sets the mechanism in motion. For the electric motor to operate under normal conditions, the brushes need to fit well against the glass, but at the same time slide easily along it. Otherwise, the motor will be overloaded.

There are two main windshield wiper control systems - electrical and electronic. By electric we mean a system where modes are switched manually. This is done using a special control knob under the steering wheel. It contains controls for turning on the wipers, setting a pause in their operation and selecting a cleaning mode. The disadvantage of this system is the need for constant monitoring by the driver.

If control of glass cleaning is entrusted to electronics, then minimal human participation is assumed. The car is equipped with a special electronics unit and a rain sensor. The latter measures the cleanliness of the glass. Electronic control implements many functions:

automatic switching on and off;
regulation of the speed and frequency of wipers;
shutdown when interference is detected on the glass surface;
supply of windshield washer to improve the quality of cleaning;
Heated brushes to prevent freezing even when the engine is off.

Car owners decide for themselves which specific type of brushes to use on their cars. There are several types of them, differing in operational properties and design.

Frame wipers combine accessibility and good cleaning properties. The design assumes a tight fit to the glass surface. However, these brushes greatly lose their performance at low temperatures or at high machine speeds.

A more expensive solution is frameless brushes. They clean glass better than frame ones. Low temperatures impair their performance properties to a lesser extent. Also, frameless ones have a longer service life. However, they have a significant drawback - it is difficult to choose a blade model that optimally matches the windshield.

Hybrid windshield wipers are best suited for winter conditions. That's why they are sometimes called winter ones. Outstanding low-temperature performance is ensured by its moisture-resistant design and rugged design. Therefore, hybrid windshield wipers are most often used in regions with long and severe winters, where the issue of keeping car windows clean is especially pressing.

We recommend

“Frameless wipers: rules for selection and operation” Read more
Until 1999, the windshield wiper mounting was the same for most cars. At that time, the “hook”, or Hook, became widespread. It was shaped like the letter U. The brush snapped into the mount and was securely fixed there. Nowadays, cars use several different types of fasteners for glass wipers, which we will discuss below.

Side pin - Volvo, BWM and other manufacturers have been equipped with fastenings of this type since 2005. The windshield wipers are fixed with a side pin with a diameter of 17 or 22 mm.

Button, or Push Button - brushes 16 mm wide are fixed through this adapter. The mount simply snaps into place, and to remove it, press the corresponding button.

Pin lock - brushes are secured using a special lock. Used by Audi.

The above list is not all of the many ways to fix windshield wipers. Manufacturers often use brush latches of their own design.

The design of windshield wipers is not complicated, but not a single modern car can do without this device. Thanks to wipers, the driver can clean the windows from dirt directly from his seat and thereby increase visibility of the road. The presence of an electronic control system allows you to completely free a person from the function of controlling glass cleaning, increasing driving safety and comfort of the driving process.

How to determine that a trapezoid is “kirdyk”

Kirdyk is a slang word meaning an extremely bad situation.

It happens that the retaining ring of the bushing breaks and the rod simply flies out.

The slightest disturbance in the operation of the trapezoid can lead to incorrect operation of the wipers. Usually this part is replaced with a new one, although in some cases you can get by with installing a repair kit. Its cost is significantly lower than the price of the entire part, although repairs will take much more time. Here is a list of the main signs by which you can determine that a part will soon fail:

Windshield wipers begin to do their immediate job poorly. This occurs due to the weakening of pressure.
An unusual noise is heard during operation.
A backlash appears, which can be determined even visually, since the glass will be difficult to clean.
It happens that the brushes move in one direction easily, but back with difficulty, constantly slowing down.

All these problems lead to the fact that the windshield remains dirty, with streaks and smudges.

Repair kit for VAZ-2110

Most often, plastic parts are destroyed in the trapezoid. In this case, a repair kit can help.

When purchasing a repair kit, pay attention to the part number.

