Self-disassembly and repair of the Lada Vesta fuel module

↑ Fuel filter location

A feature of the fuel system of such models as Lada Vesta and Xray, the price of which is exceptionally attractive, is its built-in design. What does it mean? First of all, the coarse and fine fuel filters in these models are built into their electric fuel pumps.

Moreover, these models have different types of electric pumps. If in the case of the Xray model they use a device identical to the one that can be found not only in Lada Largus, Granta or Kalina, but also in Renault Logan and Sandero, then the situation with Vesta is different.

The latest model has a different fuel pump. Its catalog number is 21800113900900. This, however, does not lead to a big difference in technical characteristics.

Engine Lada Vesta

Products from the Dustershop77 range on the topic of the article:

↑ Frequency of its replacement

According to the automaker, the service life of fuel filters corresponds to the service life of the electric pump itself. Therefore, there are no exact recommendations regarding the frequency of replacement of this element from official representatives of the corporation.

Attention! The manufacturer guarantees the operation of only original car parts.

Despite this, car owners occasionally experience clogged filters. The coarse filter, which is a mesh, must be replaced, although this operation is now not so easy - it was easier on Grant. A different situation arose with the fine filter. It is made of paper and cannot be separated from the pump.

As a result, in order to avoid problems and the need for an entire fuel pump, it is recommended to refuel only with high-quality gasoline.

↑ Features of replacement

The electric fuel pump of both Lada models is located in the gas tank of the car. In order to gain access to it, you must first remove the cover from the latter and lift the rear seat.

As a result, the car owner will see a system consisting of:

• electric fuel pump module;
• clamping ring;
• fuel tank;
• wiring harness blocks;
• rear fuel pipe.

Each of these elements plays an important role in the operation of the fuel system. So, the wiring connects the pump to the pressure regulator and the gasoline level indicator. And the gasoline line serves to supply fuel that has already been cleaned by filters to the fuel module.

When replacing, it is necessary to strictly monitor all fragile elements of this system.

Mounting block Lada Vesta in the car interior

The location of this mounting block is quite familiar for most modern cars - near the driver’s left foot. In order to gain access to this unit, you need to unscrew the cover fastening handles, remove the lock on the upper right side of the cover and pull the cover down. The mounting block itself also has a cover that can be removed by disconnecting the upper holders.

↑ Dismantling procedure

The procedure for dismantling the fuel module and fuel pump is the same for both Lada models that we are considering - Vesta and Xray.

You need to start by removing the rear seat in order to free up access to the module. After this, carefully disconnect the wires that connect the pump and the cover. If you replace one of the elements on the cover, you only need to disconnect the cable that is routed to it.

If the goal is to replace the filter, for which you need to get the pump, turn everything off.

Only after all electrical wires have been disconnected should the pump be removed when necessary.

Dismantling process

To change the filter and other elements, you will need a flat-head screwdriver, a small hammer and an appropriate wrench.

Gaining access to the Lada Vesta fuel system is easy. To do this, the cushion, which is part of the rear seat, is reclined on the fret. Noise insulation is also separated.

To open the fuel pump cover of the Lada Vesta, the clamps and latches are disconnected. The plug that is part of the electric fuel pump also turns off.

After this, the car engine starts. As soon as the engine stops idling, the ignition is turned off. The terminals are removed from the vehicle power source.

In order to disconnect the tubes that are located nearby from the fuel pump, press the clamps. If the latches are located under the tip, then a hook made of wire is used for removal.

There are also rings on the gas tank. In order to remove them, they turn in a certain direction. On some models these rings are tightly fixed. That's why motorists use pliers. To minimize the chance of damage to the nearby fuel sensor, the entire module is tilted.

After this, the Lada fuel filter and other elements that are included in the power system are replaced.

↑ How the module is disassembled

As noted above, the procedure for disassembling the electric fuel module of a Lada Vesta or Xray depends on what exactly is planned to be changed. There are both specific features in case of replacing one or another element, and a general procedure, regardless of what exactly needs to be repaired.

In the case when the fuel level indicator sensor is changed, you need to:

• First, remove the wire end from the pressure regulator terminal.
• While simultaneously pressing the latches, remove the wire block from the cover.
• Using a flat-head screwdriver, release the retainer that holds the block.
• After the block is completely disconnected, you can remove the sensor itself. To do this, you need to press two special clamps from the grooves.

A slightly different disassembly procedure is provided if you plan to replace the pressure regulator:

• As in the previous case, you need to start by removing the wire tip.
• After this, helping yourself with a flat screwdriver, you need to remove the special spring-shaped retainer.
• Only after this can the regulator itself be removed from the module cover.

As can be seen from the two cases considered, the most important role when disassembling the elements of the fuel module is played by the correct disconnection of wires and clamps.

Self-disassembly and repair of the Lada Vesta fuel module

The fuel module on the Lada Vesta must be replaced as an assembly, even if only one of the components has failed. This is the official position of AvtoVAZ, although repair of the unit in a specialized service is allowed. However, the experience of car owners has shown that everything is not so simple and some of the components of the entire module can be replaced independently by first disassembling the Lada Vesta fuel module.

Dismantling

To work you will need tools:

1. Hammer;
2. Screwdriver;
3. Head for 10.

First of all, you need to remove the rear sofa cushion, throwing it forward, and then remove the soundproofing sheet from the floor.

Then you need to remove the fuel pump cover - you first need to pry it off from the side and then disengage it.

The next step is to disconnect the plug from the electric fuel pump itself.

