Replacing the fuel filter (for use on VAZ 2110 / 2111 / 2112 models with a 1.5 l engine)

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Article number and cost of the branded filter VAZ 2115 and its analogues

On most VAZ 2115 injector cars there is a fuel filter 21120-1117010. Its price varies from 200 to 300 rubles. Consumable analogues can be found in the table below.

Table - Optimal analogues of a fuel filter with nuts.

On parts of injection VAZ 2115 cars you can find a fuel filter 21230-1117010. Its cost ranges from 200 to 300 rubles. You can see good analogues for the original consumables in the table below.

Table - Analogues of a fine fuel filter with clips.

The injection VAZ 2115 has a coarse filter. It is represented mainly by mesh with article number 2112-1139200. Its cost is 30-80 rubles. Good analogues of the original filter mesh are located below.

Table - Analogs of fuel filter mesh 2112-1139200.

On some VAZ 2115 cars you can find a mesh with catalog number 1118-1139200. Its price ranges from 50 to 100 rubles. The best analogues of the branded coarse filter are presented below.

Table - Alternatives to fuel filter mesh 1118-1139200.

The first VAZ 2115 cars had a carburetor. On such machines there is a fuel filter 21080-1117010. The price for it ranges from 50 to 120 rubles. The consumable has good analogs, the best of which are in the table below.

Table - Alternatives to the original fuel filter for a carburetor VAZ 2115.

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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.

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Fuel purification in VAZ 2110–2112

Different filters are used in the fuel supply systems of carburetor and injection engines.

Gasoline for a carburetor engine passes through a fine filter installed in front of the fuel pump.

Gasoline for a carburetor engine passes through a fine filter installed in front of the fuel pump

This non-separable disposable unit is assembled in a transparent plastic case, thanks to which the condition of the paper filter element can be assessed visually. The filter is the same as in all carburetor cars. In addition to this, mesh types of cleaning the fuel intake, fuel pump and carburetor are guarding the purity of gasoline.

The filter installed in the power supply system of injection engines is also made of paper. But due to the fact that it works under high pressure, it is assembled in a non-separable metal case.

The fine fuel filter installed in the power supply system of injection engines is also made of paper. But due to the fact that it works under high pressure, it is assembled in a non-separable metal case

In addition to it, the system has a strainer installed in the fuel tank along with an electric fuel pump.

The strainer is installed in the fuel tank along with the electric fuel pump

The tenth VAZ model was supposed to be a sedan based on Samara, which later became the “ninety-ninth”. In fact, the index 2110 received a second-generation front-wheel drive car - a car without a proper name, which everyone knows as a “ten”.

Oleg Polazhinets

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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.

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Symptoms of a clogged fuel filter

A clogged fuel filter affects the operation of an injection engine slightly differently than a carburetor engine. Firstly, the injection engine itself requires more accurate supply and dosage. Secondly, the design of the fuel rail, and especially the injectors, can simply become clogged. And the impact of moisture particles and their corrosive consequences can cause more harm than in carburetor engines.

The main signs of a clogged fuel filter:

• deterioration of vehicle dynamics;
• depending on the degree of clogging, instability of operation at high or low speeds; difficult engine starting;
• signs of a lean mixture - popping noises in the air filter, dips during a sharp increase in speed;
• in some cases, deterioration or failure of the fuel pump.

But in any case, if the filter has already traveled more than 20 thousand, it is recommended to change it without waiting for the inevitable consequences.

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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.

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

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.

Oleg Polazhinets

Wheels

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

1. Disconnect the battery.
2. Raise the car with a lift.
3. Place the bucket. Carefully unscrew the outlet fitting using 19 and 17 mm wrenches. Collect gasoline leaking from the fuel line into a container.
4. Unscrew the inlet fitting.
5. Loosen the clamp bolt and remove the filter.
6. 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.
7. Tighten the clamp.
8. 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.
9. Connect the battery. Start the engine. Make sure it is sealed.

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.

Oleg Polazhinets

Wheels

Replacing the filter for engines 21114 and 21124

Before depressurizing the system, relieve fuel pressure:

1. 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.
2. Start the engine. Wait until it stalls, having used up the remaining gasoline.
3. Operate the starter for a few seconds to release the pressure inside the fuel line.
4. Turn off the ignition. Restore power supply to the electric fuel pump.

To replace:

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

Photo gallery: replacing the fine filter for engines 21114 and 21124

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.

Video: replacing the VAZ 2110 fuel filter

Replacing the electric fuel pump strainer

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

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

Photo gallery: Replacing the coarse filter

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.

Tools

To do the job correctly and competently, you will need a certain set of tools, which includes:

• New filter that matches your car's powertrain;
• O-rings required for the fuel line fitting;
• Open-end wrenches. Moreover, certain sizes - 19, 17 and 10;
• Two buckets or basins. They are needed to collect gasoline and drain water.

