Which spark plugs are better for Priora 16th grade: review, types and recommendations

Which spark plugs are better for Priora 16th grade: review, types and recommendations

Correctly selected spark plugs for Priora are an essential condition for normal engine operation.
The choice of spark plugs depends on what engine is installed in your car. 8 and 16-valve power units require this device with a different heating range. The heating range is the amount of thermal energy that the spark plug is capable of conducting into the combustion chamber of the fuel mixture. Using a spark plug with an inappropriate heating range can cause problems and engine malfunctions. For example, using an excessively “warm” one causes it to overheat and not have time to cool down to the required temperature during the operating cycle of the engine. When a new portion of fuel enters the cylinder block, premature ignition of gasoline may occur due to the high temperature of the spark plug, as a result of which the operation of the power unit will be disrupted. Excessively “cold” igniters of the fuel mixture, operating in a temperature range of up to 400 degrees, on the contrary, are at risk of completely losing their functional properties due to the soot of burnt fuel formed on their electrodes.

Let's figure out which spark plugs to put on the Priora 16 valves. Many drivers agree that these ignition elements are consumables, for which there is no point in overpaying, since they will still wear out after 20-30 thousand kilometers. If you have a similar opinion, the domestically produced AU17DVRM is your choice. They are not expensive and work, in principle, quite well.

When choosing among products from foreign manufacturers, we recommend giving preference to the following companies:

The best spark plugs for a 16 valve engine, according to Prior owners, are made by the Japanese company Denso. Their iridium spark plugs on the Priora - Denso Iridium Power - have proven themselves well, and can travel for about 50-60 thousand km without any problems.

In general, the presence of an iridium electrode significantly increases the durability of the structure; moreover, iridium models retain their original characteristics throughout their entire service life.

For clarity, we present a graph of the increase in fuel consumption as different electrodes wear out.

Graph of increase in fuel consumption as different spark plug electrodes wear (iridium and conventional)

We’ve figured out which spark plugs are best for 16-valve Priora engines – let’s move on to 8-valve engines. The situation is similar for manufacturers: the best budget option is A17DVRM from our ZAZS plant.

Versions of high-quality foreign models tested by Prior owners - NGK BPR6ES and DENSO W20EPR - they are not cheap, but they are worth their price in full.

The Bosch FR7DPX Platinum also performed well. Reviews from prior drivers indicate that with them the car drives differently - the vibration in the engine disappears and the speed picks up better, and there are no problems with ignition even in severe frost.

Any murzilka (operation book) for VAZ cars states that spark plugs must be replaced every 30 thousand km. mileage However, in practice, even the highest quality products rarely travel 30,000 km.

The first sign that a replacement needs to be made is a change in the normal functioning of the engine. You will notice changes in its idle speed, and there will also be problems with ignition.

Unscrew them and visually inspect the electrodes. In normal condition, the electrodes are light gray in color, with a minimal amount of brown deposits allowed. During operation, the electrodes become covered with a yellow or brown coating (this is a normal condition for the middle of their service life).

It is also necessary to pay attention to the spark plug gap between the insulator and the electrode (ideally for Priora it should be 1.1 mm, which is indicated in the service book). The gap increases during operation, so if a check shows that the gap is 2-3 millimeters larger than it was originally, the spark plug needs to be replaced.

The gap can be adjusted by simply bending or pressing the electrode against the insulator, but this can only be done normally on new spark plugs; when worn, the electrode, as a rule, becomes very fragile and crumbles under rough influence.

In the image below you can see the stages of spark plug wear.

Stages of spark plug wear

If the electrode is intact, you can try to revive the product; to do this, you need to anneal the deposit on the electrode with a gas burner and, after it has softened, remove it with a metal brush. This must be done carefully so as not to damage the fragile structure.

Now let’s figure out how to replace spark plugs on a 16 valve Priora. To do this you will need a spark plug wrench, a screwdriver and a 10mm socket wrench to unscrew the coils.

