Instructions for replacing spark plugs on Lada Largus

When replacement is required

The spark plugs should be replaced in accordance with the vehicle maintenance regulations, that is, every 15 thousand km. These are the requirements when it comes to standard spare parts supplied by the manufacturer. There are many innovative types of these platinum plated or iridium plated parts available in the aftermarket today. In such cases, their service life is much longer.

Spark plugs must be replaced not only as planned or for preventive purposes, but also due to malfunctions. This could be contamination of the skirt with carbon deposits or oil when driving on a cold engine, or coking of the thermal cone caused by increased oil consumption. If replacement is not done in a timely manner, the electrodes may burn out, resulting in an increase in the gap and an insulation breakdown. One of the causes of problems may be a manufacturing defect, leading to the passage of gases through the insulator and housing. If these faults are present, the car does not start well or the engine begins to stall. This is unacceptable for further operation of the car - you need to find the damaged spark plug and replace it.

Replacing spark plugs on Lada Largus

Car owners, as a rule, replace spark plugs on Lada Largus themselves. This must be done without fail. Otherwise, of course, after a while, you can forget about the correct operation of the engine. The use of high-quality candles will be the key to stable operation of the domestic iron horse.

Wear and breakdown of these consumables will cause failure of the main ignition elements, including: • distributor cover; • coils;

• gas neutralizer.

We can say with all confidence that spark plugs are especially close to the engine cylinders and the processes occurring in them. By looking at the spark plugs, you can easily determine the correct operation of the engine, and also say a lot about the quality and even the composition of gasoline.

Replacing spark plugs in Lada Largus

Timely response and correct identification of engine malfunctions will save you from more serious problems. Candles cannot be considered the cause of all troubles, however, they serve as a kind of indicator of the health of the Lada Largus engine.

Correct assessment of appearance will help diagnose the problem at an early stage. So, even a change in the color of the candle will indicate a possible problem. If the working part of this engine part is gray or yellow, the heart of your car is in order. Sooty spark plugs directly indicate the formation of deposits that appear when the temperature is incorrect or the vacuum is reduced.

And if moisture appears on the spark plugs, it is necessary to check the integrity of the gasket and head ring. Such changes serve as a reason for a more thorough inspection of the spark plugs, the operation of which may be disrupted for the following reasons: • accumulation of various deposits; • rust; • damage or complete destruction of the insulator; • excess gasoline consumption;

These are the main reasons that directly indicate the need for urgent replacement of spark plugs in the 16-valve Lada Largus engine. Only regular inspection of these components will help to avoid many troubles caused by problems in the ignition system.

Step-by-step instruction

Stage one. First, we remove all spark plugs without exception, since they have already exhausted their service life. As a rule, a complete replacement is carried out every 30 thousand km. car mileage This is the optimal indicator for domestic cars.

Stage two. The removal areas must be cleaned to prevent dirt from getting on the cylinder walls. It is best to clean using pressurized air, which blows out all foreign particles in the areas where new spark plugs are installed. As a last resort, you can use the old-fashioned method, which uses regular alcohol. Wipe the surface of the cylinders thoroughly and you can continue working.

Stage three. We remove only de-energized spark plugs. First, disconnect the wire by disconnecting the cap, and then unscrew the spark plug.

Stage five. Installing new spark plugs on the Lada Largus is simple and understandable even for an inexperienced driver. To simplify the installation process as much as possible, you can use a special lubricant for these purposes. Now we simply put the new part in place and easily turn it counterclockwise, and after 2-3 turns in the direction of travel.

Stage six. Be sure to wear a cap that will reliably protect this part from the harmful effects of various external factors.

Often the caps are made of plastic and come with the spark plug. Simply lower the spark plug guard until it clicks.

Spark plugs on the 8-valve Lada Largus engine, as well as on the 16-valve engine, can be called engine health indicators. Regular inspection and timely replacement can prevent more serious and costly engine breakdowns. All car owners will be interested in watching a video on how to properly replace spark plugs in a Lada Largus.

How to replace spark plugs in a 16-valve version?

The procedure should be performed on a cooled LADA Largus engine.

