The fuel filter in VAZ 2109 cars with an injection engine is replaced after every 20 thousand kilometers or if problems arise with the fuel supply.

The process of replacing the filter is not complicated, but it requires a garage with a car pit or at least an overpass, since the element itself is located under the bottom of the car behind the fuel tank near the exhaust pipe. It is almost impossible to get to it without a hole or overpass. From tools and available means, you will need keys for 10, 17, 19, as well as a rag.

It is not difficult to select the filter element itself, since the original spare part has dozens, if not hundreds of analogues. To select, use our table, which shows the manufacturers and catalog numbers of fuel filters suitable for the VAZ 2109.

MANUFACTURER	VENDOR CODE
ORIGINAL
LADA	21081117010
ANALOGUES
AMC FILTER	NF-2360
BOSCH	GT 058
BMW	5490862
BMW	13 32 1 278 272.3
BOMAG	96006361
CASE IH	417917C91
CITROEN	GX 542 9192
CASE IH	680120025
DAF	1500508
FIAT	71736104
DEUTZ-FAHR	8121918050900
FORD	5015544
FRAM	G10230
GENERAL MOTORS	4408101
GENERAL MOTORS	91159804
GMC	93156782
IVECO	J1331043
HAMM	280194
KRAMER	1610306
KIA	920049500
LAND ROVER	STC 4202
LANCIA	9622617880
MAGNETI MARELLI	150020005400
MAN	81125030056
MAZDA	2221 34 70B
OPEL	93156782
PURFLUX	EP202
RENAULT	50 00 031 168
ROVER/AUSTIN	FE4001
RENAULT TRUCKS	5000031168
RICHIER	552482201
SAAB	83 84 75
SMART	0003414V002
SUBARU	642010020
SOFIMA	S 1741 B
TALBOT	13170900
TECNOCAR	B48
VAUXHALL	94475304
UNIFLUX FILTERS	XB245
VOLVO	3713186
VW	251 201 511 D
VW	111261275

Step-by-step instructions for replacing the fuel filter on a VAZ 2109 with photos and videos

We place the car in a pit or on an overpass and immobilize it. Considering that some gasoline may leak out when replacing the filter, it is not recommended to carry out work near an open fire.

1. Find the fuel filter itself.

Replacing the fuel filter VAZ 2109 injector

2. Use a 10mm wrench to loosen the clamp.

3. Using wrenches 17 and 19, grab the nut on the fuel line and the nut on the filter itself. Unscrew it.

4. At this moment, gasoline will begin to flow out from the disconnection point. You can substitute some dishes, or just use a rag. Be careful not to lose the gasket (rubber O-ring).

5. Unscrew the second fitting in the same way.

6. Completely unscrew the clamp and remove the filter.

As you know, VAZ 2109 cars can be equipped with injection and carburetor engines. Depending on this, the procedure for replacing the fuel filter is slightly different.

There are several main reasons why car owners have to periodically or unplannedly change the fuel filter.

You can determine that you purchased a bad or counterfeit fuel filter based on several signs:

• Engine power has dropped;
• The engine pulls poorly;
• RPM drops;
• The engine suddenly stalls after turning on the ignition, etc.

Replacement on the injector

A fuel filter is a device that is responsible for the quality of fuel flowing from the tank to the engine.

The device is located between the engine and the pump and adjusts the composition of the fuel, filtering out debris and impurities. If for one reason or another the filter no longer performs its functions properly, it should be replaced immediately.

To change the device to a VAZ 2109 injector, follow the algorithm.

1. Make sure the engine is completely cool. You cannot work on a hot engine.
2. Drain all gasoline from the system.
3. Check if a fire extinguisher or other fire extinguishing equipment is available.
4. Explore the work area. It should not contain anything that could even theoretically cause a fire.
5. Raise the hood, remove the negative from the battery.
6. Remove the clamp from the fuel inlet and outlet hoses.
7. Disconnect all hoses going to the filter. Be sure to lift them up or even plug them with something at hand. Otherwise, the remaining fuel will spill onto the power unit and the floor.
8. Take the new filter in your hands and check where the marks are located indicating the connection of the inlet and outlet hoses. Just don't confuse them.
9. Before connecting the pipes, check that all the gasoline has actually come out of them.
10. Connect the hoses to the new filter device.
11. Put on new clamps. They are mostly disposable, so it is better to replace them with new ones every time you change the filter.
12. Check the assembly for leaks.
13. Replace the negative terminal of the battery, close the hood and turn on the ignition.
14. Make sure your fuel injection engine is working properly.

