Replacing the expansion tank on a VAZ 2110 with your own hands

The water cooling system of VAZ cars of the “tenth” family necessarily includes a plastic expansion tank. When the volume of antifreeze increases as a result of heating, its excess flows into this container. The second function of the element is to remove steam and excess pressure through a plug with a valve. The problem is that on “tens” tanks often fail and car owners have to change them. The replacement procedure is not complicated and can be easily done with your own hands.

Location of expansion tank

A plastic reservoir for excess coolant is installed by the manufacturer in different places depending on the model of the “tenth” family:

• in cars of the VAZ 2110-12 series, the reservoir is located on the left side (in the direction of travel) between the pillar glass and the wall of the interior partition;

  The expansion tank on VAZ 2110-12 models is installed in a narrow niche on the driver’s side

• in VAZ 2114-15 cars, the container is also located on the driver’s side, but is placed in front of the pillar glass.
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  In cars of the 2114-2115 series, the tank is located in front of the pillar

The expansion tank is attached to the body elements with a clamp in the form of a flat rubber belt with a metal hook that hooks onto a protrusion on the side member. There are 3 hoses connected to the tank:

1. A large diameter pipe leading from the thermostat is connected to the bottom.
2. The upper tube of small diameter goes through the partition to the radiator of the cabin heater.
3. The middle small tube connects the tank to the upper fitting of the main cooling radiator.

   The reservoir compensates for the expansion of coolant and steam from three elements of the system - the cabin heater, the radiator and the main line near the thermostat

On some modifications there is a reservoir with two fittings and connecting pipes - the large one comes from the thermostat, and the small one from the main radiator; there is no connection to the stove.

Each hose performs a separate function. The thick pipe serves to expand the coolant and fill the system while pouring antifreeze through the neck of the tank. Two thin tubes are designed to drain the steam-water mixture from the stove and the main radiator into the tank when heated to the maximum permissible antifreeze temperature of 95 ° C.

The expansion tank (item 1) is located at the highest point of the cooling system at the same level as the throttle valve

Causes of failure of VAZ 2110-2115 tanks

The service life of this element is not limited by regulations. This means that the container should be changed as needed, and this occurs quite often. The most common reason for replacement is damage to the integrity of the plastic case during operation. The tank simply bursts and here's why:

1. Clogged or damaged lid valve. The steam coming from the radiators increases the pressure inside the tank because it cannot escape through the plug. As a result, the wall of the container is destroyed.

   Damage to the plastic wall occurs due to excess pressure in the cooling system

2. In VAZ 2110-12 cars, the side walls of the vessel are closely adjacent to the body elements - the glass and the partition. As the antifreeze temperature and pressure in the system increase, the plastic has nowhere to swell, causing the body to burst along the seam at the end (usually in the lower corner).
3. In the event of a breakdown of the gasket between the cylinder head and the engine block, the cooling system is subjected to a series of water hammers created by the movement of the pistons. The plastic case also often bursts from such an impact.
4. The reason may be the expansion tank itself, made from low-quality raw materials or in violation of casting technology src=»https://vazweb.ru/wp-content/uploads/2017/08/treshchina-stenki-bachka-vaz-2110-12 -700×360.jpg" class="aligncenter" width="700″ height="360″[/img]
   On low-quality products, cracks may appear 3-6 months after the start of use

To avoid destruction of the expansion tank, it is recommended to check the functionality of the plug valve before each long trip. Practice shows that problems with the tank most often arise on the road, when it is hot outside, that is, in the summer. A sign of a malfunction is a sharp increase in coolant temperature and a puddle under the engine compartment on the driver’s side.

Experienced drivers advise replacing the standard tank cap with the cap from previous VAZ 2109-099 models. They are much more reliable in operation and fit the thread. Just keep one thing in mind: in some car configurations the plug is equipped with an antifreeze level sensor. After such a replacement, you will not be able to control it, although this will not affect the performance of the cooling circuit.

Coolant boiling

If antifreeze (antifreeze) boils, make sure:

1. Does the radiator fan work and when does it turn on? The sensor may be faulty;
2. Is the thermostat working? The coolant constantly moves in a small circle, thereby not cooling;
3. Is the pump working?
4. Is the cooling system, including the radiator, clogged?
5. Is the system airy?
6. Is the valve on the lid working properly? Low pressure in the system can cause premature boiling of the antifreeze.

