Fuel filter VAZ 2110-2112: replacement instructions, where it is located and how to remove it

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Without fuel, as you understand, you won’t be able to go anywhere in your car. Well, unless you push it from behind or tie it to another car on a tow rope.

But fuel can be different, plus it can and does have all sorts of impurities, resins, condensation, dust, dirt. To protect the fuel from all this, you need a fuel filter for the VAZ 2110. Over time, the filter loses its former efficiency, it cannot cope with the tasks assigned to it. Consequently, fuel enters the engine of lower quality, which provokes an increase in fuel consumption, accelerated failure of consumables and a decrease in engine life.

Selecting a fine filter

The abundance of consumables on the market makes it difficult to choose. Surveys show that more than a third of “ten” owners use the BIG brand. The brands SCT, Bosch, Mann and Nevsky have proven themselves well.

“Experts” recommend assessing consumables visually by opening the casing. It is unlikely that such an “examination” makes sense. The differences are not fundamental; they are impossible to see with the naked eye. Universal advice - buy one that you don’t mind spending money on.

Replacing the fuel filter yourself

The procedure for replacing the fuel filter takes approximately 10–15 minutes. The car owner can easily spend this time, saving on the services of service station specialists.

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On different VAZ modifications, the fuel filter may be located differently:

On carburetor engines, the filter is located between the gas tank and the engine itself. To make it easier to find it, you can open the hood, find the vacuum brake booster, and above it is a reservoir with brake fluid. The filter is located near this tank;
On injection models, you do not need to open the hood - the filter is located on the bottom of the car. That is, access to it is possible only from below. The fastening area is under the second row of seats in the middle of the beam.

Signs of abnormal fuel system operation

Even if the car is operating normally, it is necessary to change the filters according to the manufacturer’s recommendations (every 30 thousand kilometers). Premature replacement is carried out if certain symptoms are present:

the car begins to twitch when driving;
fuel supply to the engine is difficult due to severe pollution;
It becomes difficult to start the engine when cold.

Coarse or fine filters can become clogged for only one reason: the use of low-quality fuel. Accordingly, if you regularly refuel at a proven gas station, where you have never encountered the sale of bad gasoline, then the service life of the filter elements can be extended.

How to replace the fuel filter on an injector

VAZ of the tenth family, running on injection-type engines, have a more complex structure. This is due to the fact that the filter is located under the car body. To remove it, you will have to either crawl under the car or drive the car into a hole.

The location of the filter on the rear beam on the bottom is typical for injection modifications of the VAZ

In any case, before starting work, it is necessary to relieve the gasoline pressure in the fuel system. The easiest way to do this is this:

Fold down the rear seat cushion in the passenger compartment. Below it is the fuel tank hatch.
Open the hatch and disconnect the wiring harness from the fuel pump located in the tank.
After this, start the engine and wait until it stalls on its own.
Start the engine again to achieve a maximum reduction in the fuel level in the system and, accordingly, pressure.

Is it possible to change the filter without involving specialists?

The procedure for removing the filter from the injection VAZ 2110, 2111, 2112 is as follows:

Provide yourself with convenient access to the rear beam of the vehicle.
First, wipe the filter itself with a rag to remove any dirt and grime from it, then spray the fastening joints with WD-40.
After 5–10 minutes, when the liquid is absorbed, you can unscrew the fuel lines from the filter: use one wrench to secure the filter nut, and use the other to turn the line nut.
After disconnecting the tubes, gasoline may leak out (it is better to place clean containers or a rag under the filter to absorb flammable liquid).
You will see rubber rings at different ends of the filter after disconnecting the hoses. They can be immediately disconnected with the blade of a flat-head screwdriver.
Next, remove the filter itself.

The product is replaced in the reverse order. Before installing the filter, it is recommended to lubricate the rubber seals with gasoline.

How to install a fuel filter on a carburetor

The simplicity of the design of carburetor modifications of the VAZ 2110–2112 allows you to replace the fuel filter in a matter of minutes. However, to avoid injury, work should only be carried out with a cooled engine and after releasing the pressure. You need to do this:

Fold down the rear seat in the cabin. Directly below it is the fuel tank flap.
Use a flat-head screwdriver to unscrew the hatch screws, after which the cover is removed.
There is a pump in the gas tank itself - you need to disconnect the power harness from it (remove the terminal with the wire cable).