Process:

• We disconnect the wire blocks from all 4 coils by carefully pressing the latches.
• We take the key “8” and unscrew the bolt that holds the coil body to the cylinder head cover. We do this on all coils.
• We remove the coils along with the tips from the wells, carefully pulling them off the spark plugs.
• We unscrew each of the spark plugs using the specified size 16 wrench.
• We install new spark plugs one by one, observing the required tightening torque of 25-30 Nm. This avoids difficulties with unscrewing if the spark plugs need to be replaced.
• We put the coils on and tighten the bolts that secure them.
• We connect the electrical blocks in the reverse order.

Having completed the installation, start the engine and observe the stability of its operation.

What spark plugs are installed on Largus

A note about what spark plugs are installed on the 8-valve Largus from the factory; what spark plugs the manufacturer recommends; where you can buy original spark plugs at an affordable price.

The first 15 thousand on my Gus are long gone. And this is the mileage at which the car undergoes its first maintenance. At the same time, one of the mandatory service work was the replacement of spark plugs. The procedure is not complicated and took me no more than 20 minutes.

But before that the question arose: “What replacement candles should I buy?” Having opened the hood and unscrewing one of the spark plugs, I found out that my 8 valve valve has two-pin spark plugs Eyquem (RFC58LZ2E), made in France. The gap between the electrodes is 0.95 mm (± 0.05 mm). The country of manufacture “Made in France” is indicated on the case.

Here is a photo of one of them:

Where can I buy?

• Article 224013682R — spark plug for 8 cells Lada Largus (7700500168), 2 electrodes, Romania, original
• Article 224018651R — spark plug for 16 cl Lada Largus (replacement 7700500155), 1 electrode, France, original

I ordered according to the first article, i.e. 224013682R. The purchased candles corresponded to the original ones, with the only difference being that the country of manufacture was Russia. Information about this is indicated on the packaging. On the body of the spark plug itself are indicated: letter markings of the Renault company, alphanumeric code. Country not specified.

This is what the packaging of domestic candles 224013682R looks like:

And here is the candle itself:

I installed these spark plugs after the first maintenance. I also continue to use them at every scheduled replacement. There are already four technical inspections under my belt. The mileage has exceeded 60 thousand. The flight is normal.

The only question I have left is, what kind of spark plugs come under article number 7700500168 (7700500155)? Maybe just the original French ones? I'll try to buy one of these someday and find out what kind of animal it is.

I found this out the next time I replaced the spark plugs. 7700500168 are two-pin Made in France. Bought at a price of 179 rubles. a piece. Set of four pieces—RUB 719.

Factory recommendations

If we contact the manufacturer directly, he redirects us to the operating manual and service book of the car, where not a word is said about spark plugs. To top it off, he sends it to the dealer.

If you look at the Largus manual, then for the K7J and K7M engines Champion RYCLC87 and SAGEM RFN58LZ spark plugs are recommended, and without division into 8-cl and 16-cl.

Analogues for 8 cells

• 6962 NGK - from 120 rub.
• 8671004070 Motrio (Renault) - from 170 rub.
• 242235668 — Bosch 190 rub.
• OE026T10 Champion - from 200 rub.
• K20TXR Denso — 290 rub.
• 30530 Asam — 400 rub.

Analogues for 16 cells

• 8671004086 Motrio (Renault) from 160 rub.
• OE033T10 Champion
• 242235666 Bosch from 140 rub.

Happy shopping everyone!

Motors

Gradually, the “French” were replaced by the VAZ-11189 (8 valves, 87 hp) and VAZ-21129 (16 valves, 106 hp) engines. The cylinder block traces its history back to engine 21083. These engines are more powerful and more economical than French ones, but less reliable. The VAZ-21129 is equipped with hydraulic compensators; on some examples they knock loudly when warming up. Floating speeds and tripping can be caused by various reasons - from sensor glitches and deformation of the throttle valve ring to spark plug failure or clogged injectors. Burnout of valves happens, but is not a system problem. In general, the motors are well adapted to repair and last a long time.

All engines have a weak link - the thermostat, whose failures lead to “underheating” or overheating.

Phased replacement

Step one

Initially, it is necessary to remove the used parts from the power unit. If we take into account that modern spark plugs have a fairly long charge life, then they are replaced only as a result of irreversible failure. Although for the Lada Largus, as for most domestic vehicles, it is better to replace them every 30,000 km.