As for airiness, for example, in VAZ 2110, 2111, 2112, from the experience of their operation, the system practically does not become airborne due to its special design.

In other cars, when replacing the coolant, an air lock may end up in the stove and, over time, make itself felt by overheating the engine and burning out the cylinder head gasket

It is important to monitor the instrument readings

Recommendations for selection

For VAZ 2110-12 models, you can find 2 types of expansion tanks on sale:

• old model with two necks: the coolant level sensor is screwed into the first, and the second is closed with a plug with a release valve;

  On old-style products, a second neck was made for installing an antifreeze level sensor

• a new model with one neck (without sensor) and a body convex on the sides.

  The new sample container does not have a level sensor

If your car has a sensor in an expansion tank, then you need to select an old-style product. Accordingly, versions without a sensor will require a new reservoir design.

For VAZ 2114-15 models, tanks of the same shape are offered with 3 fittings: two of them are located at one end, and the third is located at the opposite end. Products for the VAZ 2110 and 2114 are not interchangeable with each other, although if you really want to, attaching a part from another model is quite possible. Another thing is that there is no need for this - both varieties are available for free sale and practically do not differ in price.

The reservoir for models 2114-15 has a wider shape and a versatile arrangement of fittings

When purchasing an expansion tank for any series of cars of the “tenth” family, pay attention to the following points:

• the plastic of a quality product should be light and half transparent;
• cracks in the corners or near the fittings are unacceptable;
• the plastic should not be “oaky” or have dark impurities visible to the naked eye;
• look on the body for an imprint of the manufacturer's trademark and catalog number (21083–1311014 for VAZ 2114).

For all modifications “ten”, “fourteen” and “fifteen” a small tuning is available - installation of an expansion tank from the cooling system of a Lada Priora car. Why and how this is implemented will be discussed below.

The reservoir of the Priora cooling system has a rectangular shape and 3 fittings on the front wall

Video: how to distinguish an original spare part

First of all

Try replacing the cover with a new one or take a known working one for the duration of the test.

Notice how much the tank swells. If it is not significant and it is clear that it is not due to excess pressure, and you are the owner of a VAZ 2110-12, then you should not worry too much, since for such cars this is considered the norm

The fact is that new tanks for such cars have a finless design and are made of plastic, which does not hold its shape very well, so over time they begin to swell. Expansion tanks from Lanos, Priora, Nexia have proven themselves well; they are often installed instead of VAZ ones.

If the tank swells strongly and ruptures, even after replacing it along with the lid, then pay attention to the following points:

1. Does the coolant boil?
2. What color is the oil in the engine crankcase?
3. Are there gases from the combustion chamber in the tank?
4. What is the pressure in the cooling system;
5. The quality of the tank itself.

Procedure for replacing the container

It is advisable to perform the disassembly procedure on a cooled engine, since hot antifreeze will inevitably get on your hands and cause burns. Special equipment and no special conditions are required, including an inspection ditch. For work, choose a lighted, flat area or a warm room if the replacement is being done in the middle of winter.

From tools and additional materials you need to prepare:

• Phillips screwdriver;
• pliers;
• set of open-end wrenches;
• manual or foot pump with a pointed nozzle on an air hose;
• antifreeze basin;
• rags.

  To work, you will need a simple set of tools available in every garage.

It is also recommended to stock up on new clamps to match the size of the pipes; it is better not to use old ones.

Instructions for disassembling and installing a new part

To change the container, you need to empty it of antifreeze. There is no need to completely empty the system; no more than 2 liters of liquid should be drained. This can be done in two ways:

1. Unscrew the protective boot under the radiator, place a basin and unscrew the lower plug of the main radiator a few turns. When the antifreeze leaves the reservoir, screw the cap back on.

   The plug with a thumb for manual unscrewing is located at the bottom of the radiator

2. Disconnect the upper tube coming from the stove from the reservoir and put it on the fitting of the new element. Attach the pump nozzle to the free pipe of the old tank and, by pumping, squeeze out the coolant, which will flow into the new tank.

In the first case, you need to remove the expansion vessel plug in advance, and in the second, it must remain closed.

Then work in the following order:

1. Remove the 2 small tubes from the container by loosening the clamps with a screwdriver. Take them aside.

   The hoses are easily removed from the fittings after loosening the clamps

2. Repeat the operation with the large lower hose, but after removing it, secure it higher or break it and tie the end with wire.
3. Unfasten the rubber retainer and remove the old tank from its socket.

