Replacing the windshield wiper trapezoid on a VAZ 2108, VAZ 2109, VAZ 21099

Welcome! From today's article you will learn how to replace a windshield wiper trapezoid and repair it. You will also learn for yourself how to completely disassemble and reassemble the windshield wiper trapezoid. The replacement of the trapezoid will be carried out on cars, as can be seen from the title of the entry of the “Samara” family.

Note! Together with the repair of the windshield wiper trapezoid, the article also added the repair of the motor gearbox, which is also a very important and basic element in the work of the wipers!

When should you replace the trapezoid with a new one? In some cases, it must be replaced if it fails, and in some cases it does not need to be replaced with a new one at all; it is enough to simply remove it and then repair it.

When the trapezoid fails, as a rule, the car's wipers begin to work incorrectly, that is:

• They may work slowly for no apparent reason.
• Or not work at all.

Why don't the wipers work on the VAZ 2109?

The windshield wipers do not work on the VAZ 2108, 2109, 21099. Failure to operate the windshield wipers is a very common malfunction on the VAZ 2108, 2109, 21099. Its main causes are problems with the electrical part and mechanical failure of the windshield wiper elements.

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Replacement

The process of replacing brushes on a VAZ 2109 is not difficult. The type of fastening on all machines in this series is a hook. Installing new brushes includes the following steps:

• the leash should be located perpendicular to the windshield - it is fixed in this position;
• The plastic body of the fastening is squeezed with two fingers - after which, by rocking, the part is pulled out of the seat.

It is necessary to carry out all actions as carefully as possible. Otherwise the plastic may be damaged

It is advisable to carry out replacement at a positive temperature. When negative, the plastic becomes brittle and very easy to damage. If the owner of the car does not plan to use the old brush in the future, there is no need to stand on ceremony with the fastening.

Signs of breakdown

Why might the wipers not work? There are quite a few reasons, since VAZ 2109 windshield wipers consist of many components.

Failure or partial failure of any of them can lead to failure or disruption of the proper operation of the wipers.

Signs include the following:

• The wipers have stopped completely and do not respond to pressing the levers;
• The intermittent wiper mode has stopped working;
• The wipers are too slow;
• The windshield wiper operating mode activated from the interior does not correspond to the actual movements of the blades.

Like the symptoms, the causes of the malfunction can be varied:

• Oxidation of contacts;
• Fuse failure;
• Open circuit of wipers;
• Worm gear malfunction;
• Switch failure;
• Damage to the electric motor of wipers, etc.

To troubleshoot problems with the wipers on your VAZ 2109, it is not at all necessary to contact a service station. The work can be done with your own hands, saving a decent amount of money.

Repair consists of performing several operations:

• Disassembling the unit;
• Troubleshooting;
• Eliminating the causes of purifier failures;
• Reassembly.

The first step is to learn how to remove windshield wipers. This will give you access to the device and all its components.

Dismantling by a wiper is carried out for their repair, replacement, modernization or when working with other components of your car.

It is enough to follow the specified sequence of actions and first familiarize yourself with the wiper diagram in order to do everything correctly.

1. First, disconnect the negative terminal of the battery to de-energize the car.
2. Remove the brush arms by moving them to a vertical position and unscrewing the fastening nuts. Unscrew the nuts carefully so as not to push the lever out. Otherwise, under the action of the spring, it will fly into the glass and break it.
3. By unscrewing the fasteners, the levers can be removed. It is not always possible to do this manually, so arm yourself with pliers. Be careful not to damage the threaded area. To avoid this, screw the nut back onto the splines, but not completely.
4. Remove the protective caps made of plastic from the slots on each side.
5. Unscrew the upper mounting nuts with the bracket and remove them. Under them there are rubber washers, which are also dismantled.
6. Lift the hood and disconnect the wiring harness that powers the wiper motor.

1. Unscrew the heater fan mounting screws and move it slightly to the side. This way, when dismantling the purifier, it will not interfere with you.
2. Remove the cover from the relay and fuse box. You need to remove not only the wiper relay, but also everything else. Otherwise, they will interfere with your further processes.
3. Unscrew the lower fastening nut of the mechanism, remove the plastic holder of the wiring harness from the electric motor from the hole in the car body. Now you can remove the holder so that it does not get lost during the repair.
4. All that remains is to push the mechanism roller inside, then lift the electric motor and the windshield wiper mechanism slightly up and to the side. This way you can easily remove the node.

