How much brake fluid is in a VAZ 2115 injector 8 valves

WHAT BRAKE FLUID TO FILL IN A VAZ 2114

The VAZ 2114 car is equipped with a brake system with a hydraulic drive. A special feature of the vehicle on this machine is the diagonal distribution of the brake circuits. If one of them fails, the second provides braking with high efficiency. The working substance for vehicles is brake fluid VAZ 2114 “Rosa”, “Rosa-3”, “Rosa-DOT-4”.

When to change

The main reason for changing brake fluid is moisture getting into the system. This leads to unpleasant consequences. For example, it can simply freeze in winter (this cannot happen with a clean one), and this can cause not only brake failure, but also damage to pipes and other elements of the car. And replacing brake hoses on a VAZ2114. It's not a pleasant matter. However, this process is quite long, and takes about 2-3 years, in the absence of breakdowns in the system, after which it is necessary to replace the brake fluid of the VAZ 2114.

In summer this problem is also relevant. Moisture, as you know, tends to boil. So, prolonged braking can lead to exactly this, as a result of which the car simply stops braking.

Mileage and intensity of brake use also affects fluid performance. For the VAZ 2114, it is recommended to change the fluid in the entire system after 30,000 kilometers. Detailed operating rules are listed in the vehicle documentation.

Vehicle malfunctions leading to replacement of the vehicle with a VAZ 2114

The hydraulic brake system includes many different parts that allow you to operate the brakes using hydraulic fluid. It includes:

1. a tank that is attached to the gas turbine engine and is intended for filling the fuel fluid;
2. metal pipelines of both circuits;
3. flexible brake hoses of front and rear wheels;
4. GTZ installed in the engine compartment;
5. working brake cylinders of front and rear wheels;
6. dual-circuit pressure regulator;
7. a sensor showing at what level the fuel fluid is located;
8. a vacuum booster, the task of which is to create working fluid pressure in the pipelines of the circuits in order to ensure effective operation of the brake systems on the wheels during braking.

A car’s vehicle is one of the main systems that ensures the safety of the driver and passengers of the car, therefore regular preventive inspection of all elements of the vehicle is mandatory for the owner of the car.

The brake fluid on the VAZ 2114, according to the recommendations of technical specialists, is replaced every three years or no more than after 45 thousand kilometers of the vehicle.

At the same time, during the operation of a vehicle, malfunctions periodically occur in its braking system and especially in the hydraulic drive, leading to the need to replace the brake fluid. Knowledge of these malfunctions and the reasons leading to them can help the driver avoid serious troubles on the road, since in this case he can promptly identify the failure and take measures to eliminate it.

Malfunctions in the vehicle resulting in the need to replace the vehicle:

• Leaks from the working brake cylinders leading to significant loss of fuel fluid.
• The formation of air pockets in main pipelines and flexible hoses, which are formed as a result of leaks in vehicle units.
• Rupture or fraying in the flexible hoses on the wheels, in this case the brake hoses on the VAZ 2114 need to be replaced. Damage to metal pipelines is also possible; as a rule, a leak forms due to “chasing”. In both cases, the liquid quickly flows out of the vehicle, so at the slightest sign of disorder in the vehicle, these parts should be checked first.
• Damage or swelling of the sealing rings in the GTZ or wheel cylinders. This also leads to leaks.
• Leakage of fuel fluid through the sealing rings of the rear wheel RD pusher.
• There may be a leak in one of the brake circuits. In this case, partial failure of the brake pedal occurs.
• Quite rarely, but metal pipelines become clogged.
• As a result of mechanical damage, failures of the GTZ, RTC, vacuum unit and other vehicle elements are possible. To eliminate these damages on the VAZ 2114, replacing the brake fluid is a prerequisite.

Filling brake fluid in VAZ 2115

Replacement process

Before starting work, you need to stock up on the following tools:

• Hose 10-15 centimeters long and 6 mm in diameter;
• Wrenches for 8 and 10;
• Plastic bottle;
• Gloves (work clothes and safety glasses are also a good idea);
• Hydraulic fluid (there are a lot of manufacturers, each with its own characteristics).