Step two

To prevent contamination of the cylinder walls, the removal site is cleaned in a certain way. For this purpose, compressed air can be used, which is blown under pressure to the future installation sites. If this is not possible, then the surface of the cylinders is simply wiped with alcohol.

Step three

To remove the spark plug from the engine, you must first turn it off. Here you should find the wire that is connected to the part to be removed. You cannot pull the wire, as this can damage it, so disconnection is carried out by pulling out its cap.

Step four

After disconnecting the wire, you should proceed to the direct removal of this part. To do this, you will need a socket wrench to unscrew the spark plug. It rotates counterclockwise. If this procedure takes place with force, then you should use a universal joint that changes the angle of unscrewing of the spare part. Here you should not forget to check the condition of the thread and, if necessary, wipe it.

Step five

The installation procedure for new elements is quite simple even for an inexperienced car enthusiast. Before screwing in the spark plug, apply a special product to it to simplify this process. The part is inserted into the socket and slightly rotated counterclockwise. After several revolutions, screwing continues along its course.

Step six

To protect the device from external factors, a cap is placed on it. If it comes included and is made of plastic, then you can put it on very simply - move it down until it clicks. If it is a rubber element, then before installation the surface of the spark plug is treated with a special lubricant that does not conduct electric current.

Types of engines and nuances of replacement

The technology for replacing spark plugs on a Renault Duster depends on the modification of the power plant. On pre-restyling versions, two types of gasoline power plants were used - 1.6-liter (K4M) and 2.0-liter (F4R).

On restyled crossovers, the K4M engine was replaced with a newer one - H4M, but the F4R was not changed.

The replacement procedure on the K4M and F4R units is almost identical, with the exception of one small nuance regarding the 2.0-liter engine. But on the H4M engine the algorithm is different, and significantly so.

2.0-liter engine (F4R)

Next, we will consider the complete algorithm for replacing spark plugs on a 2-liter F4R unit.

Equipment to perform the procedure will require:

• Set of heads with extensions and cranks;
• Spark plug head 16 (deep and preferably equipped with a rubber seal or magnet to hold the spark plugs);
• A compressor with a blowing gun (instead, you can use a can of compressed air used when repairing office equipment);
• A set of new spark plugs.

The operation is performed on a cold engine.

• Disconnect the negative terminal from the battery;
• We disconnect the chips with wiring from the coils (to remove, you need to press the latch);

• Using a blow gun or a can of compressed air, blow off dust from the collector and adjacent surfaces;
  Read also:  Replacing the steering gear on a VAZ 2106 car
• Using a 8-mm socket with an extension and a knob, unscrew the bolts securing the coils and remove the latter;

• On the 4th cylinder, in addition to the coil, the bolt also holds the solenoid valve of the variable valve timing system. To remove the coil on this cylinder, after unscrewing the fasteners, you need to turn the indicated valve around the axis so that the eyelet for its fixation does not interfere with removal;
• We blow out the spark plug wells to blow out accumulated dust from them;
• Use a candle head to turn off the candles. If the tool has a magnet or rubber band, then we use it to remove it. If the head does not hold the spark plugs, then the ignition coil will help to get them out (after unscrewing the element, put the coil on it and take it out);

• We install new spark plugs and tighten them with a force of 25 Nm. If there is no dynamic key, then we proceed as follows - tighten it by hand until it stops, then turn it with the knob until it stops, applying medium force to it (you can’t pull too much, since you can break the threads in the head);
• We put the coils in place, fix them with bolts and connect the wiring.

As you can see, the operation of replacing spark plugs on a Duster with an F4R engine is not difficult; the main thing is to carefully blow out all debris and dust so that they do not get into the spark plug wells, and then into the cylinders.

Price for repair and maintenance of Lada Largus

We work for you. We do everything to ensure that you receive high-quality and professional repairs for your car. Our prices will pleasantly surprise you; we work at a competitive price.

Which ones to choose?

The Lada Largus has power units with 8 valves and 16 valves. The engines allow the installation of non-original spark plugs, but their parameters must fully comply with factory requirements, which include external characteristics:

• the leg must have an M14 thread;
• the length of the main part is 19 mm;
• The installation parameter must correspond to the 16th dimension of the socket (spark) wrench.

