We change the brake fluid on a VAZ-2112 with our own hands

Typically, the VAZ 2110 brake fluid is replaced every few years (40 thousand kilometers). It is better, however, to do this annually. Agree, all this is your immediate safety, and therefore you should not show excessive negligence and take into account all possible nuances. Moreover, it cannot be said that the procedure is extremely difficult for an ordinary motorist.

How to choose new brake fluid

Usually replacement begins with a trip to the store. A good, but no less expensive (almost 400 rubles) would be a bottle of American brake fluid from Step Up Brands (DOT 4). No less worthy, but much more affordable, will be the offer of the European brand Mobil (about 250 rubles).


Brake fluid from Mobil

If you want to save an extra hundred rubles, you will lose a little by choosing a domestic manufacturer. Here, the Dzerzhinsky Tosol-Sintez (RosDOT 4.5) has proven itself well, which will ask only 120 rubles for a liter bottle of its brake fluid. The offer from Siburneftekhim (Nordix Kapros brand), which is also very good in its performance characteristics, costs the same.

What oil is recommended for VAZ-2112

Let's consider the characteristics of the oil suitable for VAZ-2112 engines.

Generation 1 (1999-2009)

  • SAE classification for 1.5 72 hp engine. With. (gasoline, manual) – 10W-40, 5W-40.
  • SAE classification for 1.5 94 hp engine. With. (gasoline, manual) – 10W-40, 5W-40.
  • SAE classification for 1.5 78 hp engine. With. (gasoline, manual) – 10W-40, 5W-40.
  • SAE classification for 1.5 92 hp engine. With. (gasoline, manual) – 10W-40, 5W-40.
  • SAE classification for 1.6 81 liter engine. With. (gasoline, manual) – 10W-40, 5W-40.
  • SAE classification for 1.6 90 liter engine. With. (gasoline, manual) – 10W-40, 5W-40.
  • SAE classification for 1.8 98 liter engine. With. (gasoline, manual) – 10W-40, 5W-40.

Recommended manufacturers of motor oils for VAZ-2112: Shell Helix Ultra, Mobil Ultra, Eneos superGasoline, Total Quartz, Mobil Super.

Diagnosis of problems with old VAZ brake fluid

The big problem with the brake fluid for the VAZ 2110, as for almost any other car, is its hygroscopicity. It simply absorbs moisture like a charm. If the water content in the brake fluid is higher than 3-5%, it may boil and the brake pedal, accordingly, will fail.

Visually, the liquid should be clean and transparent and free of foreign impurities. Also, to diagnose it, a special tester is often used to determine the percentage of moisture in the total volume of liquid in the tank. This pleasure costs about one and a half thousand rubles. Of course, it’s not that cheap, but believe me, it’s really convenient to always have this kind of device with you in your car.

How much oil is required for VAZ-2112

Let's pay attention to the filling volumes of engine oil for VAZ-2112 engines.

Generation 1 (1999-2009)

  • For engine 1.5 72 l. With. (gasoline, manual) the required oil volume is 3.5 liters.
  • For engine 1.5 94 l. With. (gasoline, manual) the required oil volume is 3.5 liters.
  • For engine 1.5 78 l. With. (gasoline, manual) the required oil volume is 3.5 liters.
  • For engine 1.5 92 l. With. (gasoline, manual) the required oil volume is 3.5 liters.
  • For engine 1.6 81 l. With. (gasoline, manual) the required oil volume is 3.5 liters.
  • For engine 1.6 90 l. With. (gasoline, manual) the required oil volume is 3.5 liters.
  • For engine 1.8 98 l. With. (gasoline, manual) the required oil volume is 4.0 liters.

Replacing brake fluid, basic rules

We have somehow decided on the question of when to change the brake fluid on your car and why. Now we should talk about how this is done. It is impossible to say that the process is extremely complex and labor-intensive. However, it is necessary to take into account a certain mass of nuances, without which an adequate replacement of brake fluid is impossible.