Replacement on the carburetor

If you are lucky enough to own a VAZ 2109 with a carburetor engine, the procedure for replacing the fuel filter will be slightly different.

The instructions look like this:

• Loosen the mounting clamp on the engine side;
• Disconnect the hose from the fuel cleaner. Most likely, a small amount of fuel will remain in the pipes, so be careful;
• Loosen the clamp and remove the hose from the tank side;
• Armed with a new fuel purifier, check the direction of the arrow on the device. It must coincide with the direction of fuel movement - towards the pump;
• Tighten the mounting clamps;
• Pump some gasoline into the fuel cleaner as it is dry at this point. This is done by the fuel pump. Press its lever a couple of times, after which the filter will begin to fill with fuel;
• Start the car and check for any signs of fuel leakage.

Safety

Regardless of the type of engine on your VAZ 2109, the procedure for replacing the fuel cleaning device must be carried out in compliance with certain safety measures.

1. Do not smoke under any circumstances while repairing the fuel system. Be patient. We do not recommend going outside to smoke. Your clothes may be oily or saturated with fuel. The slightest ember and problems cannot be avoided.
2. Always keep a fire extinguisher near your car. When changing the fuel cleaner, place it next to you. A useful measure that has saved more than one person and saved more than one car.
3. Avoid contact of fuel with eyes. It is best to work with safety glasses.
4. Work on the fuel system only in well-ventilated areas. If repairs are being carried out in winter, it is better to dress warmly and open the garage doors.
5. Do not change the filter outside during extreme heat. Even high air temperatures and direct rays of the sun can become a source of fire.
6. You can work on the fuel system only when the engine has completely cooled down.

A fire extinguisher is a must have at hand

According to the operating manual, on injection VAZ 2109 the fuel purifier should be changed once every 20 thousand kilometers. In fact, given the operating conditions, this period should be halved. As for the carburetor, it is recommended to change the filter every 10 thousand kilometers. In practice - about 7 thousand kilometers.

Replacing this device is a fairly simple task that even a beginner can handle. The most important point is compliance with safety measures.

The fuel filter in VAZ 2109 cars with an injection engine is replaced after every 20 thousand kilometers or if problems arise with the fuel supply.

The process of replacing the filter is not complicated, but it requires a garage with a car pit or at least an overpass, since the element itself is located under the bottom of the car behind the fuel tank near the exhaust pipe. It is almost impossible to get to it without a hole or overpass. From tools and available means, you will need keys for 10, 17, 19, as well as a rag.

It is not difficult to select the filter element itself, since the original spare part has dozens, if not hundreds of analogues. To select, use our table, which shows the manufacturers and catalog numbers of fuel filters suitable for the VAZ 2109.

Step-by-step instructions for replacing the fuel filter on a VAZ 2109 with photos and videos

We place the car in a pit or on an overpass and immobilize it. Considering that some gasoline may leak out when replacing the filter, it is not recommended to carry out work near an open fire.

1. Find the fuel filter itself.

2. Use a 10mm wrench to loosen the clamp.

3. Using wrenches 17 and 19, grab the nut on the fuel line and the nut on the filter itself. Unscrew it.

4. At this moment, gasoline will begin to flow out from the disconnection point. You can substitute some dishes, or just use a rag. Be careful not to lose the gasket (rubber O-ring).

5. Unscrew the second fitting in the same way.

6. Completely unscrew the clamp and remove the filter.

7. Install the new filter in reverse order. Don't forget about the O-ring.

8. When installing, strictly adhere to the direction of fuel movement. Don't get confused, there is a special indicating arrow on the filter housing.

9. After installing the filter, start the engine and check for fuel leaks.

Also watch a video on how to independently replace the fuel filter on a VAZ 2109:

From a practical point of view, the fuel filter is a barrier that helps maintain the required composition of gasoline. All motorists, without exception, know how the composition of gasoline affects the technical and functional capabilities of the car. In a VAZ 2109, replacing a fuel filter is a completely ordinary task, however, to successfully resolve it, you need not only appropriate resource capabilities, but skills combined with knowledge. Replacing the fuel filter on a VAZ 2109 can be easily done on your own.