Having collected all the tools, you can start working. The procedure is not complicated and does not require any professional skills. Most motorists do the replacement themselves.

It is extremely difficult to do this kind of work alone, so I recommend taking a friend with you who will undoubtedly help in the process. This will not only save time, but will also greatly simplify the procedure.

We are changing bunker - 4 in the VAZ 2114 in stages:

1. We park the car on a pit or overpass;
2. Remove the cap from the brake reservoir;
3. We go into the pit. Here we need a fitting located on the rear right wheel;
4. It is closed with a cap, which we remove;
5. Take a bottle and pour some DOT-4 into it;
6. We put the hose on the fitting and lower the other end into the bottle (do not forget to lower it to the bottom);
7. Now you need someone to press the brake pedal. Smoothly 7-8 times in a row, and the last press all the way and hold;
8. Unscrew the fitting a couple of turns;
9. We observe how the waste product comes out;
10. When 1-1.5 centimeters remain in the tank (it is important not to be late, otherwise air will enter the system), tighten the fitting and release the pedal;
11. Add the missing DOT-4 to the tank (up to the Maximum mark);
12. Then we repeat the procedures with the fitting and pressing the pedal until clean pillbox flows into the bottle;
13. We tighten the fitting and move on to the next wheel.

Selecting brake fluid and the procedure for replacing it on a VAZ 2114

For the normal functioning of the vehicle’s vehicle with maximum efficiency, it is important for the car owner to correctly select the working fluid for the hydraulic brake drive. Modern TG, such as “Rosa” and its varieties, are based on polyglycols and this accounts for from 93 to 98 percent of the total composition. The rest is various additives that are necessary to combat oxidation of fuel fluid and prevent corrosion of metal parts of the vehicle.

When purchasing a vehicle, you need to pay attention to the following parameters:

1. boiling point, it should be high to reduce the likelihood of plug formation from steam bubbles;
2. good viscosity, which characterizes the ability to pump liquid in the system;
3. the ability to absorb water, that is, hygroscopicity;
4. ability to lubricate internal surfaces;
5. neutrality in relation to rubber parts of the braking system;
6. oxidation resistance and corrosion resistance.

According to the TZh class for the VAZ 2114, they are marked DOT 3.

How to change the brake fluid on a VAZ 2114 - for the correct actions you need to carefully study the car’s operating manual.

Before starting work, you need to prepare the necessary tools and materials:

• TJ in the amount of 0.5 liters;
• keys and screwdrivers;
• transparent flexible hose;
• container for draining spent fuel oil;
• rags to wipe surfaces, especially plastic and painted ones, since the liquid is toxic and aggressive to these surfaces.

Required tools and materials

To get to the fittings in the absence of an inspection hole, we need to unscrew the wheels. Therefore, you need a jack, stops and a wheel wrench. If there is a hole or overpass, the wheels do not need to be unscrewed. fluid will also come in handy . On vehicles of the Samara-2 family, RosDot of the fourth class is used. In addition, we need a plastic bottle and a hose that will be put on the fitting (so that the liquid does not splash in different directions, but goes out into a certain container). To unscrew the fitting, you need a regular 8mm wrench.

How much brake fluid do you need to change?

Maintaining the required level of brake fluid is necessary for the proper operation of the vehicle's braking system. How much is needed can always be found in the service book, but often car owners are not used to looking into it, but act empirically or look for the answer on the Internet. It is these users that we will try to help figure out the question of how much brake fluid is needed for replacement and which one should be poured.

Brake fluid is the working fluid of the brake system, with its help the force created in the master cylinder is transmitted to the wheel pairs.

If the brake fluid level is below the minimum mark (by the way, this will be indicated by the corresponding icon on the instrument panel - a red circle with waves inside), then you need to top it up. It also doesn’t hurt to check the master brake cylinder and the brake system as a whole, since a decrease in the fluid level may indicate a malfunction or wear of the master cylinder gaskets. As a rule, the brake system of a passenger car contains from 0.55 to 1.0 liters of brake fluid. And its specification can very often be indicated on the body of the expansion barrel or its cover.