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After this, you will need to start the engine and wait until it stalls due to lack of fuel. It is recommended to start it several times until the engine stops starting.

On carburetor VAZ models, the filter is located under the hood

Then you can proceed directly to dismantling the fuel filter:

Open the hood.
Next to the brake fluid reservoir there is the filter itself, two fuel lines are connected to it.
Using a Phillips screwdriver, first one pipe is disconnected, and then the second. It is possible that there is still fuel left in the system, then gasoline will flow from the hoses. It is best to immediately place a container under them or plug the holes with a bolt of suitable diameter.
The filter can be easily removed and a new one can be installed in its place.

The hoses can be connected in any order. The main thing is not to mix up the fuel supply and return hoses when working.

What fuel filtration systems are installed on VAZ 2110–2112 cars

Drivers know firsthand how difficult it is to find a gas station that sells truly high-quality gasoline. If when traveling around the city you can still refuel at the same proven gas station, then when traveling and business trips you have to use the fuel that is offered on the highways.

To protect the engine from gasoline impurities and deposits, the fuel system includes an element such as a filter. Special mesh filter coatings retain fine sediments, transferring purified fuel to the engine.

On VAZ 2110–2112 cars with engines with 8 and 16 valves, different types of filters are installed. Typically, the factory equipment involves the use of a Russian-made Salyut filter. Car owners prefer imported spare parts when replacing - Mann, Big.

The Big filter is a practical and durable element for purifying gasoline from impurities

The car operating manual recommends changing fuel filters every 30 thousand kilometers . However, drivers often neglect these recommendations and drive the car “to the last” until the engine begins to act up.

Not all owners of cars of the tenth family know that AvtoVAZ installs two types of filters: coarse and fine. In this case, the coarse filter is located directly in the gas tank itself, and the fine filter is under the hood, before entering the carburetor or injector.

Which is better - replacing or cleaning the filter element?

In some cases, if the filter resource has not yet been fully exhausted, car owners resort to such an operation as cleaning. To do this, you will need to disassemble the filter housing and blow it out with a can of compressed air or a conventional pump. Typically, this procedure allows you to restore its throughput and quality of gasoline purification.

However, not all car owners note the advisability of such an operation. If any operational problems occur, it is best to immediately replace the filter. Moreover, the rubber seals will need to be changed every time after its removal.

The fact is that any new product will work better than a cleaned old one. In addition, the cost of fuel filters for the VAZ of the tenth family is such that every driver can afford to buy this element.

Thus, any driver can change the fuel filter on VAZ 2110, 2111, 2112 cars. Depending on the type of motor, the procedure will be carried out either in the garage or in the inspection pit. Taking into account the precautions and basic recommendations for dismantling and installation, it is not difficult to replace the fuel filter within 10 minutes.

According to technical regulations, the fuel filter on a VAZ 2112 is replaced at intervals of 30,000 km or at least once every two years. If signs of clogging appear (the appearance of “jerking” of the car, increased noise of the fuel pump), then this procedure must be carried out earlier.

Security measures

Remember, you are working with fuel. Therefore, you need to protect yourself and everything around you. To do this you need:

Do not smoke during repairs. Even a small fire can lead to a large fire that can spread far beyond your garage. Especially if you are in a garage co-op;
Have a working fire extinguisher in the immediate vicinity of the workplace;
Ensure ventilation of the work area. It is best to work outside, but since there may not be an inspection hole there, and it is almost impossible to organize a lift, open the garage door completely or even turn on the fan so that it expels fuel vapors from the garage to the street;
If you get flammable on your skin, be sure to wash the area using soap.

New fine filter

Fuel filter replacement process

General view of the fuel filter

Replacing the fuel filter does not require special tools or skills. But, there is one nuance that is worth noting and remembering for all car enthusiasts. When repairing or replacing fuel cells, special safety precautions must be taken, since gasoline in the fuel lines is under pressure and may splash in the face during dismantling.