The most common underlying causes of premature fuel filter failure

We present them in the form of a list:

• A well-known fact is that the service life of a particular component of a car depends on the degree of its quality. Because, frankly speaking, today there is no commission for the quality standard of technical products that would not allow for sale those technical products whose requirements do not correspond to those specified in the documentation.

Note. During the Soviet Union, quality control was taken over by the state. Today, formally, this role belongs to the national dealer, who is interested only in obtaining financial profit.

• Many companies from China invest huge amounts of money in marketing, thanks to this they manage to find many dealers and sign long-term contracts with them.

Note. For example, the dealer himself (the owner of an auto parts store) in most cases is reluctant to understand his products from a technical point of view. Manufacturers take advantage of this, convincing them of the high quality of their parts, promising the same technical capabilities as European manufacturers, only at a significantly lower cost.

All these processes together lead to the emergence of countless handicrafts on the national market. The main reasons for premature replacement of the fuel filter:

• the presence of a huge number of counterfeit fuel filters in auto parts stores;
• overloading the filter with gasoline (extremely rare);
• poor quality or completely incorrect installation of the fuel filter;
• low quality of the fuel itself.

Objective reasons that allow us to establish the fact of purchasing a counterfeit fuel filter:

• poor traction;
• insufficient motor power;
• reduction in speed;
• sudden engine stall when turning on the ignition, etc.

Notes In order to reduce the risk of purchasing a counterfeit fuel filter, you need to buy it only from reliable dealers who provide a warranty. If the car owner is a newbie, then you need to take the advice of friends who have repeatedly purchased any car components.

Practical instructions and basic principles for replacing the fuel filter on a VAZ

So, the fuel filter is a device that is responsible for the quality of gasoline. As everyone knows, gasoline first enters the fuel tank, from where it is pumped out into the engine by a VAZ electric gasoline pump. The fuel filter itself is located at the median distance between the electric pump and the car engine. Its main task is to correct the composition of gasoline. If it fails due to a number of the above circumstances, it is necessary to immediately replace the VAZ 2109 fuel filter.

Note. It is more expensive to use low-quality gasoline, since forced premature replacement of the VAZ 21093 injector fuel filter is a very costly procedure.

Preliminary preparation of the car for replacing the fuel filter:

• The first thing you need to do is make sure that the engine is completely cool;
• drain all gasoline from the vehicle’s fuel system;
• make sure that there is a fire extinguisher nearby;
• inspect the nearby work area so that suddenly there are no elements nearby that could hypothetically create a spark.

• Having opened the hood, you first need to remove the negative terminal from the battery for safety purposes, so that a spark cannot form even accidentally;
• then, you need to remove the clamps from the outlet and inlet fuel hoses;
• disconnect all possible hoses from the old fuel filter (after disconnecting, the hose must be immediately directed upwards so that gasoline does not spill out);
• carefully examine the new fuel filter and find special symbols on it in the form of arrows, which actually indicate the correct connection of the inlet and outlet hoses;
• Before connecting the hoses to the new filter, you should first make sure that there is no gasoline in them;
• after which, it will be necessary to put on new clamps;
• be sure to check the absolute tightness;
• re-attach the terminal to the battery and now safely close the car trunk;
• Turn on the ignition and check that the engine is functioning properly.

From a practical point of view, replacing the fuel filter does not cause any difficulties and even a motorist with little driving experience can cope with it, however, in general, the procedure itself requires a high degree of vigilance. If you do not follow at least one of the safety rules, the consequences can be extremely negative.

Note. General safety rules have been developed based on practical situations, so compliance with them must be taken seriously, especially since they are easy to implement and do not require any significant effort.

Reassembling the fuel filter must be performed in exactly the reverse order of disassembly, otherwise the car engine may simply not start or fail prematurely. Replacing the fuel filter itself does not require any special specialized knowledge or skills; the main thing is to follow the general instructions, since a high-quality installation will allow the engine to serve for many years without any complaints. All of the above provisions must be visualized using photos and video materials. From a practical point of view, the instructions are easy to follow; the main thing is not to forget about safety measures. Replacing the fuel filter with your own hands is within the power of every motorist. Plus, the price will be significantly lower if the replacement is made independently, and not at a car service center. You should also always strive to use only high-quality fuel.

The fuel filter is an element of the power supply system (fuel supply system) of the injection engine of VAZ 2108, 2109, 21099 cars.