   To remove the element, simply unfasten the rubber retainer

4. Insert a new one in its place, secure it with a clamp and connect all the pipes in the reverse order, using new clamps.

   The new part is inserted into the niche in place of the old one and secured with a clamp

On VAZ 2110 and 2114 cars, disassembly and installation of a new part are carried out in the same way. The only difference is the location of the tank.

To add antifreeze to a level between the Min and Max marks on the tank wall without creating an air lock in the system, disconnect the tube from the throttle valve heating unit (this is the highest point of the cooling circuit). Pour liquid into the tank until it runs out of the removed tube, then put it on the fitting and secure it with a clamp. Add antifreeze to the required level.

Before pouring antifreeze into the system, you need to remove one of the pipes connected to the throttle valve block

During the replacement process, you should pay attention to the condition of the hoses leading to the container. If their ends have become soggy and increased in diameter, and cracks have formed on the walls, it is better to change such pipes.

Installation of an expansion tank from Priora

The capacity of the engine cooling system of the VAZ 2170 is distinguished by thicker walls, thanks to which Priora has forever gotten rid of the “childhood disease” of a bursting tank inherent in the VAZ 2110. There is another reason: in the standard tank of the “tens”, a stream of antifreeze from the radiator pipe hits from the inside directly into the lid , which is why the latter leaks. On the “Prior” part, the fittings are at an angle to the neck, so liquid does not get there.

The tank fittings from the VAZ 2170 are directed away from the filler neck

Since the part from the VAZ 2170 is wider than the standard element, its installation is associated with some difficulties: the tank will not simply fit into the narrow space between the glass and the partition. What should be done:

1. Remove the windshield wipers by unscrewing the mounting nuts.
2. Remove the upper body panel.
3. Unscrew the partition trim from the engine compartment side.
4. Try on the new tank by inserting it into the opening. Then cut the sound insulation to size and assemble the assembly in reverse order.

   In order for the wide element from Priora to fit into a narrow opening, you will have to remove the partition trim

Expansion tanks for Priora come in two types - with 2 and 3 fittings (the first are installed on a car with air conditioning). You need a second type of part to connect three hoses.

Installation of pipes and filling of coolant is carried out using the technology described in the previous section. As for modifications of the VAZ 2114-15, where the expansion vessel is located in a wide niche in front of the pillar glass, such a replacement will not cause any difficulties.

The work of replacing the expansion tank on machines of the “tenth” family should be done independently if you want to save personal time and money. A trip to a car service center will take longer and cost more. At the end of the procedure, do not forget to check the operation of the cooling system by warming up the engine to operating temperature and turning on the electric fan.

Internet auto club IZH-2126

Required parts and materials:

• New type expansion tank VAZ-2110;
• Branch pipe of the expansion tank VAZ-2110;
• Vapor removal tube for expansion tank VAZ-2110 2 pcs.
• VAZ-2110 expansion tank belt;

Additionally, who wants to install an alternative sensor on. fan:Original numbers: AUDI / VOLKSWAGEN 811 959 481AUDI / VOLKSWAGEN 893 959 481

Installation.

First, remove the old (original) tank and mark on the bracket the places where the screws for the bracket will be screwed in. We make markings at the intersection of the middle of the bracket (the intersection of vertical and horizontal lines).

Rice. 1. Bracket for the tank and places where the screws are screwed in.

Next you need to drain the coolant, because... Next we need to remove the upper (supply) radiator hose to the cylinder head pipe.

Rice. 2. Upper (supply) radiator hose, cylinder head pipe.

After the liquid has been drained, you need to make a short hose of the same cross-section with a bend (you can buy a similar hose and cut it off). Rice. 3. A piece of rubber pipe.

Next, we will need a 3/4 3/4 1/2 tee, as well as a suitable fitting with a diameter of “10” mm.

Rice. 4. Tee 3/4 3/4 1/2 and fitting with a diameter of “10” mm.

We insert the tee into the hoses and crimp it with suitable clamps, as shown in Fig. 3.