Checking the functionality of the mechanisms

How to give new life to worn out windshield wipers.
how to change rubber bands on frameless wipers: video instructions and advice from professionals replacing rubber bands in frame wipers At the repair stage or during a preventative check of windshield wipers, you can identify problems in the device in several ways. The quality of the mechanism is primarily determined by the function of the brush and its position in the brush holder. The cleaning elements must move freely and easily at the specified speed. The electric motor itself is checked by a tester. In particular, such diagnostics makes it possible to detect irregularities in contacts and connections. When disassembled, the device allows you to evaluate the condition of the gearbox gear - in particular, the mentioned teeth and threads on the rollers are checked. The remaining components can be checked with the naked eye, even with a superficial inspection.

Part of the old and new sample

Selecting a new part for a VAZ-2110 is not such a simple matter. Not everyone knows that there are old and new trapezoids.

Therefore, it is better to remove the old part and take it to an auto parts store. They are not only attached differently, but also differ in the connectors through which they are connected to the motor. If you can’t find an old-style trapezoid, and this is exactly what you have, you’ll have to redo the system or look for a used part.

VLT2110–5205010-Р

If the windshield wiper motor is working properly, you can only change the trapezoid itself.

Car windshield wiper motors

Most, if not all, purifier motors used today are permanent magnet motors. The motor is connected to the motor through a worm gear to increase torque and reduce speed. For two-speed operation, motors with three brushes can be used. Normal speed is ensured by two brushes placed opposite each other as usual. To operate at higher speeds, a third brush is used, which is placed closer to the grounded brush. This reduces the number of turns of the armature winding between them, accordingly the armature resistance decreases and the current and rotation speed increase.

The normal purifier motor speeds are 45 rpm at normal speed and 65 rpm at high speed. The motor must be able to overcome the static friction of the blade at a minimum speed of 5 rpm.

The characteristics of a typical car cleaner motor are shown in the figure. Two sets of curves show operating modes corresponding to normal and increased speed.

Purifier motors, or more precisely, the circuits associated with them, are usually short-circuit protected. This is necessary to protect the motor in case the brushes become blocked, for example when they freeze to the glass. In this case, a thermal relay or current sensing circuit in the purifier control unit, if equipped, is often used. The maximum time during which the motor can withstand current when the brushes are blocked is specified by regulatory documentation. Usually it is within 15 s.

Source

Replacement process

The easiest way to get rid of problems with VAZ-2110 windshield wipers is to contact a service station. There the trapeze will be replaced in an hour or an hour and a half. But if unscrupulous repairmen notice that the owner does not understand the cause of the breakdown at all, they can repair the car for half a day, saying that the problem is very serious.

Therefore, the best option that will save money is to replace the part yourself . This process works as follows:

First of all, you will need to dismantle the old trapezoid. To do this, you will have to disassemble and remove the windshield wiper arms. To do this, you will have to unscrew two nuts with a 12mm wrench. When removing the levers, you need to be careful, since powerful springs create a problem when removing them. It is better to bend the leashes first.

Disconnect the wiper motor gear pads.

Unscrew the nut of the left trapezoid fastening.

Unscrew the nut on the other side.

Unscrew the fastening of the gearmotor bracket.

Remove the trapezoid from the studs and remove it.

Only after this can the trapezoid be removed. The main thing is not to forget to disconnect all electrical connectors.

A new spare part must be assembled before installation, since it is in a disassembled state. When connecting parts, you need to make sure that all parts are aligned and adjusted. Only after this are the nuts tightened.

Before installing a new trapezoid, it is advisable to lubricate all its rubbing parts with graphite lubricant . Some advise using lithol , but it loses its properties at sub-zero temperatures.

Repairing a trapezoid using a repair kit

If the bushing in an old part is simply worn out, it is not necessary to change the entire trapezoid. It is enough to simply repair it using a repair kit . As a rule, it has everything you need. To repair the trapezoid, you will also have to remove it. When removing the wiper arms, you must try to act extremely carefully, otherwise you may damage the glass or paint on the edge of the hood.