Now that we have dealt with the main nuances, we can move on to the actual replacement process. Let's look at the step-by-step replacement instructions:

We install the car on a viewing hole or lift.
Relieve pressure in the fuel system.
Now, you need to clean the surface of accumulated dirt. Then, it is recommended to fill everything with WD-40 so that the rusted bolts can be loosened better.
Using keys 17 and 19, unscrew the filter on one side and the other. On the second generation 2112, clamping blocks are installed instead of bolts, so keys are not needed, and you just need to press a button to remove the line from the filter.
Unscrew the filter mounts
Disconnect it from the fuel line.
Unscrew the clamp using a 10mm wrench
Remove the filter from its seat
We dismantle the clamp and take out the filter element.
We carry out the assembly in the reverse order.
New fuel filter installed on a car

This makes it easy and simple to change the fuel filter. It is worth noting that the filter itself has a designation of the direction of flow, so during installation you need to correctly set the direction of fuel flow.

Selecting a filter for a 16 valve valve

The choice of filter determines how well the fuel will be filtered. As practice shows, in the CIS there is a lot of “bad stuff” that can harm the engine. Therefore, the choice should be taken seriously.

So, let's look at which filters are suitable for the VAZ 2112.

Original

21230-1117010 is the original catalog number of the fuel filter, which is installed on 2112. The average cost is 250 rubles.

Analogs

Fram G5915 fuel filter is universal, suitable for the entire front-wheel drive VAZ family

Also, there are a number of analogues that can be safely used for installation. They fit perfectly into standard seats and have a service life no worse than the original.

BIG Filter GB-320 (RUB 150).
Fram G5915 (180 RUR).
Purflux EP220 (200 rub.).
Fiaam FT5372 (300 rub.).

All these filters are certified and also recommended by auto mechanics for installation on a car.

Preparatory activities

You don't have to spend a lot of time replacing the fuel filter. The process is easy and does not require the involvement of experienced specialists. In addition, the services of technicians from service stations are expensive. You can do everything yourself and no less efficiently than experienced specialists.

To get started, arm yourself with a set of tools and auxiliary materials, which include:

A set of keys for 17 and 19 millimeters;
Almighty lubricant WD40;
A container for draining excess fuel and unprocessed fuel onto the filter;
Dry, lint-free rags;
Gloves and closed shoes.

Let’s say right away that if you don’t want or are not ready to do such work with your own hands, it’s not too late to stop. You can entrust your VAZ 2110 and the replacement of the fuel filter on it to specialists. It will cost money, but you guarantee yourself a high-quality task.

If the work doesn’t scare you, then let’s get started.

Replacing fuel filters

There are fewer problems with replacement on a carburetor engine. The fine filter is visible when you lift the hood. It is attached to the hose section with ordinary clamps. The arrow on the body indicates the direction of fuel movement: from the fuel pump to the carburetor.

Carburetor, fuel pump and fuel intake strainers require replacement extremely rarely. The manufacturer recommends cleaning them with a hard brush, rinsing them with gasoline or acetone and blowing them with air.

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Location of fuel injection engine filters

A coarse strainer protects the inlet of the electric fuel pump located in the fuel tank. To access it, you need to remove the electric fuel pump through the hatch under the rear seat.

The designers of the VAZ 2110 placed the fine filter at the rear of the car under the tank.

The designers of the VAZ 2110 placed the fine filter at the rear of the car under the tank

From the point of view of ease of access, this is not the best solution. To get to the filter you need to drive the car onto an overpass. But do not forget that it works under pressure of several atmospheres. If the housing ruptures, a gasoline spill will cause minimal harm.

Replacement frequency

The manufacturer recommends changing the fine fuel filter of a carburetor engine after 15 thousand kilometers. Engines with injection - half as often, after 30 thousand km.

In practice, motorists usually change filters more often, motivating their actions by the low quality of gasoline at gas stations. They can be understood. Repairing the carburetor or injectors will be more hassle and cost more money than frequent replacement.

As for replacing the electric fuel pump strainer, there is no information about this operation in the list of maintenance work. The manufacturer believes that during the estimated service life of the vehicle, replacement of the electric fuel pump and filter will not be necessary.