When checking, do not forget to pay attention to the color of the liquid . The new TJ is transparent with a yellowish tint. During operation, it changes its color and becomes dark, this is mainly due to the accumulation of various impurities. If the fluid has darkened, this may mean that a complete replacement is necessary and simple topping up is not enough. Experts recommend replacing brake fluid approximately every 2-3 years , this is the optimal interval in accordance with hygroscopicity and exposure to temperature loads. For the brake mechanisms to function properly, the fluid must have a number of properties and also meet a certain standard.

Preparing for surgery

So, put the car in a pit or on a flat surface, then open the hood and remove the connector for the brake fluid level sensor. Then unscrew the cap and add liquid to the maximum level. After this, screw on the lid.

Please note: if you use a lift during the work, when bleeding the rear brakes you need to place the slot in the brake force regulator (also called the “sorcerer”). To do this, you can use a screwdriver by placing it between the rod and the bracket.

When bleeding the front brakes, this slot must be removed.

How to bleed the brakes on a VAZ- 2115 ? During the work we will need one assistant. He will press the brake pedal on command.

Types and properties of fuel fluid

Old and new brake fluid

Any brake fluid has 93-98% of the main composition and from 2 to 7% of additives, which, in fact, are the key component for imparting the declared characteristics.

In general, if you look at it this way, the properties of brake fluid depend on the combination of its components. Depending on the composition of the base, TJ is divided into 3 groups.

Types of brake fluids:

1. Mineral (mineral oil LHM) . They consist of alcohol and castor oil.
2. Glycolic . Developed on the basis of polyglycols and their esters.
3. Silicone . Manufactured from silicon-organic polymer products.

Regardless of the type and composition, all brake fluids are divided into two classifications.

Classification of TJ:

1. By viscosity.
2. By boiling point:

• for “dry” liquid (without water);
• “wet”, which contains 3.5% water.

If the boiling point exceeds the permissible norm, then there is a risk of a vapor lock forming in the system (as a result of moisture evaporation), which can lead to breakdown and failure of the brake pedal.

VAZ 2115 | Refill tanks

2.3.3. Refill tanks

Volumes are indicated in liters.

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Brake fluid standards

In practice, and in most cases, it is customary to use the American quality standard FMVSS No. 116 (Federal Motor Vehicle Safety Standard), which was developed by the US Department of Transportation (DOT for short). So, often, in modern cars, either DOT 4 is used on a glycol basis, or DOT 5.1 (including glycol and silicone compounds). But in cars manufactured more than 20 years ago, BSK or DOT 3 fluid can be used.

Volume of fluid in the brake system

Basically, the brake system holds from 0.55 to 1.0 liters of fluid, this depends both on whether the car has an ABS system and on the size of the car. The period for replacing brake fluid in most cars is 2-3 years of use, or 40-60 thousand mileage . To determine a more specific interval, you need to look at a specific fluid standard and driving characteristics. For example, in sports cars the TZ is changed every 5-10 thousand.

But since the question of the required volume of brake fluid in the system and its standard is asked only by owners of ordinary cars, and not premium or business class ones, we will give specific examples for cars popular in the CIS countries.

What and how much brake fluid is in some cars

Design

The task of the driver and car owner part-time is to constantly monitor the condition of the brake system.

Failure of one of its elements can lead to serious consequences. Therefore, you should know what exactly is included in the braking system.

• Brake fluid reservoir mounted on the GTZ;
• Metal pipelines of two circuits;
• Flexible brake hoses for front and rear wheels;
• GTZ ( brake cylinder located in the engine compartment);
• Brake cylinders of front and rear wheels;
• Pressure regulator;
• Brake fluid level sensor;
• Vacuum booster.

Tank with TJ

According to the recommendations of specialists, the replacement of the TZ is carried out once every 3 years, but at least once every 45 thousand kilometers.