It is possible to use elements with one or more lateral electrodes. Manufacturers use alloys of chromium, iridium, nickel or platinum as materials in the manufacture of these consumable components.

If we consider analogues, it is recommended to opt for the “Motrio 224018651R” products. These candles are quite rare and cannot be found in some cities. Therefore, as a replacement, you can take a closer look at models such as:

• “SAGEM RFN58LZ” or “BOSCH FR 7 LDC+ 0242235668”;
• "CHAMPION RC87YCL" or "DENSO K20TTK20TT#4".

These consumables can be installed on 16-valve versions of 1.6-liter engines (K4M).

In this “spark” issue, the difference between LADA Largus engines with 16 valves and 8 valves is that in the first case, a separate coil “works” with each spark plug (there are 4 of them), and in the second case, all 4 spark plugs “serve” one coil. We also note the differences between the candles of the two types of units:

• type of products;
• sizes;
• gap size;
• heat number.

When to change spark plugs on Lada Largus?

According to the LADA Largus maintenance regulations, spark plugs are changed every 30 thousand km. But, as most drivers note, the actual service life of original spark plugs often approaches the 50 thousand km mark. If iridium spark plugs are installed, they usually last up to 100 - 120 thousand km.

Top 1. NGK BPR6ES-11

Rating (2021): 4.67 9 reviews from resources taken into account: OtzovikBest selling

The spark plugs are applicable to a large number of popular car models. The combination of characteristics and relatively low cost makes them one of the best-selling, including for the Lada Largus.

• Characteristics Average price: 259 rub.
• Country: Japan
• Center electrode material: nickel
• Heat number: 6
• Gap, mm: 1.1
• Resource, km: 30000

Japanese brand spark plugs made in France. One of the most popular for the Largus 8-valve injector. Excellent performance characteristics of the spark plugs ensure stable engine operation in any temperature conditions. According to reviews from car owners, when replacing used spark plugs with new NGK brand ones, the car's gas mileage decreases, it becomes easier to start and has smooth, stable idle. Some note the high price of these candles, comparing them with cheap analogues. But they completely exhaust their resource of 30,000 km. And under normal vehicle operating conditions and high-quality fuel, some owners have NGK spark plugs that last 50,000-60,000 km.

Advantages and disadvantages

• Confident engine start
• High quality build
• Complete resource depletion

• There are fakes

Instructions for replacing spark plugs on Lada Largus

The spark plug ignites the air-fuel mixture in the combustion chamber at the end of the piston compression cycle, transferring engine power to the vehicle's transmission. Without spark plugs, a gasoline engine cannot operate. The idea of ​​igniting the air-fuel mixture by means of a spark belongs to the German engineer Robert Bosch. It was implemented by him in 1902 using Karl Benz engines. Since then, the design of this device has remained virtually unchanged. Its main parts: central electrode – 1, insulator – 2, housing – 3, side electrode – 4, A – gap between the electrodes.

Schematic illustration of a spark plug.

When to change spark plugs, which ones to install

Spark plugs for Largus 1.6 differ from each other only depending on how many valves the engine has. On cars with 8-valve engines (K7M, VAZ-11189), the manufacturer installs spark plugs under article number 7700500168. They have a regular nickel central electrode and two side electrodes. The same candles can be found directly from the manufacturer EYQUEM under the article number RFC58LZ2E. An analogue from a Russian manufacturer has article number 224013682R. These models are no different from each other and are interchangeable.

On Largus with a 16-valve K4M engine, spark plugs are installed under article number 7700500155. Unlike the previous spare part, these spark plugs have one side electrode, but they are nickel. The French manufacturer EYQUEM has the article number RFN58LZ. The Russian analogue has article number 224018651R.

On a Largus with a 16-valve engine, you can also install spark plugs with 2 side electrodes from an 8-valve engine, but not vice versa. On 8-valve valves, only 2-pin ones are installed. As drivers note, spark plugs with 2 side electrodes slightly improve engine performance by reducing vibration.

Read more about the sizes of original candles in the table below.

Article number Engine Thread / thread length, mm Key size Gap, mm Heat rating * Material of the central electrode

*nomenclature from NGK

7700500168

7700500155

The most commonly used substitutes are presented below.