Safety regulations

Don't want a simple filter replacement to end in tragic consequences? Then carefully read the basic safety rules.

1. The room should be well ventilated, but it is better to do such work outside.
2. Disconnect the battery. It is not necessary to completely remove the battery; simply remove the terminals from the battery.
3. Do not work near fire sources or highly heated surfaces.
4. Do not smoke under any circumstances during the entire replacement process.
5. Always have fire extinguishing agent on hand. Many car owners keep a special fire extinguisher, although a simple container of water or a bucket of sand will do.
6. Protect your eyes and skin as gasoline may come into contact with you during operation.
7. As you work, you will probably end up with a lot of rags that you used to wipe up gasoline spills. Do not put them in a common pile, do not throw them towards the tools. Allocate a separate place for such rags.

Features of the power supply system for engines 2112 and 2111

Elements of the power supply system for engines 2112 and 2111 (1.5i):

1 — nozzles; 2 - fuel rail; 3 — diagnostic fitting; 4 - adsorber; 5 - check valve; 6 — throttle assembly; 7 - gravity valve; 8 - safety valve; 9 - separator; 10 — fuel tank filler pipe; 11 — fuel filter; 12 — fuel supply line; 13 — fuel line hose connecting the outlet (discharge) pipe of the fuel module with the fuel filter; 14 — fuel module; 15 — fuel tank; 16 — fuel drain line; 17 - fuel pressure regulator. Note. The fuel supply line on the 2111 engine is connected to the fuel rail at the end (see below).

Location of elements of the engine power supply system 2112 (1.5i 16V) in the engine compartment:
1
-
receiver; 2 — throttle assembly; 3 — air supply hose to the throttle valve; 4 — air filter; 5 — fuel pressure regulator; 6 — throttle valve drive cable; 7 — fuel rail; 8 — diagnostic fitting; 9 — adsorber check valve; 10 - adsorber

Location of elements of the engine power supply system 2111 (1.5i 8V) in the engine compartment:

1
—
adsorber check valve;
2 — diagnostic fitting; 3 - receiver; 4 - throttle assembly; 5 — fuel pressure regulator; 6 — air supply hose to the throttle valve; 7 — air intake; 8 — air filter; 9 — fuel rail; 10 — throttle valve drive cable; 11 — adsorber Fuel pump fuel module Fuel pressure regulator

Fuel rail of engine 2112 (1.5i 16V) assembled
with
injectors:
1
-
fuel supply tube to the fuel rail; 2 — fuel pipe for draining fuel into the tank; 3, 4, 5 and 6 - nozzles; 7 — diagnostic fitting (to check the fuel pressure, closed with a threaded cap); 8 — fuel rail; 9 - fuel pressure regulator

Fuel rail for engine 2111 (1.5i 8V) assembly

with
nozzles:
1 — diagnostic fitting; 2 - fuel rail; 3 — fuel supply tube to the fuel rail; 4 — fuel pressure regulator; 5 — tube for draining (draining) fuel into the tank; 6, 7, 8 and 9 injectors

Fuel

engine module
2112 and 2111 (1.5i):
1 - fuel level indicator sensor; 2 — connecting block; 3 — inlet pipe; 4 - outlet (discharge) pipe; 5 — module cover; 6 — module cover guide; 7 - electric fuel pump in a plastic casing; 8 - intake chamber

Article number and approximate cost of a branded VAZ 2112 filter

The VAZ 2112 mainly uses the original fuel filter 21120-1117010. Its price ranges from 200 to 300 rubles. In addition to the branded product, there are its analogues on sale. The table below provides a list of the best alternatives to a branded filter.

Table - Optimal analogues of a fuel filter with nuts

On VAZ 2112 cars with a 16-valve engine, an original filter with article number 21230-1117010 is used. The consumable costs about 200-300 rubles. It differs from 21120-1117010 in that it is attached to the fuel line. Instead of nut fixation, pipes with clips are used. The consumable has a lot of analogues. The best of them are presented in the table below.

Table - Analogs of fine fuel filter with clips

In addition to the fine filter, the VAZ 2112 has a mesh that catches large debris. Most cars use a filter with catalog number 2112-1139200. The cost of consumables ranges from 30 to 80 rubles. It is also possible to buy an analogue. The best alternatives are presented below.

Table - Fuel filter screens for a VAZ 2112 car with a 1.5 liter engine

On cars with a 1.6 liter engine there are filter meshes with catalog number 1118-1139200. Their price varies from 50 to 100 rubles. You can see the best analogues of the original consumables in the table below.

Table - Fuel filter screens for a VAZ 2112 car with a 1.6-liter engine