Everything is done according to the following algorithm:

1. Open the hood and remove the plastic protective cover from the engine;
2. We remove the power wire from the ignition coils and unscrew the bolts that secure them;
3. We pry up the coils with a flat screwdriver and take them out;
4. We take a special key and unscrew the spark plugs. This may not be so easy to do, since high temperatures may cause the shrink thread to stick to the body of the part. Unscrew it carefully so as not to damage the structure, since removing fragments of insulator from the well is an extremely problematic task. If you have a compressor at hand, blow out the shrinkage well to remove dust and contaminants accumulated in it;
5. We check the condition. If it is damaged or extremely worn, we install a new one. We insert the spark plug into the magnetic head of the key and screw it back in. There is no need to make any effort here - the thread should go smoothly, and after the body is held tightly in the seat, you need to tighten the thread with light force;
6. All that remains is to install the coils in place and connect power to them.

Replacing spark plugs on an 8-valve Priora differs from the procedure described above due to their location. In 16-valve engines they are recessed into a well inside the cylinder block, while on 8-valve engines the spark plugs are placed on the surface of the block, so changing them is much easier.

Replacement is carried out as follows:

1. Remove the power wire from the shank;
2. Unscrew using a 21 mm socket wrench;
3. Screw in new ones and connect power.

Now you know which spark plugs are best for Priora and how to replace them. Have a good ride without any breakdowns!

To replace spark plugs on a Lada Priora car, prepare a special socket wrench with a “10” head.

Reviews

Related link:

Which wipers are better to install on Vesta.

Choice

The choice of candles today is quite extensive. But we’ll talk about which ones are used for the VAZ 2110 and what can currently be considered the best choice for your car.

Candles differ from each other mainly in the material from which the electrodes are made.

The service life may increase or decrease depending on the care, conditions of use of the vehicle, and the quality of the fuel being poured.

Platinum candle

VAZ 2110 / 2111 / 2112

In this section of the online store of auto spark plugs for VAZ you can select both iridium and standard spark plugs for your VAZ 2110 / 2111 / 2112 car. You can select spark plugs for various models of VAZ 2110 / 2111 / 2112 cars using this electronic spark plug catalog make it quick and easy!

Select your VAZ 2110 / 2111 / 2112 car model below:

If you do not find your VAZ 2110 / 2111 / 2112 car engine in our lists of spark plugs for VAZ, it only means that we have not yet managed to enter it into our database of auto spark plugs!

There are 90% candles for you!

Send your request via the contact form or call us

(495) 638-5480, (499) 390-390-1

We will definitely try our best to find the spark plugs you want!

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Manufacturers and prices of analogues

On the Lada Priora car, the manufacturer installs spark plugs AU17DVRM (on cars with an 8-valve engine) or A17DVRM (16-valve power unit). These domestically produced parts are quite reliable, but sooner or later their service life ends. This leads to an immediate increase in gasoline consumption, as well as a deterioration in engine performance.

The main symptoms of worn or failing spark plugs include:

• weakening of the spark on the electrodes or its complete disappearance;
• significant loss of engine power;
• dips and jerks in the operation of the power unit;
• the appearance of a thick black coating on the electrodes. In general, in any case of carbon deposits on the spark plugs, it is better to immediately install new parts to eliminate any risks to the engine;
• spark decay pressure drop.

Otherwise, they will not be able to ensure complete combustion of the fuel, and its residues will enter the crankcase, diluting the lubricant. This will lead to failure of the main engine components.

Which spark plugs are better for Priora 16 cl.? For those who do not want to buy factory spark plugs, there is a huge selection of analogues:

• Products from the British. Which spark plugs are better for Priora 16 cl.? For such an engine it is worth purchasing the “Champion” RC9YC.
• Candles from German. They are little popular, but have a high resource. The marking for Priora is 14FR7DU.
• Japanese candles NGK. Perhaps the most popular analogue of factory products. NGK marked BCPR6ES is ideal for the 16-valve Priora.
• "Denso". This is also a Japanese manufacturer. The cost is on par with NGK, and the quality is not inferior either. For Priora you should buy Denso Q20PR-U11.
• "Brisk" (Czech Republic). Another popular spark plug manufacturer. The manufacturer offers products with different heat ratings and number of electrodes. Spark plugs DR15YC-1 are suitable for Priora. The same ones are used on Kalina engines of the first and second generation, with a 16-valve timing mechanism. But judging by the reviews, the products are of low quality - the electrodes are greatly offset from the center, which is unacceptable for such products.