Then you need to relieve the pressure directly in the fuel system. To do this, the engine starts, after which it must run at XO until it stalls. When this happens, you need to remove the key from the ignition switch and remove the “-” terminal from the battery.

After releasing the pressure, the tube is disconnected from the fuel pump - to do this, the spring fastenings of the tube tip are compressed, and then you need to pull along the axis of the fitting. In the case where the fastening is located directly under the tip, it is recommended to use a hook.

Next, the ring is removed and turned counterclockwise. Sometimes there are situations when the ring is overtightened and it is difficult to move it. In this case, you need to either arm yourself with pliers and remove the part with them, or move it by placing a stop and hitting it with a hammer.

When this is done, the fuel module is tilted and removed from the fuel pump (the main thing is not to break the fuel level indicator lever). This completes the independent dismantling of the Lada Vesta fuel module.

Replacing the fuel level sensor Lada Vesta

First of all, remove the tip from the output of the fuel pressure regulator.

Next, the plug with the wires is disconnected from the cover (which requires releasing the latches).

Then, using a screwdriver, the block mount is detached.

This makes it possible to disconnect the plug and the fuel pump.

In the end, all that remains is to unscrew a couple of fasteners and remove the fuel level sensor.

Replacing the fuel pressure regulator Lada Vesta

To replace the element, you need to disconnect the tip of the wire from the output of the regulator itself.

Next, the fuel pressure clamp (spring) is dismantled, for which it is pryed off with a screwdriver.

Finally, the fuel pressure regulator is removed from the Lada Vesta fuel module cover.

Assembly is carried out in the reverse order, but the O-ring must be lubricated with oil before installation.

Removing the coarse filter

To remove the Lada Vesta coarse fuel filter, made in the form of a fine mesh, the fuel level sensor is first removed.

First of all, using a screwdriver, disconnect the drain tube from the intake chamber.

Then the guide covers should be removed from the intake chamber, but first you need to mark the guide with the spring.

Next, by disengaging 3 latches, the fuel pump housing, which comes complete with a coarse filter, is removed from the intake chamber.

The filter element itself is held in place by a spring (retaining spring). You need to pry it up and remove the mesh.

Replacing the fuel pump yourself

To replace the Lada Vesta fuel pump with your own hands, you will need a technical hair dryer. If this is not available, you can use regular hot water.

First you need to release the fastener and remove the fuel pump from the holder.

Next, using a hairdryer or water, the tube is heated and then removed.

Assembly is carried out in reverse order.

As you can see, it is quite possible to disassemble the Lada Vesta fuel module yourself and replace some of its components.

↑ How the replacement occurs

The fuel filter on the Lada Vesta is changed according to an algorithm similar to that used when disconnecting and replacing other parts from the fuel module. The main difference is related to both the shape of the coarse fuel filter and its location.

Important! This section describes how to replace the coarse filter, since the fine element cannot be replaced.

In this case, the procedure will look like this:

• You need to take a flat screwdriver and, using it to help yourself, disconnect the drain tube from the intake chamber.
• From the intake chamber you now need to remove all the springs that hold the guides and themselves. In this case, it is important to mark which spring was put on which guide.
• After this, you can begin to release the electric pump fuel module from the intake chamber. It is attached using three clamps, which must be removed.
• The coarse filter is a mesh attached to the pump. It is held in place by one spring.
• In order to remove the filter, you need to pry off the spring with a screwdriver.

Once the old mesh has been removed, you can install a new one and secure it with a locking spring. After this, repeat all the steps in reverse order and return the removed elements to their place.

VAZ engine

1. We bought a fuel filter and hose.
2. We connect the mass to the body and to the filter housing.
3. The filter housing was placed above the fuel pump and covered with double-sided tape.
4. The standard filter in the electric fuel pump module was removed.

It was required: Bosch filter 0986450114 (496 RUR), fuel hoses to the ramp 2170 (405mm), power steering reservoir bracket 2110, bicycle tube.

The filter was installed on a bracket that is attached to the studs of the ABS block over the standard nuts. A strip of rubber from a bicycle inner tube was glued to the inside of the bracket to securely secure the filter to its lower part. Next we connect the fuel pipes:

The filter also acts as a pulsation damper (see information letter No. 25-18).

↑ Where can I buy

Purchasing an electric fuel pump, which is used in the latest Lada models, is not so easy. Its official manufacturer, the Japanese company AISIN, annually supplies this part to the market in insufficient quantities.

The easiest way is to contact official distributors. At the same time, there is no guarantee of the success of such an appeal.

Due to the current situation, more and more motorists are choosing a replacement in the form of similar type fuel pumps. This is about:

• 311111R000;
• 311111G500.

The first of them is used as a standard part of two popular car models - Hyundai Solaris and Kia Rio. And the second is for Kia Picanto, Hyundai Sonata or Elantra. All these models are Korean. This is due to the fact that the fuel system of Korean cars is also of Japanese origin.

Vesta's competitors

At the start of sales, Lada Vesta challenged not just anyone, but the more expensive market leaders in the form of Hyundai Solaris and Kia Rio. However, so far the domestic model is significantly inferior both in terms of performance quality and, naturally, in sales. The most suitable rival for it at the moment will be the Renault Logan, which is already related by the manufacturer, or the also co-platform Nissan Almera. As an alternative, you can consider the “German” Volkswagen Polo and Skoda Rapid, or the Russian Datsun On-Do, if you need something simpler and cheaper.

Related article: Lada Vesta – VIN location and engine number