However, cars usually last longer than the developers intend for them, so sometimes the coarse filter has to be changed due to interruptions in engine operation.

Filter replacement criteria

Signs of clogging:

car jerks, which at first only occasionally occur at high speeds, but over time become more frequent and appear at medium speeds;
reduced engine power (does not pull);
poor acceleration dynamics (stupid);
problems with fuel supply when starting the engine; you have to turn the starter for a long time before enough fuel reaches the injectors;
poor fuel supply when there is little gasoline in the tank;
black smoke from the exhaust pipe, because due to supply problems the engine runs on a very lean mixture.

If the above symptoms appear, measure the pressure in the fuel supply system (FSS) with a pressure gauge using the fuel rail fitting. It differs for different motors.

If there are signs of fuel filter clogging, measure the pressure in the fuel supply system with a pressure gauge using the fuel rail fitting

Table: replacement of elements according to pressure criterion

Engine model	Pressure in SPT	faulty part
kPa	kgf/cm²
2111, 2112	>325	>3,3	pressure regulator
21114, 21124	>400	>4
2111, 2112	<284	<2,8	fuel filter
21114, 21124	<364	<3,6

When the problem is in the fuel filters (low pressure), the fine filter should first be replaced. If this does not help, wash or replace the electric fuel pump strainer.

Since the launch of the “ten” into production was constantly postponed due to a banal lack of funds, designers and constructors, willy-nilly, had the opportunity to modify the car and “refresh” it taking into account new trends. Perhaps that is why the VAZ-2110 design project was accepted only the third time. In parallel with the improvements in appearance, the content was also changed. In particular, thanks to the forced pause before the car was put into production, VAZ mastered fuel injection, without which entering foreign markets in the early nineties was simply impossible.

Change or clean

The mesh filter can be cleaned, washed and blown, or replaced with a new one. In the first case, the owner will undoubtedly save a certain amount, but will spend more time.

People rarely look into the gas tank. As a rule, if the electric fuel pump grid is clogged, it is completely clogged. Cleaning is possible, but it does not always completely restore the properties of the filter.

As a rule, if the electric fuel pump grid is clogged, it is completely clogged

The pressure in the system increases after cleaning, but since it is not always possible to completely clean it, there is a high probability of clogging again, and this happens much faster than the first time.

A new strainer for an electric fuel pump is not so expensive that you would have to do extra work for the sake of dubious savings.

Replacing the fuel filter

The fuel supply systems for engines of cars of the “tenth” family differ from each other. Externally, differences are noticeable in the design of the fuel filter. Motors 2111 and 2112 are equipped with filters in a housing with threaded fittings, while in engines 21114 and 21124 the fuel lines are attached with clips.

Engines 2111 and 2112 are equipped with filters in a housing with threaded fittings, while fuel lines are attached to filters on engines 21114 and 21124 with clips

The modification of the installed filter should be clarified by external inspection before purchasing a new one to replace it.

To work you will need:

open-end wrenches 10, 17 and 19 mm,
screwdriver,
container for gasoline (bucket),
overpass, inspection hole or lift.

Replacing the filter for engines 2111 and 2112

Disconnect the battery.
Raise the car with a lift.
Place the bucket. Carefully unscrew the outlet fitting using 19 and 17 mm wrenches. Collect gasoline leaking from the fuel line into a container.
Unscrew the inlet fitting.
Loosen the clamp bolt and remove the filter.
Install a new one, taking into account the position of the arrow on the housing. It indicates the flow of fuel from the gas tank to the injectors.
Tighten the clamp.
Connect the fuel lines to the fittings, tighten the threaded connections. Do not use old seals and washers, install fresh ones from the purchased kit.
Connect the battery. Start the engine. Make sure it is sealed.

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Photo gallery: replacing the fuel filter of engines 2111 and 2112

After loosening the clamp, remove the filter. Carefully unscrew the outlet fitting using wrenches 19 and 17. Loosen the clamp with a wrench 10.

Obviously, the appearance of the latest developments from VW and Audi has significantly influenced the image of the “ten”. Like the Eighty, the VAZ-2110 received a barrel-shaped body with soft lines and smooth transitions from volume to volume. The general “slickness” was also facilitated by glued glass, which appeared on the “ten” for the first time on a production car in the CIS.