What spark plugs are currently best for VAZ 16 cl.? When choosing, you should give preference to the original - AU17DVRM. By the way, the packaging says “BOSH Group”, but the products were manufactured in Russia. For those who want to use an analogue, NGK candles are suitable. They are distinguished by a good resource and low cost.

Original VAZ products are suitable for “tens”: the name of the position you need may contain the word “injector” or its abbreviation. Catalog number: 21120-3707010-86. The price will be about 300 rubles per set.

Conclusion

The stability of engine operation largely depends on the timely replacement of igniters, as well as the quality of their manufacture.

The best spark plugs for Lada Vesta:

1. NGK: resource – 3.3 points, fuel economy – 4.1 points. Optimal price/quality ratio.
2. Finwhale: resource – 3.2 points, fuel economy – 4.0 points. Wide range for various modifications of power units.
3. Beru: American-German concern, resource – 3.0 points, fuel economy – 3.9 points.
4. Brisk: a Czech brand that produces igniters in the budget and premium segments. Resource – 3.0 points, fuel economy – 3.9 points.
5. Denso: a European brand specializing in the budget segment of products. Resource – 3.0 points, fuel economy – 3.8 points.
6. Torch: a Chinese brand focused on cars in the budget and mid-price segment. Resource – 3.0 points, fuel economy – 3.7 points.

Basic faults

The time has come to explain why it is worth carrying a certain supply of candles with you for the Priora. Don’t even store them in the garage or at home, but put them under the trunk lid so you don’t have to worry about anything when a critical situation occurs. When the “spark” doesn’t go after a hard day at work, you definitely won’t be eager to walk to the nearest auto parts store.

You can determine the malfunction of the Priora spark plugs by the following signs:

• Starting the engine is difficult (that is, the starter rotates, the fuel-air mixture is supplied inside the chamber, but there is still no spark; the engine will start if you turn the starter for a long time).
• Fuel consumption has increased (there may be several reasons for this phenomenon, but if at least one more reason from the list appears, it is worth inspecting the ignition unit).
• The proportion of carbon monoxide coming out of the exhaust system has increased.
• The engine power has decreased (this is especially noticeable during acceleration - there is no usual “traction” and good acceleration).
• The engine is misfiring, which means one of the cylinders is not working - simply because “its” spark plug did not give a spark, the mixture did not ignite.
• Usually the spark plug is changed every 15,000 km (for many this is one year of driving with their favorite car), but they can be “flooded”. This is a more serious problem that will take a little longer to deal with.

Comparison of A17DVRM analogues produced under different brands

One of the online publications conducted a comparative test of spark plugs intended for the VAZ-21116 engine. We tested analogues of the A17DVRM spark plug, supplied by the following companies:

• APS, Bosch, Brisk – Russian production;
• Bosch Platinum, Beru, Finwhale – Germany;
• NGK, Denso – Japan;
• Eyquem - France;
• Champion – “made in the European Union”.

Note that testing was carried out on an 8-valve VAZ-2111 engine (injectors, lambda probe, without catalyst, “January-5.1”). All measurements were carried out on a bench.

Selection of spark plugs for 8-valve engine 21116

The results of the tests performed are presented in the photo in the form of graphs. As you can see, it still makes sense to buy imports: using spark plugs from Bosch, as well as products from the Finwhale, Brisk and Champion brands will provide a noticeable increase in power. If you want to save on fuel, then ask for NGK products in stores. Additional comments are unnecessary here.

Forced engines are characterized by an increased compression value, and VAZ engines are no exception. By installing Brisk spark plugs, you don't have to worry about sparking at high pressure. But note that NGK candles have similar characteristics. It turns out that NGK products should be considered the optimal choice, however, recently counterfeits of this brand have appeared. And the “remake”, it seems, is now coming from France, as described in the film.

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Types of spark plugs: iridium and regular

Spark plugs are divided into multi-electrode and two-electrode. For multi-electrode spark plugs, one is located in the middle and the rest are located at the edges. It is believed that such spark plugs last longer than two-electrode spark plugs. They have only two electrodes - one in the center, the other on the side. Spark plugs are also divided into regular, iridium or platinum.

Iridium spark plugs for Priora

Another characteristic of candles is their potassium number. The heat number is the average pressure at which it is easier to heat candles during testing. So, they are distinguished by types: cold type (heat number above 20), medium type (17-20), universal type (11-20), hot (11-14).