Without wipers, it is almost impossible to overcome rain or snow, as visibility is reduced to a minimum. This is why it is important to keep your windshield wipers (the official name for windshield wipers) intact. This material describes the scheme by which the wipers work in a VAZ 2110 car, the main malfunctions, as well as windshield wiper repair.

How to remove the windshield wiper gear motor?

To remove the gear motor, we only need to unscrew 4 fasteners! But there are two nuances:

not convenient location;
you need to remember the position of the crank.

The crank is a curved rod from the motor to the trapezoid rods. If you do not install the crank correctly, there is a high probability of damaging the teeth on the new motor.

So:

Open the hood, disconnect the wiring block from the fuse block to the gear motor.
We remember (indicate with a marker) the position of the crank.
We unscrew the fastening of the piston to the motor with a key set to “13” and remove it.
Using a “10” wrench, unscrew the three bolts securing the gear motor to the trapezoid.
We take out the gear motor.

If the gear motor cannot be pulled out, unscrew the fastenings of the fuse block and move it away.

Device and possible malfunctions

To understand the operation of the wipers, you will need an electrical diagram, which is present in the VAZ 2110 operation and maintenance manual. You also need to know what the unit consists of:

The trapezoid is the main part through which the motor transmits movement; the trapezoid most often wears out, and as a result, repairs are needed.
Electric motor - due to this unit, the wipers move; the motor can burn out, which will cause the failure of the entire unit.
Pump - this element is needed to pump cleaning fluid into the wipers. If the pump breaks, then you can forget about keeping the front window clean, although the wipers will still run across the window.
Tank - everything is obvious here, it stores window cleaning fluid.
Windshield wiper – mounted on a trapezoid, performs a cleaning function. First of all, you need to pay attention to the size of the windshield wiper.

Repair and replacement are required when the motor is damaged, since it cannot be repaired. The trapezius also very often fails, but sometimes it can be restored. The assembly diagram is quite simple, so the owner of a VAZ 2110 will quickly discover the reason for the malfunction of the assembly.

Connection diagram

If you encounter any difficulties, this diagram will help you figure out what you are doing wrong.

wiper gearbox (1);
thermobimetallic fuse (2);
motor (3);
washer valve (3);
mounting block (4);
ignition switch (5) and relay (6);
switch (7);
K3 front wiper relay (8);
“A” – the contacts of the wiper pads are marked;
“B” – output to pin 30 of the generator terminal;
a – second speed;
b – first;
c – switch spring;
d and e – his contacts;
noise filtering capacitors – C1, C2;
chokes – L1, L2.

Repair

To repair this unit, you need a minimum of tools:

Set of keys and sockets.
Screwdriver Set.
WD-40.
Rags.
Replacement parts.

It is quite easy to determine which parts are not working. For example, if the wipers do not move, then the motor has failed. If the trapezoid moves, but the glass remains dirty, then the pump or tank is damaged. The size will help you understand what condition the part is in - if the size has decreased too much, then the element needs to be changed. In any case, you need to make sure of the speculations; for this you should analyze:

The first step is to dismantle the car's dashboard;
Next you need to find the relay related to this mechanism. It is screwed to the body of the VAZ 2110. If the electrical elements do not work, then the relay needs to be changed; repairs will not help;

Causes of wiper motor malfunction

The windshield wiper drive motor has a weak point in the form of a large number of contacts in the circuit. As a result, voltage losses are large, and even one poor-quality contact leads to deterioration in operating stability. However, the problem is not always in the engine itself. This means that you should not rush into the question of how to change the wiper motor without completely checking all the contacts in the electrical circuit.