Replacing the filter for engines 21114 and 21124

Before depressurizing the system, relieve fuel pressure:

De-energize the electric fuel pump in one of the following ways: by disconnecting the power connector from it or by removing the fuse or the fuel pump relay.
Start the engine. Wait until it stalls, having used up the remaining gasoline.
Operate the starter for a few seconds to release the pressure inside the fuel line.
Turn off the ignition. Restore power supply to the electric fuel pump.

To replace:

After disconnecting one or both terminals, disconnect the battery from the on-board network.
Raise the car with a lift.
Loosen the clamp spring by hand and disconnect the fuel outlet hose.
Disconnect the supply in the same way.
Loosen the clamp. Remove the old one.
Install the new one, orienting the position according to the arrow on the body. Tighten the clamp.
Place the fuel lines onto the fittings and press them against the filter until the latch clicks.
Connect the battery, start the engine. Visually check the tightness of the new fuel line and connections.

Remove the filter from the clamp. Use a 10mm wrench to unscrew the clamp securing bolt. Loosen the spring clamp and remove the fuel line tip.

Replacing the electric fuel pump strainer

To replace, you need to remove the electric fuel pump:

Remove the rear seat in the cabin, open the hatch cover under it.
Disconnect the electrical wiring connector from the electric fuel pump.
Relieve pressure in the power system as described above.
Disconnect the battery.
Disconnect the fuel line.
Unscrew the nuts and remove the pressure plate.
Remove the electric fuel pump module assembly.
Replace the strainer.
Install the pump, secure it with the retaining ring, and tighten the nuts without any extra effort.
Connect fuel lines and power.
Connect the battery, start the engine, and make sure the power system is functioning normally.

Remove the electric fuel pump module assembly from the tank. Disconnect the fuel lines from the pump. Remove the rear seat in the cabin, open the hatch cover underneath it.

Clean fuel filters extend engine life. Replacing them does not require special equipment or special skills. Any owner can provide fuel to a car without dirt and debris.

Why is it needed?

There is a coarse filter that comes first from the gas tank. After all, first the lid where the fuel tank is located is opened, a gun is inserted there, the magic button is pressed and the fuel flows. Yes, it takes a lot of your money along the way, but what can you do? The location of the tank can be on the left or right, but this does not play a special role. Coarse cleaning, which is a mesh that traps large particles of debris.

This is followed by a fine filter. This is exactly what we will talk about. This element is called a fuel filter. With its help, small particles are retained. But even they can penetrate your diesel engine or gasoline injector.

Dust, dirt, debris, rust elements. All this can penetrate the system, causing a clogged pipe, tube, valve, fuel hose, or fuel pump components. Nothing good will come of this if timely replacement is not made.

To understand how to replace the filter, which element to choose and how to choose an analogue for the device you are going to change, you need to have at least a basic understanding of such an important component of the car.

I suggest starting with varieties.

Kinds

Modern fuel filters installed on Ford Focus, Nissan Almera, Hyundai Solaris, Nexia, Mazda, Opel, BMW e60, Renault Logan and Megane, Kia Rio and many others have at least two degrees of purification.

First degree. This is a rough cleansing that allows you to get rid of large contaminants. Not to be confused with a regular mesh in the tank, which is not available everywhere.
Second degree. Fine cleaning. This is the main task that falls on the shoulders of the filter.

And here you probably have the main question - where is the filter device located? I don't know. No, I can answer, but if you tell me specifically what make of your car or what year of manufacture. After all, on the same Chevrolet Niva, different Opel, Toyota, Mazda models, on the Volkswagen Passat B3, as well as on the domestic VAZ 2114, 2112 and 2110, the location may differ.

However, they are always located somewhere between the engine and the gas tank, since the filter's job is to prevent contaminants from entering the engine while the fuel moves from the tank to the engine. What's in the gas tank itself? That's right, a coarse cleaning device. This is an additional filter element so that any unscrupulous gas stations do not spoil your car.

Now let’s talk about the types of filters themselves. What element will be on the car? It depends on the type of engine. There are three of them, as you know. Except for electric motors. Well, there is no need for a fuel filter, as you understand.