Replacing fluid in the reservoir

To begin with, we highly recommend taking at least a liter container. Even though the actual volume occupied by the liquid in the system is much smaller, we will need the excess liquid for flushing its main parts and lines. If you give preference to a domestic manufacturer, then the price will not be affordable at all.

Be careful when using brake fluid. The substance is quite aggressive in its chemical composition and perfectly corrodes the insulation of VAZ electrical wiring. If liquid gets on the car body, immediately wash it off with cold water, do not let the brake fluid get on your skin and especially your eyes. Do not pour used brake fluid down the drain; there are specialized disposal points.

Preparatory stage

First of all, let's unlock the pressure regulator. Why is a screwdriver or other gasket inserted between its piston and the plate? The air valve fittings of the VAZ rear cylinders and brake calipers are likely to be covered with a decent layer of dirt and dust. It should be thoroughly cleaned before starting work.


Unlock the pressure regulator

Open the hood of the car and the lid of the brake fluid reservoir. Then we unscrew the fittings on all four wheels and let the fluid drain from there by gravity, taking with it all the debris accumulated in the system. We wait for some time and fill the reservoir of the VAZ 2110 with new brake fluid.

Do not close the fitting until the leaking liquid stops bubbling. Thus, the air is replaced by brake fluid. After all the fittings have been closed, the system needs bleeding, since there is still air in the lines.

What does bleeding the brake system of a VAZ 2110 mean?

Bleeding is carried out with the participation of an assistant, who creates pressure in the brake system by pressing the brake pedal several times and pressing it to the floor. After which a second person opens the drain fitting of the valve and drains a certain volume of liquid along with air and foam. The VAZ 2110 system should be pumped wisely and constantly monitor the fluid level in the tank.


Brake bleeding job

The main thing here is to press the brake pedal correctly without foaming the brake fluid. To do this, we do not make sudden movements or strikes on it. It is correct to press vigorously, but the pedal stroke should be quite smooth. Be sure to keep these recommendations in mind when changing the brake fluid yourself.

You should be extremely responsible when bleeding the brake system, if only for the reason that the presence of air in it means additional losses and unreliable operation of the brakes. Why can the brake system of the VAZ 2110 itself become airy over time:

  • leakage;
  • corrosion of lines and brake cylinders.

The result is sluggishness when pressing the brake pedal and insufficient force of the pads on the brake disc.

Malfunctions and ways to check them

It is possible that you may need to replace the vacuum booster on your VAZ 2110. The cause may be various malfunctions, the characteristic symptoms of which are as follows:

  • When you press the brake pedal, a hissing noise occurs, and at the same time, the engine speed often increases;
  • The car starts to shake;
  • Spark plugs stop working efficiently;
  • Fuel consumption increases noticeably.

You yourself understand perfectly well that if the vacuum brake booster hisses on a VAZ 2110, there is nothing good about it. Therefore, it is necessary to take appropriate action. This applies to all malfunctions that may occur.

Before replacing the vacuum booster on a VAZ 2110, it should be checked.

This procedure is performed as follows:

  • As with normal bleeding of brakes, with the engine not running, press the gas pedal several times;
  • After 5 or 6 presses, keep the pedal in the down position, resting it on the floor, and start the engine;
  • After starting, the pedal itself will move forward a little.

This situation is typical only for a working vacuum amplifier. Therefore, if a vacuum has not formed, check the connections and the hose for leaks, plus examine the condition of the check valve. Often the reason lies in the destruction or deformation of rubber components, which can be easily replaced.

There is also a high probability of damage to the diaphragm, on which a hole is formed over time. You can purchase the diaphragm with a repair kit, the cost of which is no more than 500 rubles.

Replacement

To replace an element, you need to understand the main issue - how to remove the vacuum booster from a VAZ 2110. Directly replacing the old element with a new one will not be difficult, just like the reassembly process.