Fuse . First thing to do is check the fuse. This is easy to do, but they fail quite often.
Performance . Pay attention to the switch, whether it closes and opens the electrical circuit correctly.
Operating parameters . Check the resistance at the breaker terminals using an ohmmeter. If there is no resistance, then this is a sufficient reason to replace the breaker.
Correct connection . Without turning on the wipers, measure the resistance between ground and terminal No. 4. If the device readings are different from zero, it is necessary to ensure normal grounding.
Measure the voltage at terminal No. 5 with the windshield wiper turned on at low speed . If the value matches that on the battery, then the lack of movement of the motor indicates the need to study the next section, which tells how to change the wiper motor.

Causes of breakdown and diagnosis of the windshield wiper

Depending on the symptoms of the breakdown, we will go from simple to complex. For example, if one of the modes does not work, or the wipers freeze in a certain position, there may be several reasons: both mechanical and electrical.

Here is an approximate list of malfunctions of elements of the windshield wiper system:

The fuse has blown. Check fuses F1 and F18.

They are located in the passenger compartment fuse box to the left of the driver.

The windshield wiper relay is faulty. Most Lanos have a wiper relay MCC 52.3747-02 installed. There are analogues, but you need to check the contacts before purchasing. It is better to install a native relay.

The main problem with it is that shaking causes cracks to appear on the board and traces. If you have experience working with a soldering iron, you can solve the problem yourself, but the relay costs a penny, so most often it is simply replaced.

Replacing the windshield wiper drive gearmotor

To replace the motor, we will need a strong flat-head screwdriver or a small mounting blade, a 10-mm socket and a can of aerosol penetrating lubricant, for example, WD-40.

The first step is to remove the negative terminal from the battery so as not to damage the electrical equipment. Now remove the windshield wiper arm by removing the plastic cap and unscrewing the nut.

Then remove half of the plastic cover. It is attached to four plastic pistons.

Remove part of the hood seal.

It is important not to forget about the corner piston, which is located on the right under the windshield.

When the pistons are removed, carefully lift the left side of the trim with your left hand and remove the corner of the trim from under the wing. This must be done carefully so as not to break the fragile plastic.

After we removed the trim, we had access to the windshield wiper trapezoid. We find the ball mount of the drive crank to the trapezoid and, using a screwdriver or mounting blade, pull the trapezoid rod off the crank. If you have difficulty with this, use a penetrating lubricant.

Causes of breakdown and diagnosis of the windshield wiper

Here is an approximate list of malfunctions of elements of the windshield wiper system:

The fuse has blown. Check fuses F1 and F18.

They are located in the passenger compartment fuse box to the left of the driver.

Poor contact in the steering column switch. This can be either a contact block or contacts inside the switch. The switch is rarely repaired; it is usually replaced with a new one.

Poor contact in the connector on the gearmotor of the trapezium wiper drive.

If after cleaning the contacts on the motor block nothing has changed, move on to the next point.

The motor itself is faulty. This point is worth dwelling on in more detail.

We repair and replace the windshield wiper motor ourselves

The windshield cleaning system in your car should always be in working order. After all, no one knows when to turn on the wipers, and the driver’s safety while driving largely depends on them. We will tell you more about how to change the windshield wiper motor yourself and in what cases it is necessary below.

What is needed to carry out the work and the article numbers of parts required for replacement

To carry out work on removing and replacing the trapezoid and wiper motor on a Priora, you will need a minimum set of tools. These include:

13" head and ratchet;
Phillips head screwdriver;
head at "10".

In addition, if the trapezoid or engine is being replaced, then these parts must also be purchased. It is recommended to choose original devices, so their article numbers are presented below:

trapezoid - article 2170-5205015;
wiper gear motor - 842-3730-50 or 2123-523612.040.

The wiper motor is correctly called a gearmotor, since it consists not only of an electric motor, but also a set of gears through which rotational movements are transmitted.

In addition, when removing products you will need to use gear lubricant. It is needed to lubricate the gear unit and rods. When the tools and materials are ready, you can start working.

Diagram of the Priora windshield wiper system

This is interesting! Priora is equipped with geared motors from the factory, which differ in rod diameter. They come in 10 mm and 12 mm. This is important to consider when choosing a new product.