ManufacturerArticlePrice, rub (per 1 piece)

Which ones to choose

The Lada Largus has power units with 8 valves and 16 valves. The engines allow the installation of non-original spark plugs, but their parameters must fully comply with factory requirements, which include external characteristics:

• the leg must have an M14 thread;
• the length of the main part is 19 mm;
• The installation parameter must correspond to the 16th dimension of the socket (spark) wrench.

It is possible to use elements with one or more lateral electrodes. Manufacturers use alloys of chromium, iridium, nickel or platinum as materials in the manufacture of these consumable components.

The LADA Largus version with a 16-valve engine is perfectly suited to related Renault models with the original code “7700500155”.

If we consider analogues, it is recommended to opt for the “Motrio 224018651R” products. These candles are quite rare and cannot be found in some cities. Therefore, as a replacement, you can take a closer look at models such as:

• “SAGEM RFN58LZ” or “BOSCH FR 7 LDC+ 0242235668”;
• "CHAMPION RC87YCL" or "DENSO K20TTK20TT#4".

These consumables can be installed on 16-valve versions of 1.6-liter engines (K4M).

For 8-valve options, it is also recommended to use original products, and in their absence, analogues from manufacturers designated a little earlier.

In this “spark” issue, the difference between LADA Largus engines with 16 valves and 8 valves is that in the first case, a separate coil “works” with each spark plug (there are 4 of them), and in the second case, all 4 spark plugs “serve” one coil. We also note the differences between the candles of the two types of units:

• type of products;
• sizes;
• gap size;
• heat number.

Factory recommendations

If we contact the manufacturer directly, he redirects us to the operating manual and service book of the car, where not a word is said about spark plugs. To top it off, he sends it to the dealer.

If you look at the Largus manual, then for the K7J and K7M engines Champion RYCLC87 and SAGEM RFN58LZ spark plugs are recommended, and without division into 8-cl and 16-cl.

When to change

According to the LADA Largus maintenance regulations, spark plugs are changed every 30 thousand km. But, as most drivers note, the actual service life of original spark plugs often approaches the 50 thousand km mark. If iridium spark plugs are installed, they usually last up to 100 - 120 thousand km.

Top 3. BRISK DR15YC-1

Rating (2021): 4.51 22 reviews taken into account from resources: Otzovik, AutodocThe most accessible

These spark plugs have a minimal cost, but provide stable ignition of the fuel-air mixture throughout the entire declared service life.

• Characteristics Average price: 92 rub.
• Country: Czech Republic
• Center electrode material: nickel
• Heat number: 15
• Gap, mm: 1.0
• Resource, km: 30000

These spark plugs are ideal for Lada Largus with a 16-valve engine. Car owners note that even in severe frost they have no problems starting the engine. The engine with them demonstrates stable operation and idle speed without failures. Of course, all this happens with timely replacement of spark plugs. Some drivers, especially residents of northern regions, take precautions before the onset of cold weather. They change spark plugs without waiting for 30,000 km. Some do this for 15,000 km, others for 20,000 km. However, the cost of such a kit for a car allows replacement more often than recommended by the manufacturer. And do it without burdening your budget.

Advantages and disadvantages

• Stable spark
• High quality build
• Low price

• Short service life

Replacing spark plugs on Lada-Largus with 16 and 8 valves

Car spark plugs are not just a consumable item. The correct choice, their condition and cost will determine the driving behavior of the vehicle, maintenance costs and comfort. Spark plugs largely influence the speed, performance and dynamic parameters of the car, allowing it to drive smoothly. Spark plugs are one of the parts of the gasoline engine system and are needed to create an electrical charge. They come under the influence of voltage passing between the electrodes, resulting in a spark. Further, because of it, the fuel poured into the system ignites, which allows the car to drive.

Problems with spark plugs can cause a lot of trouble and trouble for the driver. The most dangerous breakdowns include the following:

• Poor start, especially at low temperatures;
• Unstable engine operation when idling, at low and medium speeds;
• Loss of power, poor vehicle acceleration dynamics;
• Increased fuel consumption.

Looking at the problems that arise due to broken spark plugs, you can understand that this is not a simple consumable, but an important component of the car, which requires regular diagnostics and maintenance.

Which ones to choose?