Purpose of the fuel filter

The fuel filter in the power supply system of the injection engine of VAZ 2108, 2109, 21099 cars is designed to filter fuel (remove mechanical impurities) entering the main fuel line from the gas tank.

Location by car

The fuel filter on VAZ 2108, 2109, 21099 cars is located under the bottom of the body, near the gas tank. It is built into the fuel supply line between the electric fuel pump in the gas tank and the fuel rail on the car engine.

Fuel filter device

The fuel filter consists of a metal housing with threaded fittings on both sides. Inside the filter there is a paper filter element that traps various foreign particles found in gasoline. From the fuel pump, fuel flows through a rubber hose to the filter inlet fitting.

Operating principle of the fuel filter

The electric fuel pump pumps gasoline from the fuel tank through a rubber hose to the inlet fitting of the fuel filter. In the filter housing, the filter element traps foreign particles present in gasoline. Next, the fuel flows through the filter outlet fitting into the metal tube of the main fuel line and then along it into the fuel rail with injectors on the engine. The direction of fuel flow is indicated by an arrow on the fuel filter housing.

Fuel filter malfunctions

— The main malfunction of the fuel filter is a decrease in its throughput due to clogging with foreign impurities present in gasoline. As a result, creating the necessary fuel pressure becomes problematic. There are jerks and dips in engine operation, unstable idling, the engine may stall both at idle and while driving, etc.

— In other cases, the fuel filter may, on the contrary, not filter out mechanical impurities in gasoline, but pass them into the fuel rail to the injectors. The occurrence of such a situation is possible due to its poor manufacturing or deformation from impact.

The frequency of replacing the fuel filter is 30,000 km. In a number of cases (constant use of low-quality fuel, a car with high mileage or a fuel tank that has not been cleaned for a long time, etc.)

Applicability of fuel filters in the power supply systems of the injection engine of VAZ 2108, 2109, 21099 cars

In the power supply system of the injection engine of VAZ 2108, 2109, 21099 cars, fuel filters 2112-1107010-01 (02, 03, 04, 05) of domestic production or their imported analogues are used (BOSH F0124, MANN WK612/5, Champion L240, ACDelco GF613 and etc.)

From a practical point of view, the fuel filter is a barrier that helps maintain the required composition of gasoline. All motorists, without exception, know how the composition of gasoline affects the technical and functional capabilities of the car.
In a VAZ 2109, replacing a fuel filter is a completely ordinary task, however, to successfully resolve it, you need not only appropriate resource capabilities, but skills combined with knowledge. Replacing the fuel filter on a VAZ 2109 can be easily done on your own.

The most common underlying causes of premature fuel filter failure

We present them in the form of a list:

• A well-known fact is that the service life of a particular component of a car depends on the degree of its quality. Because, frankly speaking, today there is no commission for the quality standard of technical products that would not allow for sale those technical products whose requirements do not correspond to those specified in the documentation.

Note.
During the Soviet Union, quality control was taken over by the state. Today, formally, this role belongs to the national dealer, who is interested only in obtaining financial profit.

• Many companies from China invest huge amounts of money in marketing, thanks to this they manage to find many dealers and sign long-term contracts with them.

Note.
For example, the dealer himself (the owner of an auto parts store) in most cases is reluctant to understand his products from a technical point of view. Manufacturers take advantage of this, convincing them of the high quality of their parts, promising the same technical capabilities as European manufacturers, only at a significantly lower cost.

All these processes together lead to the emergence of countless handicrafts on the national market.
The main reasons for premature replacement of the fuel filter:

• the presence of a huge number of counterfeit fuel filters in auto parts stores;
• overloading the filter with gasoline (extremely rare);
• poor-quality or completely incorrect installation;
• low quality of the fuel itself.

Objective reasons that allow us to establish the fact of purchasing a counterfeit fuel filter:

• poor traction;
• insufficient motor power;
• reduction in speed;
• sudden engine stall when turning on the ignition, etc.

Notes
In order to reduce the risk of purchasing a counterfeit fuel filter, you need to buy it only from reliable dealers who provide a warranty. If the car owner is a newbie, then you need to take the advice of friends who have repeatedly purchased any car components.