Therefore, we will tell you about the main thing - dismantling the amplifier. Let's start with the fact that the procedure is not complicated, but it requires accuracy and sequence of steps. If you follow the recommendations, the work will take little time and will not take much effort.

  1. Disconnect the block with wires, which includes brake fluid level sensors in its design.
  2. Hold the booster check valve with one hand and carefully disconnect the hose with the other. It is advisable to disconnect the hose with a strong hand, since this will require a lot of force.
  3. Remove the two bolts connecting the booster and master cylinder.
  4. Carefully remove the cylinder from the amplifier.
  5. There is no point in disconnecting the brake lines.
  6. Give access to the dashboard, which will allow you to unscrew the nuts holding the brake pedal bracket. There should be 4 of them.
  7. It is recommended to dismantle the bracket and amplifier through the engine compartment, since there is enough free space for such manipulations.
  8. Remove the pin lock plate. To do this, pry the finger with a screwdriver and squeeze it out.
  9. Now you can easily disable the brake pedal and booster.
  10. To disconnect the amplifier and bracket, you will have to unscrew the two nuts on the mount.
  11. A new one is installed in place of the dismantled old vacuum amplifier, and the reassembly procedure is performed in strict sequence of the dismantling process.

Special equipment for pumping

There is a special valve for bleeding the brake system. It fits onto the fitting and prevents air from flowing back into the lines. Thus, the liquid in the system is hermetically sealed when the fitting is closed. If you don’t have this kind of device, this is not such a big problem.


Special valve

Instead of a specialized valve, it is quite possible to assemble a very ordinary liquid seal. It is assembled from a small piece of hose of a suitable size, a 0.25-0.5 liter plastic bottle and a small amount of brake fluid in it. The effectiveness of this “old-fashioned” method is no worse than the modern one.

The main nuances of pumping the brake system on VAZ 2110 cars

The correct algorithm for bleeding the system should be observed, taking into account the diagonal separation of the brake circuits. If you do not quite understand what the diagonal separation of the contours of the VAZ brake system is, just follow the following sequence of actions:

  • bleed the system through the fitting of the rear right wheel, close it;
  • go to the front left, follow a similar procedure;
  • open the rear left fitting;
  • We complete the procedure on the front right wheel.

After all work, be sure to check the tightness of all fittings. Ask your partner in the car to press the brake pedal to the floor, and you yourself, wiping the fitting with a dry cloth, visually check for any leaks. Make sure the brake hoses and lines are completely dry. Only after you have checked all the fittings do you put caps on them.

If after several days of driving the brake pedal again becomes sluggish and the performance of the brakes has worsened, you should not be overly upset. Most likely, shrinkage of the brake fluid occurred (re-foaming of the brake fluid and bubbling of the lines with air). This could happen due to corrosion of both the system itself and poor quality of the liquid itself.

Replacing brake fluid on a VAZ 2110 sometimes results in the above-mentioned problems. Nothing wrong with that. We call our partner back and repeat the pumping procedure again. Checking the brake fluid level. Afterwards you definitely shouldn’t have any problems.

VAZ-2112 oil for engines 1.5, 1.6, 1.8, how much and what kind is required?

VAZ-2112 is a five-door hatchback with front-wheel drive, manufactured by AvtoVAZ in Tolyatti. The car was relevant in the second half of the 1990s, as well as in the 2000s. The car entered the production line in 1999. In terms of design, it was the same VAZ-2110 from 1995. In addition, the hatchback of the same name was unified with the VAZ-2111 station wagon. The differences were only visible in the body type, and the list of trim levels remained the same. In addition, compared to the VAZ-2110 sedan, the hatchback of the same name was distinguished by a shortened body. This also applies to the even shorter three-door modification of the Lada 112. It is noteworthy that the VAZ-2112 was supplied to other countries - for example, in Greece the car was called Lada Venus.

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