Oil level sensor for VAZ-2110 car with 8 valves

The VAZ 2110 uses a kind of small on-board computer that indicates the presence of fluids in the vehicle system. This bookmaker is located on the center console next to the clock. Its functions include readings of coolant and oil levels, lamp integrity, etc. One of the useful functions of the BC is to indicate the oil level, which is measured using a special sensor, and it is called an oil level sensor. This article is about this sensor.

Purpose of the sensor

It is considered the norm among car owners to open the hood as soon as possible and check the engine oil level on the dipstick. However, in critical situations, oil can leak out of the engine very quickly. This happens if an unexpected blow to a stone breaks the oil pan or if the crankshaft oil seal leaks.

In such a situation, the engine must be turned off as quickly as possible, because seconds count. Relying solely on the pressure sensor in the lubrication system is not always reasonable. If the oil pump is working properly, it can maintain operating pressure until the last drop of oil.

Therefore, on modern passenger cars, in addition to the pressure sensor, a DUM is also installed. It does not replace the usual dipstick, since it is not able to inform the driver about the amount of oil in the engine and that it is time to top it up. The only function of the DUM is to signal in the car interior that an emergency situation has occurred when the amount of oil has dropped to a critical level and an immediate stop is required.

Oil rotation methods

In practice, two options for oil rotation are used:

• oil change with engine flush;
• carrying out work without flushing the engine.

In answer to the first question, how to change the oil of a VAZ 2110 with engine flushing, the following actions are required:

• drain the waste;
• add oil to flush the engine, then run the engine at idle speed for 10 minutes;
• drain the flush;
• add oil for new operation of the power unit (the disadvantage of this method is the presence of flushing residues, which may subsequently affect the operating mode of the “engine”).

When carrying out the procedure without flushing the engine, new lubricant is immediately added through the crankcase neck, where it is mixed with the remnants of previously used engine oil, which does not improve its properties.

The order of replacing engine oil and its filter:

1. Place the car on a lift or inspection hole, and then remove the plug from the crankcase neck to create favorable conditions for oil leakage. 2. Using a 17mm wrench, remove the drain plug of the pan and collect the waste in a technical tank.

3. Remove the used oil filter.

4. If you do not have a special filter remover, you can use auxiliary tools.

5. Before installing a new filter for cleaning engine oil, it is recommended to fill in fresh engine oil to half its volume and lubricate the sealing ring of the product with the same lubricant. This is done in order to prevent the creation of so-called “air cushions” when starting the unit.

6. Install the filter and oil drain plug to the workplace.

7. Add fresh aggregate oil to the crankcase and use a crankcase dipstick to test the amount of added fluid. Control line - approximately 2/3 of the distance up the dipstick from the bottom line, indicating the minimum lubrication level.

8. After adding oil, replace the filler plug and the dipstick.

We start the engine, after the red banner fades, indicating insufficient oil pressure in the system, turn off the unit, check the oil level with a dipstick, and if necessary, top up to the required level.

Marking

All engines of the VAZ-2110 family use one type of part, the catalog number of which is: 21083-3839210-03.

The price of spare parts, depending on the retail chain, is 250–400 rubles. You can find products from domestic manufacturers, as well as Chinese parts. In appearance, they can be easily distinguished by the color of the float. For repairs, original spare parts bearing the LADA brand are preferred.

Getting ready for replacement

Before changing the oil, carefully read several recommendations that all masters adhere to.

• The lubricant should be drained after a short trip, when the power unit has not yet cooled down, because warm oil has better fluidity, which means it can be drained more.
• If the engine is cold, it is necessary to warm it up to 80C.
• It is advisable to fill in the same oil that was poured into the engine before.

  Engine VAZ 2110

How much oil should I pour?

Before changing motor lubricant, many drivers have a question about how much oil should be poured into the VAZ 2110 engine. Here opinions differ a little, because some of the oil remains in the system, and some drivers prefer to pour oil up to the MAX mark, while others prefer to pour a little less. There are also power units with 8 valves, and others with 16. But on average, this figure ranges from 3.2 to 3.5 liters. Therefore, you need to buy a four-liter canister - this amount will definitely be enough.

Which motor oil to choose?

When changing the oil, you can immediately replace the oil filter. Therefore, when buying oil in a store, do not forget to purchase an oil filter of the same type that is installed in your car.

Oils are divided into 3 types:

• synthetics;
• semi-synthetic;
• mineral water

It is very important to determine exactly what kind of oil your engine needs:

• If the power unit of your car is in excellent condition, does not consume oil, and has stable pressure, you can use synthetic all year round and change it according to the regulations.
• If the engine is in poor condition, seasonal lubricants are recommended: synthetic, semi-synthetic or mineral. Once you decide on the type of lubricant, decide on the brand.

Today, there are various brands of high-quality motor lubricating mixtures on the market, and this is the greatest difficulty. Try to decide for yourself the best ratio of quality and price. The viscosity is not lower than 10W-40 (otherwise it is possible that it will begin to leak through the seals).

The most suitable brand of oil, according to many, is Shell Helix.

If you have already decided on your brand a long time ago, then buy it and beware of counterfeits - in today's market, counterfeit products account for approximately 40% of the total volume.

When purchasing oil in special stores, for which the main thing is their reputation, you will probably pay more, but it will be a justified overpayment, which is compensated by excellent engine performance.

Part device

The design of the product itself is elementary. It is a normally open sealed contact (reed switch) connected to the on-board control system warning lamp.