Now we make a bracket for the expansion tank. To do this, you can take metal plates (thin) with a width of 2.5 - 3 cm and 10 - 15 cm, the length can be taken with a margin of 30 - 40 cm, I cut them with metal scissors by eye. We take a pre-purchased VAZ-2110 tank and wrap it with a metal plate that is less wide so that it follows the contours of the tank. Next, mark on the plate the places where the screws will be screwed in. We take a wide plate and screw it to a narrow plate as shown in Fig. 1. We wrap the tank with a wide plate similar to the narrow one. Then we cut the plates in place, so that the rubber crimping belt of the VAZ-2110 can be pulled onto the tank with force and press the thick plate.

We twist one end of the narrow plate around the retaining ring of the crimp belt and clamp the ring.

Rice. 6. Crimping the ring of the crimping belt of the VAZ 2110 tank.

At the other end of the narrow plate, drill a hole with a diameter of 10 mm and bend it slightly away from the tank.

Rice. 7. View of the finished bracket.

Now we take the finished bracket and use a hammer to hit the heads of the screws to make holes at the previously marked points on the bracket of the old tank. This method is the most appropriate, since it is impossible to get to the bracket with a drill and drill bit. We screw the bracket (the screws will screw in with great effort). We replace the hose going from the engine to the old expansion tank with a hose from a VAZ-2110.

We insert the tank into the bracket and tighten the crimping belt. We insert the hose going to the expansion tank and tighten it at the ends with clamps. We will also need steam removal hoses for the expansion tank of the VAZ-2110 - 2 pcs. We put one hose on the tee fitting, the other on the radiator fitting. We cut the hoses to the required length in place.

Rice. 8. Vapor removal hoses and expansion tank pipe of VAZ-2110.

If the steam removal hoses are simply put on the tank fittings, then the problem of coolant leakage through the tank cap arises, because the pressure of the coolant hits the lid directly. To fix the problem, we will need a disassembled antenna from the radio receiver and an empty tube from the gel pen paste. From the disassembled antenna, we will need a tube of small diameter (about the same as that of a gel pen paste), and the length should be approximately 15 - 17 cm. We expand the holes in the tank fittings with a drill with a diameter comparable to the diameter of the tubes we prepared. We insert the tubes in this way - into the upper fitting of the tank we insert a tube from a gel pen, to it we attach a steam removal hose coming from the radiator, into the lower fitting we insert a tube from the antenna, and we attach the hose coming from the tee. If the coolant pressure inside the tank still reaches the lid, you can bend the tubes inserted into the fittings inside the tank.

Step-by-step replacement of the expansion tank VAZ-2110

Of course, it is better to entrust the maintenance of the iron horse to the service station masters. However, the services of specialists are not cheap. You can save your money by taking care of the maintenance of not particularly complex parts, which are quite possible to replace yourself.

Sometimes owners of one of the most common Russian cars, the VAZ-2110, are faced with a situation where their car needs to replace the expansion tank. And this is exactly the case when a car enthusiast can easily do without specialists and carry out repairs on his own. Only a little preliminary theoretical preparation is required.

First, let's figure out what a car's expansion tank actually is. This component of the cooling system primarily serves as a reservoir for excess coolant (antifreeze). An expansion tank is also needed to remove steam and excess pressure.

The structure of the expansion tank of the VAZ-2110 is quite simple. The part is made of plastic. At the top, as a rule, there are two holes: an antifreeze temperature sensor is mounted in the neck of the first, which transmits data to the dashboard, and the second has a cover with a spring-loaded release valve. Note that this is the design of the old-style expansion tank. Recently, car dealerships have been offering expansion tanks of a slightly different type to VAZ-2110 owners. The new type tank has a body of a different shape, equipped with only one neck (without a sensor).

The “ten” expansion tank is located in its engine compartment on the left side, behind the pillar glass. There are not many options for troubles that can befall the expansion tank.

Possible faults

Often, drivers who have a VAZ 2110 are faced with malfunctions of the tank valve cover: when the engine overheats, it automatically opens. For certain reasons, the lid may not move in any direction, which causes excess pressure and the container may burst or even explode. If a similar situation occurs while driving, do not turn off the car engine; you need to stop and wait for the fan cooling the radiator to turn off.

Valve cover damage

The expansion tank 2110 is directly connected to the fan and radiator, as a result of which their condition must be monitored. Parts that cool the engine should be inspected regularly. In summer, keep an eye on this constantly, as the air temperature is relatively high. If you notice that the amount of antifreeze inside the container begins to decrease, find out whether the entire system is tight. If there are small drips from the neck of the tank to the surface of the liquid, this means that it is working properly. That is, the lid valve is working properly.