The Lada Largus has power units with 8 valves and 16 valves. The engines allow the installation of non-original spark plugs, but their parameters must fully comply with factory requirements, which include external characteristics:

• the leg must have an M14 thread;
• the length of the main part is 19 mm;
• The installation parameter must correspond to the 16th dimension of the socket (spark) wrench.

It is possible to use elements with one or more lateral electrodes. Manufacturers use alloys of chromium, iridium, nickel or platinum as materials in the manufacture of these consumable components.

If we consider analogues, it is recommended to opt for the “Motrio 224018651R” products. These candles are quite rare and cannot be found in some cities. Therefore, as a replacement, you can take a closer look at models such as:

• “SAGEM RFN58LZ” or “BOSCH FR 7 LDC+ 0242235668”;
• "CHAMPION RC87YCL" or "DENSO K20TTK20TT#4".

These consumables can be installed on 16-valve versions of 1.6-liter engines (K4M).

In this “spark” issue, the difference between LADA Largus engines with 16 valves and 8 valves is that in the first case, a separate coil “works” with each spark plug (there are 4 of them), and in the second case, all 4 spark plugs “serve” one coil. We also note the differences between the candles of the two types of units:

• type of products;
• sizes;
• gap size;
• heat number.

2271-3-8-03-05

...and take it out of the spark plug well...and take it out of the spark plug well.

Install the new spark plug in the reverse order.

When screwing in a spark plug, it is necessary to rotate the spark plug wrench or extension with the head by hand, and not with a wrench or ratchet, to avoid damaging the threads of the spark plug hole in the cylinder head.

If the spark plug does not follow the thread, strong resistance to rotation will be felt. In this case, it is necessary to completely unscrew the spark plug and, after cleaning the threads, re-tighten it. Finally tighten the spark plug to a torque of 25–30 Nm.

Attention! Over-tightening the spark plugs can damage the threads in the spark plug holes in the cylinder head.

We replace the remaining spark plugs in the same way.

Which ones to choose?

The Lada Largus has power units with 8 valves and 16 valves. The engines allow the installation of non-original spark plugs, but their parameters must fully comply with factory requirements, which include external characteristics:

• the leg must have an M14 thread;
• the length of the main part is 19 mm;
• The installation parameter must correspond to the 16th dimension of the socket (spark) wrench.

It is possible to use elements with one or more lateral electrodes. Manufacturers use alloys of chromium, iridium, nickel or platinum as materials in the manufacture of these consumable components.

If we consider analogues, it is recommended to opt for the “Motrio 224018651R” products. These candles are quite rare and cannot be found in some cities. Therefore, as a replacement, you can take a closer look at models such as:

• “SAGEM RFN58LZ” or “BOSCH FR 7 LDC+ 0242235668”;
• "CHAMPION RC87YCL" or "DENSO K20TTK20TT#4".

These consumables can be installed on 16-valve versions of 1.6-liter engines (K4M).

In this “spark” issue, the difference between LADA Largus engines with 16 valves and 8 valves is that in the first case, a separate coil “works” with each spark plug (there are 4 of them), and in the second case, all 4 spark plugs “serve” one coil. We also note the differences between the candles of the two types of units:

• type of products;
• sizes;
• gap size;
• heat number.

Top CHAMPION OE063T10

Rating (2021): 4.25 Reliable and efficient

Inexpensive spark plugs with performance characteristics that guarantee reliable operation of the Largus engine and fuel economy.

• Characteristics Average price: 223 rub.
• Country: Italy
• Center electrode material: nickel
• Heat number: 10
• Gap, mm: 1.0
• Resource, km: 30000

Like other representatives of our rating, these spark plugs work flawlessly in both summer and winter. Some cars leave the assembly line with them and consistently drive 30,000 km before the planned replacement. Owners of Lada Largus notice that the new spark plugs start the engine perfectly, which even idles without failure. Gasoline consumption is reduced by up to 10%. However, towards the end of the spark plugs' life, their effectiveness in relation to the engine decreases slightly. Few people leave them running longer than the recommended mileage, because the engine loses its power, which means gasoline consumption increases noticeably. Although this is observed when using other candle models beyond the deadline.

Advantages and disadvantages

• Reasonable price
• Reliable build
• Standard resource

• Ineffective after the resource has expired