Therefore, there are three types of filters:

carburetor;
diesel;
injection.

Location

So you bought yourself a brand new sedan and you think it’s time to change the filter for this engine. Want to choose the best? Well then, take a closer look at Cummins devices. Mann, Hertz. They have proven themselves well, and they cost quite a bit.

You probably know whether your engine is diesel, injection or carburetor

This is important to understand the location of the fine filter, that is, our today's hero

Carburetor. In these engines, the TF (fuel filter) is placed in front of the carburetor itself, and is often in a transparent housing to control contamination. These are the most basic devices, because the carburetor is the least demanding on the quality of fuel.
Injector. It uses nozzles and therefore requires high-quality filtration. And the fuel is supplied under high pressure. Therefore, the filters are enclosed in durable metal housings. The TF has to be regularly maintained, cleaned and monitored for its condition. They are placed mainly under the bottom of the car to make it easier to dismantle and replace.
Diesel. A diesel engine also needs high-quality purified fuel, since the system is quite sensitive. Diesel fuel has a higher moisture content than gasoline. The TF is designed to filter debris and remove accumulated moisture. A separator is provided for this purpose. The location is quite simple - between the engine and the pump that pumps fuel.

Any fuel system must include a TF. They are replaced assembled, that is, there is no point in removing the filter elements themselves (usually special paper), leaving plastic or metal. Be sure to look at the number and article number of the filter that is installed on your machine, and check the operating manual from the factory. This is the only source of truthful information regarding the maintenance of your particular vehicle in this configuration and with this type of engine.

Types of filters: which ones are better

Car enthusiasts who are about to change coarse or fine filters for the first time often ask other VAZ owners which filter element is best to choose. The cost of products from all manufacturers is approximately the same, so you want to get competent advice “first-hand” and avoid incorrect recommendations.

On car owner forums, filters from the Big and Mahle brands are most often mentioned. It should be remembered that no one is insured against manufacturing defects.

The effectiveness of the filter can be assessed by the quality of production and the properties of the paper. The best way is to disassemble the used filter. That is, we remove the used filter, saw it and see how and what it is made of. I've tested so many filters, but I've never seen anything better than the MAHLE KL83. There are no springs inside, the paper filters perfectly (black on the outside and light on the inside), the filter paper is not glued to the body (that is, no glue is used), but is pressed into liquid plastic, which, after cooling, ideally maintains the pitch between the corrugations. Aluminum body. I sawed ZOLEX, SCT and FILTRON. These MAHLE filters don't even hold a candle. The paper frays on them. But this is my purely personal opinion.

However, VAZ owners often support domestic manufacturers by purchasing Salyut filters. The most popular parts are:

article UT-00002606, catalog number 21080–1117010 - with sump;
article 00000011756, catalog number: 21230–1117010;
article: 00000009674, catalog number 21120–1117010.

But in the absence of Salyut oil filters, I installed BIG, since I had previously used them. Apparently, I ran into a fake, because after driving it for 2 thousand km, and when starting it in the morning, the pressure lamp began to go out a couple of seconds after the engine had already started. I found the Salyut, replaced it and everything went away. I still use the gasoline one - it’s BIG GB-320, and I bought Salyut one more time.

The Salyut filter differs from analogues in its acceptable quality and more than attractive price

The process of replacing the fuel filter on a VAZ 2112 is quite simple and requires special skills and knowledge. If you follow the given instructions, everything will work out. It is worth paying special attention to the choice of fuel cell, since the operation of the engine depends on the quality of this part.

conclusions

Sources used:

https://vaz-2110.ru/dvigatel/zamena-toplivnogo-filtra-na-vaz-2110.html
https://m.etlib.ru/blog/941-toplivnyj-filtr-na-vaz-2110-2111-i-2112
https://zapchasti.expert/toplivnyj-filtr/toplivnyj-filtr-vaz-2110.html
https://auto-gl.ru/toplivnye-fil-try-na-vaz-2110-2112-zamena-svoimi-rukami/
https://carfrance.ru/menyaem-toplivnyj-filtr-na-vaz-2112-16-klapanov-svoimi-rukami/