Let's look at each of them

The problem may arise with the valve plug - the cover may simply jam. Since its main purpose is to remove steam, if the lid breaks, excess pressure occurs inside the tank. This situation is quite capable of leading to the tank simply bursting. It is important to remember that if the cover jams while driving, do not turn off the car engine. Stop driving and wait for the cooling fan to start operating.

Another problem may be simple wear of the neck thread, which in most cases leads to either the inability to tighten the lid or a leak in the seal. Of course, you can temporarily use a seal, but it is still more advisable to completely replace the entire expansion tank.

A malfunction of the expansion tank may also be detected, such as a leaky connection between the pipe and the tank. This problem can be solved by using a special sealant.

Well, and finally, the most “conspicuous” problem is the actual damage to the tank itself. It doesn’t matter what caused this problem: manufacturer’s defects, natural wear and tear of the material, or rupture as a result of increased pressure, in any case, only purchasing a new expansion tank can correct the situation. On the Internet you can find advice on gluing or sealing a vessel, but it is hardly advisable to do so, because the price of the part is not so high.

So, the decision about the need for replacement has been made, a new expansion tank has been purchased - it’s time to begin the “operation”. First, let's prepare the tools:

• screwdrivers;
• keys;
• pliers.

It is also worth taking care of new clamps and sandpaper (it will help smooth out possible roughness on the parts, which will contribute to their better fit).

First of all, you need to drain the coolant. Naturally, the car must cool down before the procedure. It may not be possible to drain the antifreeze directly from the tank; in this case, you will have to drain the liquid from the entire cooling system.

After disconnecting the refrigerant level sensor connector, use screwdrivers to twist the screws on the clamps and loosen them. The next step is to remove the hoses attached to the tank. All that remains is to unfasten the fastening belt and remove the expansion tank.

Having installed the tank, all of the above steps will have to be repeated, but in reverse order. The final step is to add coolant. By the way, sometimes VAZ-2110 owners wonder whether the amount of antifreeze poured into “tens” equipped with engines with 16 valves differs from their “sisters” with an engine with 8 valves. The manufacturer's answer is quite definite. The filling volume of the cooling system, ensuring its uninterrupted operation, is 7.8 liters. And this rule works both for “fresh” VAZ-2110 cars and for old-style units.

After completing work on replacing the expansion tank, it is necessary to check the functioning of the cooling system. To do this, you will have to warm up the engine to operating temperature and wait until the fan turns on.

As you can see, the process of replacing the expansion tank of a VAZ-2110 is not particularly complicated, which means that almost any owner of a “ten” can easily carry it out independently, thereby significantly saving their financial resources.

Self-replacement of the expansion tank on a VAZ 2110

Every car has an expansion tank. The domestically produced VAZ 2110 model is no exception. This container serves to remove excess heat from your car's engine.

Sometimes it happens that the tank itself or its lid fails. This leads to the need to carry out minor repairs, replace a single element or the entire container assembly. You don't have to be a professional auto mechanic to do your own repairs. You just need to know some nuances.

Some useful tips

To prevent a malfunction of the expansion tank from taking you by surprise, follow these recommendations:

Constantly pay attention to the readings of the coolant temperature sensor. If you find that the permissible values ​​are exceeded, immediately go for diagnostics or check the functionality of the tank yourself. At least once a month, inspect the expansion tank when the engine is hot to identify damage. Monitor the refrigerant level

Having detected its fall, find and eliminate the cause of the leak. If the refrigerant boils in the tank, do not continue driving under any circumstances - this will damage the engine. When planning to replace the tank, buy products from trusted manufacturers in specialized stores.

What does he look like?

Externally, the expansion tank is a plastic container. Liquid is poured inside this container, which is directly involved in cooling the engine.

The design of the element includes hoses closed in a circuit, a float sensor built into the lid or plug of the tank. Whichever is more convenient for you. It is this sensor that transmits information about the current coolant temperature. When the permissible values ​​increase, the corresponding warning light lights up on the dashboard.

Complete structure

Where is he located?

To replace a damaged container, you first need to determine where it is located.

The location of the expansion tank is the engine compartment on the driver's side, right behind the pillar glass.

Such an arrangement in the VAZ 2110 certainly cannot be called successful, since there are metal elements on all sides of the plastic tank. Because of this, problems arise with the expansion of the plastic, sometimes the tank simply bursts.