Practical instructions and basic principles for replacing the fuel filter on a VAZ

So, the fuel filter is a device that is responsible for the quality of gasoline. As everyone knows, gasoline first enters the fuel tank, from where it is pumped out to the engine.
The fuel filter itself is located at the median distance between the electric pump and the car engine. Its main task is to correct the composition of gasoline.
If it fails due to a number of the above circumstances, it is necessary to immediately replace the VAZ 2109 fuel filter.

Note. It is more expensive to use low-quality gasoline, since forced premature replacement of the VAZ 21093 injector fuel filter is a very costly procedure.

Preliminary preparation of the car for replacing the fuel filter:

• The first thing you need to do is make sure that the engine is completely cool;
• drain all gasoline from the vehicle’s fuel system;
• make sure that there is a fire extinguisher nearby;
• inspect the nearby work area so that suddenly there are no elements nearby that could hypothetically create a spark.

Fuel filter replacement algorithm:

• Having opened the hood, you first need to remove the negative terminal from the battery for safety purposes, so that a spark cannot form even accidentally;
• then, you need to remove the clamps from the outlet and inlet fuel hoses;
• disconnect all possible hoses from the old fuel filter (after disconnecting, the hose must be immediately directed upwards so that gasoline does not spill out);
• carefully examine the new fuel filter and find special symbols on it in the form of arrows, which actually indicate the correct connection of the inlet and outlet hoses;
• Before connecting the hoses to the new filter, you should first make sure that there is no gasoline in them;
• after which, it will be necessary to put on new clamps;
• be sure to check the absolute tightness;
• re-attach the terminal to the battery and now safely close the car trunk;
• Turn on the ignition and check that the engine is functioning properly.

From a practical point of view, it does not cause any difficulties and even a motorist with little driving experience can cope with it, however, in general, the procedure itself requires a high degree of vigilance. If you do not follow at least one of the safety rules, the consequences can be extremely negative.

Note. General safety rules have been developed based on practical situations, so compliance with them must be taken seriously, especially since they are easy to implement and do not require any significant effort.

Reassembling the fuel filter must be performed in exactly the reverse order of disassembly, otherwise the car engine may simply not start or fail prematurely. Replacing the fuel filter itself does not require any special specialized knowledge or skills; the main thing is to follow the general instructions, since a high-quality installation will allow the engine to serve for many years without any complaints.
All of the above provisions must be visualized using photos and video materials. From a practical point of view, the instructions are easy to follow; the main thing is not to forget about safety measures.
Replacing the fuel filter with your own hands is within the power of every motorist. Plus, the price will be significantly lower if the replacement is made independently, and not at a car service center.
You should also always strive to use only high-quality fuel.

For carburetor engines
(description of the procedure for replacing the air filter)

Replacing the air filter is included in the routine maintenance procedures for VAZ 2108, 2109, 21099 cars, as well as all other cars. If you do not go through these procedures, you should monitor the condition of the filter yourself, because... when it is heavily polluted, engine power decreases, gasoline consumption increases and the emission of harmful combustion products into the atmosphere increases.

It is recommended to check the condition of the filter once every 10-15 thousand kilometers; if the car is operated in highly dusty conditions, then once every 5-10 thousand kilometers.

The filter replacement procedure is very simple. First of all, you need to remove the filter box cover by unscrewing the nut securing the filter cover and opening the three clamps around the perimeter of the box.

After this, remove the old filter and wipe the inside of the filter box housing with a dry cloth to remove any remaining dirt and dust.

Then you should install a new filter, close the box lid, tighten the nut and place the clamps around the perimeter of the filter box. New filter installed!

You can see how to replace the air filter in the video below:

For injection (injection) engines

Replacing the air filter on models of the Samara family with injection (injection) engine modifications is regulated and must be done at least every 20 thousand km.

Replacing the filter element is quite simple (the description is suitable for models VAZ 2108, 2109, 21099 and VAZ 2113, 2114, 2115). First of all, you need to remove the mass air flow sensor:

After unscrewing the fastening screws, lift the cover up. The filter itself will be located in its grooves:

Pay attention to how it is installed. If suddenly for some reason you did not pay attention to this, then on the bottom of the housing there is an indicator in which direction the filter element should be installed. We install a new filter in place of the old one...

...and screw the lid back on. Install the mass air flow sensor. It is necessary to insert the sensor into the seat until it clicks.

We start the engine and check the operation. If its operation becomes unstable after installing a new filter, then the filter may be installed incorrectly. It is necessary to perform all the above operations again, only this time install the filter in the desired position.