After completely disassembling the unit, you can check the condition of each wiper mechanism and determine the cause of any malfunctions.

Checking the status of elements

By disassembling the design of the wipers on your VAZ 2109, you can identify the damaged components that led to the problem. We will tell you exactly how to find the culprits.

How to remove AVS wipers?

It turned out to be simple. We pry up this plug or whatever it’s called, lower it all the way and pull it out. And then we turn its upper side towards ourselves, and the lower part towards the windshield, drag it and remove it.

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Dimensions

The driver and passenger side brush lengths are different. The difference is small - only 20 mm. If possible, avoid installing brushes of the same length. Otherwise, a path of water will form in the middle of the windshield during rain. Which will lead to a significant deterioration in visibility. The rear window is equipped with a 300 mm long brush.

The rear hemisphere allows for the installation of a brush 400 mm long. In this case, the lower part of the window will not be affected. But you will have to limit the stroke of the brush on the gearbox. To do this, you need to disassemble the motor that drives the brush.

Original articles

It will no longer be possible to find original parts for this car produced by AvtoVAZ.

It is only important to note: in the assortment offered by stores, it will not be difficult to choose a high-quality analogue. In the last years of car production, the manufacturer no longer made brushes independently.

Ready-made solutions were purchased from Bosch.

Original articles used back in the Soviet Union:

Replacement options

There are quite a lot of companies involved in the production and sale of various brushes. Including for the VAZ 2109. When choosing, you should give preference to well-established manufacturers

But it is important to remember: there are always many counterfeits of well-known brands. Please inspect the boxes carefully before purchasing.

This will avoid purchasing a fake.

All presented brushes are divided into 4 main categories:

• frame;
• frameless;
• hybrid;
• winter.

Frame

Designated as classic. They are distinguished by their low price and simple design. The strength of such products is great. But a serious disadvantage is the poor aerodynamic shape. When air resistance occurs when driving at speeds over 100 km/h, the brush rises slightly above the glass surface. Which leads to a decrease in the contact area. Deterioration in the degree of glass cleaning.

Frameless

Brushes of this type do not have the disadvantages of classic models. They have an optimal aerodynamic shape and look aesthetically pleasing. At the same time easy to install. The only negative: low strength. At the same time, the cost is relatively low.

Hybrid

Hybrid – a design that has all the advantages of classic and frameless brushes. Today this is the best option. Low cost, coupled with low aerodynamic resistance and good cleaning properties, makes their use convenient and effective. The brush itself is made of a single piece of rubber. There is a frame inside. Some modifications are equipped with a spoiler. Which makes the brush even more streamlined.

Winter

Winter wipers are distinguished by their elasticity - even at sub-zero temperatures they clean the glass well. The effect is achieved by adding rubber to the rubber composition. It retains its flexibility regardless of the ambient temperature. As a result, its cleaning qualities do not change in any way.

When choosing new wipers, take into account:

• mode of operation of the vehicle;
• maximum driving speed;
• the region in which the car is located.

If the car is used in the Far North, then it is advisable to purchase winter brushes. Driving at speeds over 100 km/h - the windshield will only be cleaned with the proper aerodynamic shape (frameless, hybrid blades). If you have no experience, you should contact a consultant.

Some drivers purchase several pairs of brushes at once:

• for summer;
• for winter;
• for long trips and highway driving.

It is very comfortable. Allows you to avoid unnecessary expenses. Spare parts are always available.

Windshield wiper trapezoids

Replacing the Windshield Wiper Trapezium The main reason that you need to replace the windshield wiper trapezoid is the slow operation of the wipers. The trapezoid is also replaced in case of serious mechanical damage. To replace it, you must adhere to a certain technological sequence.

• Under the hood, the wires connected to the fuse block are disconnected.
• The protective casing covering the heater fan is removed.
• The stove filter is removed.
• The heater motor is disconnected. You just need to move it to the side, there is no need to remove it.
• The decorative trim is removed from the wipers.
• Under the protective rubber cover there is a nut that secures the windshield wiper.
• The cover lifts slightly and it unscrews. The janitor is removed.
• The wiper shaft is freed from rings and gaskets.
• The second windshield wiper is removed in the same way.
• Under the hood, the bolts securing the trapezoid to the body are removed.