The contact is located inside a curved tube, outside of which the float slides freely. There is a magnetic washer inside the float, the field of which is capable of closing the reed switch contact. When the sensor tube is immersed in oil, the float floats and the electrical circuit opens. But if there is no lubricant in the crankcase, the float drops to the lower position and the magnet acts on the reed switch contact, closing the circuit. The sensor connection is single-wire, the second wire is the engine ground.

Important information that everyone should know

It also happens that when replacing the DDM, oil leaks out again. If you change the sensor again, believing that this is the reason, oil will flow out of it after a certain time. What is the reason? It turns out that in most cases the reason for this lies in sensors that are produced either in the country of the Celestial Empire or in fake workshops. Specialists, car mechanics, drivers - they all often complain about defective sensors purchased on the market. Such fake DDMs have to be changed two or even three times.

Where is the sensor located

The part is located at the bottom of the cylinder block, to the left and below the oil filter. To get to it, you will need to drive into an inspection hole or lift and dismantle the pallet protection. To check the condition of the wiring, you will need to clean the connector from dirt and oil residues that inevitably fall on it when unscrewing the filter.

Replacement

The entire oil change process can be divided into three main stages:

• Draining old lubricating fluid;
• Washing;
• Filling with new lubricant.

We will go through each stage in more detail in order to understand all the nuances of the procedure.

Removing the plug

Drain

In order for the new lubricant to show its best side, the car owner’s first priority is to drain the old oil. For this:

• Unscrew the oil filler plug. This will get rid of a possible vacuum, the liquid will be able to drain better from the crankcase;
• Do not forget the above recommendations regarding a warm engine. Heated oil has a lower viscosity and therefore flows out more efficiently and in larger volumes;
• Place an empty container with a volume of at least 5 liters under the drain hole;
• Remove the plug from the drain hole;
• Allow the oil to drain into the prepared container for some time;
• This usually takes about 10 minutes;
• Do not try to keep the plug in your hand when unscrewing at the cost of exposing your skin to the stream of oil. It is hot, so you can easily get burned. If the stopper falls into the container when the liquid has cooled, you can easily remove it and clean it;
• When the grease completely stops draining, the draining can be considered complete.

Drain the grease

Flushing

Whatever one may say, even the most thorough draining of the lubricating fluid will not allow you to fully clean the system. Therefore, we recommend flushing before filling.

1. Screw the plug from the drain hole.
2. Pour a special flushing solution into the oil filling hole to the minimum mark.
3. Turn on the engine and let it run for about 15 minutes.
4. Stop the engine and drain the fluid through the drain hole, as when removing old oil.
5. Remove the oil filter and wait until the remaining lubricant is completely drained. Then install a new filter in its place.
6. Be sure to fill the filter with about 100 ml of fresh new oil.

Filling the filter

Fill

Now we have reached the last step - adding new oil to your car's engine. The procedure for the VAZ 2110 looks like this:

• The oil filter installation area is thoroughly wiped with a rag;
• A little oil is poured into the new filter. We have already told you about its quantity;
• Using the same lubricant, treat the o-ring. It must be new. Never use the sealant from an old filter;
• Screw in the drain hole using a plug;
• Install the oil filter in its rightful place. Do this manually, without using tools. Otherwise, the filter may be damaged;
• Gradually pour new fluid through the filler hole. This should not be done quickly, since the oil must have time to distribute throughout the system;
• If the canister turns out to be inconvenient with a wide neck, use a simple household funnel;
• Fill in about 3 liters of lubricant, then check the level with a dipstick;
• You will most likely need to add a little more liquid;
• Ideally, the dipstick should show a level between the minimum and maximum indicators;
• Tighten the filler hole with a plug;
• Reinstall the dipstick;
• Start the engine and let it run for a while;
• As soon as the oil level light on the dashboard stops lighting, the engine can be turned off;
• We take the dipstick again and check how much oil is in the system at the moment. If necessary, add lubricant;
• Be sure to wipe off any surfaces that may have oil on them. This is especially true for the engine. Do not allow any traces of grease to remain on it. When the engine heats up, this is fraught with consequences.

Checking the lubricant level

If you strictly follow the instructions and also correctly select the lubricant for your VAZ 2110, the replacement procedure will become an easy task for you, which you will cope with on your own in literally an hour.

So that you understand, the cost of such a procedure, not counting washing, at a service station will cost you at least 500 rubles. So the ability to change the lubricant in the engine with your own hands is also a great way to save your budget. Considering that replacement is carried out approximately once every 8 thousand kilometers, you can save a lot of money over the entire period of ownership of your VAZ 2110.

1. Why do you need oil in the gearbox?
2. Types of oils and their choice
3. Substitution rules
4. Replacement procedure

In order for the car to work properly, it is necessary to periodically perform certain preventive maintenance, scheduled repairs, replacement of consumables, and so on. Moreover, the frequency is indicated in the repair and operating manual for your car. A procedure such as changing the oil in a VAZ 2110 gearbox does not take much time and effort. This will take you about an hour, but you won’t have to hire specialists or pay them money for it.

How to check serviceability

The need for checking arises more often if, when the oil level in the engine is sufficient (controlled by the dipstick), a warning light turns on in the cabin. Or, on the contrary, it does not light up when the ignition is turned on before starting the engine.

To understand that the problem is in the sensor and it needs to be measured, a multimeter is enough, and if it is faulty, replace it. Having removed the block from the terminal, turn on the ignition. Check if there is 12 V voltage on the wire.

Why does the DUM lamp light up?

Fault indicator

There may be only two reasons for this in total.

1. The oil sensor has broken down, or its contacts have oxidized, which is why the device can be considered faulty.
2. The oil level has dropped below critical.

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