The first iridium spark plugs for cars were produced by Denso. Today they claim that such parts, unlike conventional ones, have a longer service life. We installed such parts on the Priora, but did not notice the difference - perhaps this is just a marketing ploy. We don’t think that the Priora is anything special and the difference will be noticeable on other cars.

Denso even produces special models for AvtoVAZ. The electrodes are coated with a lubricant mixture, which increases their gas impermeability, while the temperature in the ignition unit remains optimal - premature or late ignition is excluded. The side electrode is designed in such a way that it allows ignition to be optimized; in this case, even a lean mixture will be ignited.

You can install iridium spark plugs on the Lada Priora, the advantage of which is clear - they need to be changed much less often. But the service life of these elements will be significantly lower than that declared by the manufacturer. The fault lies not in the malfunction of the car - the quality of gasoline leaves much to be desired.

Valve replacement of ignition elements for Lada Priora 16 valves is real. Manufacturers producing analogues for this VAZ car produce similar copies from iridium. But don’t rush to rejoice: even if you are promised that the spark plugs will last about one hundred thousand kilometers, on Russian roads this is unlikely to be true.

However, take care to ensure that the cylinder head gasket is always completely sealed against leaking oil. If oil gets on your iridium spark plugs, your expensive purchase will be rendered useless.

Classification

You need to approach your choice as responsibly as possible. It is worth deciding which type of spark plug is best suited for the car. So, these elements have their own classification according to:

• Number of electrodes: two- and multi-electrode. The first type consists of several elements. These are the side and central electrodes. These are installed standard on Priora. As for the second type, they have one central and three side electrodes. 14fr7du. What spark plugs are currently best for VAZ 16 cl.? As reviews note, these candles have a longer service life and are more reliable.
• Type of material. Often spark plugs are equipped with copper electrodes. What are the best spark plugs for Priora? Judging by the reviews, they have a short resource - up to 30 thousand kilometers. But recently more “tenacious” iridium analogues have appeared on the market. Their resource is about 60 thousand. By the way, such candles have a slightly smaller diameter of the central electrode. If on copper it is 2.5 millimeters, then on iridium it is 0.7 millimeters.
• Thread diameter. When purchasing, check with the seller for which engine you need spark plugs. Thus, 16-valve valves are equipped with elements with a smaller head size and thread diameter. Spark plugs from an 8-valve engine simply won’t work in a 16v Priora.
• Heat number. This parameter means the pressure at which it is easier to heat the candle. Candles for Priora 16 cl: which ones are better to install. There is a cold and a hot type. The glow number of these candles is 20 and higher for the first and 11-14 for the second. Which spark plugs are better for Priora 16 cl.? There is no clear answer to this question. According to Auto-VAZ recommendations, spark plugs for 16 valve Priora are which spark plugs are best for 16. But there are also universal options. In this case, the glow number is from 11 to 20. These are the spark plugs that many motorists use. They behave well both in summer and in cold weather.

What does the manufacturer recommend?

The manufacturer recommends installing spark plugs Brisk “SUPER” DR15YC-1, Brisk DR17YC-1, Bosch FR7DCU, as well as AU17DVRM or AU15DVRM. These spark plugs are the most popular and are recommended by the factory. Their resource is designed for 30 thousand km, after which it is better to replace the spark plugs.

• JSC ZAZS, Russia A17DVRM
• BERU, Germany 14R-7DU
• CHAMPION, England RN9YC
• NGK, Japan BPR6ES
• DENSO, Japan W20EPR
• BRISK, Czech Republic LR15YC
• BOSCH, Germany WR7DC

• JSC ZAZS, Russia AU17DVRM
• BERU, Germany 14FR-7DU
• CHAMPION, England RC9YC
• NGK, Japan BCPR6ES
• DENSO, Japan Q20PR-U11
• BRISK, Czech Republic DR15YC
• BOSCH, Germany FR7DCU

Why iridium?

Such a wide selection of candles pampers car enthusiasts only for 20-25 years. Before this, the choice was much poorer.

Platinum candles were already on sale, but one could only dream of decent quality or reliability.

The best manufacturers in the world did everything possible to improve the quality of the product and achieve their goals, namely ensuring maximum reliability, long service life and reducing energy consumption.