Depressurization of the tank occurs especially often in the summer, when there is intense heat outside. The manufacturer, represented by AvtoVAZ, took this problem into account when developing new models. And the owners of the “ten” have to put up with this arrangement of the tank.

Container location

Possible problems

In fact, ruptures of plastic containers do not occur so often, so you should not be alarmed in advance when purchasing a used VAZ 2110.

Much more often, owners of this domestic car are faced with a breakdown of the valve cover of the tank. It is responsible for relieving excess pressure when the power unit overheats.

It is this lid that can jam, causing pressure to build up inside the container, which can ultimately lead to rupture of the plastic.

If such a problem catches you on the road, do not turn off the engine under any circumstances. You need to stop and wait for the cooling fan to turn on.

Preventive measures

As you understand, the expansion tank is directly connected to the radiator and fan, therefore maintaining the tank in working condition is the direct responsibility of every car owner.

Prevention includes the following activities:

• Periodically inspect the condition of the plastic container and its individual elements;
• If you find that the coolant level in the tank is too low, add the missing amount;
• If it soon becomes noticeably smaller again, check the tank for leaks. Most likely, liquid is leaking somewhere;
• Observe the condition of the tank neck. If there are traces of drips on it, that's good. This phenomenon indicates that the valve cover is triggered and relieves excess pressure. Hence the traces of coolant.

Possible malfunctions - what to prepare for?

Very often, owners of VAZ 2110 are faced with malfunctions of the valve cover of the tank. It relieves excess pressure when the engine overheats. For one reason or another, the lid may jam, resulting in excess pressure being created, up to the explosion of the container. If you encounter such a problem while driving, do not turn off the car engine under any circumstances, just stop and wait until the radiator cooling fan turns off.

Reservoir valve cover malfunction

The expansion tank is directly connected to the car's radiator and its fan, so it is very important to maintain them in good condition. Periodically inspect all engine cooling elements, this should be done especially often in the summer when the outside temperature is very high. If you see that the coolant level in the reservoir is decreasing, check the system for leaks. The normal operation of the expansion tank is indicated by small drips from the neck cap to the surface of the liquid. This indicates that the reservoir cap valve is operating correctly.

What to choose?

If you still need to replace the tank, you first need to choose what exactly you will replace the old tank with.

Today there are several decent options on the market that are perfect for your VAZ 2110.

Option	Peculiarities
Standard tank for "ten"	Factory version, which is optimal in terms of price and quality. Sometimes you can’t think of anything better than native parts
Foreign analogues	If you can find the perfect tank, you're in luck. The quality is up to par and it performs its functions perfectly. But finding such an option is extremely difficult. Plus the price is higher
Capacity from Priora	Many consider it an ideal choice for the VAZ 2110. It costs about 300 rubles. You can find it by catalog number 2170-1300060. The walls are thicker, which has a positive effect on reliability. Just keep in mind that there are two types: For Priora with air conditioning; For cars without air conditioning (one lower and two upper fittings)

If you choose to replace the tank from Priora, then you should take the version for a car without air conditioning.

Types of spare parts

Expansion tanks come in different types. They are classified into types according to manufacturer, condition, place of purchase, etc.

There are capacities for:

• Two fittings.
• Three fittings.

The expansion tank can be equipped with pipelines or sold without them. In the latter case, the price of the part will be lower.

According to the manufacturer, the spare part can be:

1. Original (produced by the AvtoVAZ plant).
2. Non-original (from any other company).

According to the condition, the expansion tank for the VAZ 2114 is:

• New.
• Used.

At the place of purchase, a car part can be:

Expansion tanks from the following manufacturers are suitable for the VAZ 2114:

• Auto-Polymer.
• AvtoVAZ.
• Partner-NK.
• Master-M.
• Tolyatti.

Replacement or repair?

Is it even possible to repair the tank? If he was torn to pieces, then no.

This element is subject to repair only in the event of failure of components - a float or a cover.

If the seal is lost, regardless of the reasons, repair is impossible. Theoretically, you can glue the plastic together and make patches, but such savings will not lead to anything good.

To replace the cover, use a spare part from the VAZ 2199 model. Although this model is older than the “ten”, the elements are interchangeable. Plus, the quality of the cover from the nine turned out to be better, and the thread matches perfectly.

Simply unscrew the broken cap and screw a new one in its place. That's the whole point of the replacement.