In 1994, NGK specialists finally managed to create high-quality spark plugs using a special material - iridium.

What are its advantages? — It has a maximum melting point (in this indicator, iridium surpasses even platinum), excellent anti-corrosion properties and high quality.

The developers managed to make the thickness of the electrode minimal. Moreover, it was the tip that was made of rare metal.

In terms of its hardness, iridium occupies one of the leading positions. Many believe that the metal is based on the material of a meteorite that arrived on our planet many millions of years ago. Hence its hardness indicators.

Another advantage of iridium is its ability to withstand high temperatures. Metal can only be melted when heated to 2,500 degrees Celsius.

Iridium has been actively used in the industrial sector (since the 20s of the last century). But in practice it is not used in its pure form, but in the form of a special alloy.

This is not surprising, because without the addition of metals, iridium is extremely fragile and useless in production. That is why in practice only alloys are used.

Top best models for 8 valve engine

LATIN BRISK 1400 DR15YP-N

A high-quality model that will impress with its reliability and long service life. If there are no problems with the engine, the product will last a long time and will not deteriorate. The dimensions are standard and will easily fit the selected vehicle. Engine type: petrol. The tip is coated with platinum, which is a good result. The manufacturer recommends replacing spark plugs every 90 thousand km. Thread – M14x1.25.

The average cost is 300 rubles.

PLATIN BRISK 1400 DR15YP-N

Advantages:

• Value for money;
• Long service life;
• Efficiency;
• High quality manufacturing;
• Replacement frequency;
• Reliability.

Flaws:

• Not found.

BERU Z16

An effective German model that is installed on various cars. The product is characterized by low maintenance and reliability. Durable materials were used for manufacturing. All sizes are standard so installation will not take time. The price for the product is also reasonable, there are no inflated prices.

The average cost is 200 rubles.

BERU Z16

Advantages:

• Long service life with proper care;
• Reliability and ease of installation;
• True to size;
• Manufactured using German technology.

Flaws:

• Not found.

BOSCH 0242232502

If a person is looking for a product that will serve him for a long time and will not deteriorate from frequent use, he should pay attention to this model. In appearance, there is nothing remarkable here, but the main thing is what materials were used in production. Here, the manufacturer has equipped the spark plug with only the best components that will not be damaged for a long time and guarantee complete safety to the driver.

The average price is 270 rubles.

BOSCH 0242232502

Advantages:

• Value for money;
• Popular German company;
• Reliability;
• Durability;
• Easy installation;
• Suitable for Lada Granta.

Flaws:

• Not found.

CHAMPION OE039T10

A popular product that is popular with many motorists. However, the majority leave only positive reviews. The product features a flat saddle. To produce this option, only high-quality materials were used that are resistant to wear. Thread size – M14x1.25. The distance between the electrodes is 1 mm. In addition, another feature of this design is its low cost, which makes it possible for every car owner to use the product.

The average cost is 150-170 rubles.

CHAMPION OE039T10

Advantages:

• High quality manufacturing;
• Affordable price;
• Easy installation;
• Good material;
• Efficiency.

Flaws:

• Not detected.

Installing new ones

To replace spark plugs, you must have at your disposal a special spark plug wrench with a rubber bushing and a cardan, which makes it possible to remove parts from wells of any depth. If you have a tool, all work is performed in a few simple steps:

• remove the terminals from the ignition coil and carefully remove this part;
• We insert a spark plug wrench into the well and first loosen the part, and then unscrew it from the thread. If nothing works on the first try, you can try to repeat the procedure on a hot engine;
• we check the gap between the electrodes and, using the same spark plug wrench, install a new product, tightening it until it stops;
• mount the ignition coil and connect the terminals to it.

To replace spark plugs on a Priora, you will also need to carefully dismantle and then reinstall the decorative panel covering the engine. After completing the work, it is recommended to start the power unit and make sure that it operates stably, without any extraneous sounds or failures. Only after this can you close the hood and go on a trip with new spark plugs.

If the gap is OK, put the spark plug on the tip of the ignition module and lower it into the shaft. Next, use a wrench to tighten it until it stops. There is no need to pull hard. The recommended tightening torque is 25 to 30 Nm. At the next stage, screw the coils and insert the terminals.