Renault Logan - this budget car is considered by many to be the standard of simplicity, reliability and cost of operation. But it is these qualities that are decisive when buying a car in this segment. So what are the technical specifications of the model? Do they fully meet the requirements of the clients of car dealerships? (See also the general ones on our website).

Engines

Logan has a pair of powertrains. These are 1.6-liter naturally aspirated engines with no direct injection or turbocharging. It is noticeable that the designers proceeded from the principle of maximum simplicity and reliability. It is noteworthy that in the Old World, both of these engines have already been sent "to rest", and their place has been taken by new engines with a volume of 0.9 liters and 1.2 liters.

82 l. With.

This is a 1.6-liter power unit of the K7M series, in-line layout and with mediocre tech. data. It is equipped with 4 cylinders and 8 valves, distributed fuel injection, equipped with an electronic control system, and one camshaft. The cylinder diameter is 79.5 mm, with a piston stroke rate of 80.5 mm. The compression ratio in such an engine is 9.5 units. He does not have a timing chain - only a belt.

This arrangement allows the power unit to develop a capacity of 82 liters. sec., which can be obtained in the upper range - at 5000 rpm. But the torque is not bad - its 134 "newtons" of thrust are available in the running range itself - at 2,800 rpm.

With similar technical characteristics, the engine accelerates Renault to a hundred in 11.9 seconds. Of course, the indicator is not the best, but bearable. At the same time, the maximum speed reaches 172 km / h. Consumption is quite high - 9.8 liters in the city.

102 l. With.

This K4M series engine also has a displacement of 1.6 liters. The main difference, which is the reason for the higher returns, is the presence of 2 camshafts in the engine design, as well as a twice as many valves - 16 units instead of 8. Otherwise, its design repeats the previous version - in-line layout, 4 cylinders and electronically controlled distributed fuel injection. The drive also uses a traditional belt.

The compression ratio is slightly higher here - already 9.8 units. On the other hand, the bore and stroke figures remained unchanged - 79.5 mm and 80.5 mm, respectively.

Thanks to the structural changes made, the engineers managed to significantly increase the power - up to 102 horses, although this had to be paid for by increasing the peak to 5,750 rpm. And the thrust has not grown so significantly - up to 145 Nm of torque, and its peak has risen to 3,750 rpm.

This made it possible to significantly improve the dynamic characteristics of Renault, bringing the acceleration to hundreds to 10.5 seconds, and the maximum speed to 180 km / h. Consumption in such conditions (in the city) is 9.4 liters.

Such solutions allowed engineers to achieve almost all goals - to create a simple, reliable and inexpensive unit in operation with acceptable technical specifications. indicators. But with the consumption of fuel, an overlay came out, since the official data does not reflect the real picture. After all, she testified that the appetite is in a traffic jam, and even when there are 3-5 people in the cabin, it easily reaches 11 liters. And this is too much for a 1.6-liter volume! So in a metropolis, even a 50-liter tank is unlikely to be able to provide a rare visit to a gas station.

Checkpoint

The manual transmission, which showed itself very well even on the old Renault Logan, was decided not to be touched by the experts. Its technical characteristics ensure correct engagement of gears, clarity and short stroke, and the gear ratios are very well selected:

1st gear - 3,727 units;
2nd gear - 2,048 units;
III gear - 1,393 units;
IV gear - 1,029 units;
V gear - 0.756 units;
Reverse - 3,545 units.

There were no questions about reliability, as a result of which the designers found this transmission acceptable.

But there is no automatic transmission even in the top-end configuration. Of course, in the city it would be much easier with it, but the consumption in this case would not at all fit into a reasonable framework.

Chassis

The suspension in Logan is the most simple. Her tech. the characteristics are quite ordinary - this is an independent structure on the front axle, equipped with shock-absorbing struts of the McPherson type, as well as a torsion beam and a semi-dependent scheme at the stern. Supplemented with a set of anti-roll bars. Disc brakes only on the front axle, while at the rear, drivers will have to be content with drum brakes, regardless of the configuration. The steering is equipped with a hydraulic amplifier.

This chassis layout is extremely simple and cheap. And the suspension itself, as the experience of the previous generation showed, turned out to be extremely reliable. In addition, it is quite comfortable to move around - not too dense, but not imposing either.

Outcome

As you can see, the technical data of Renault Logan is quite consistent with the declared value. 1.6-liter engines are simple and reliable, the gearbox is clear and time-tested, and the suspension is quite good. Only high fuel consumption frustrates.

Renault Logan provides the buyer with versions with various engines and gearboxes, which, together with a variable configuration, allow you to select a car individually, according to the requirements of each future owner. The most "top-end" version for this sedan is a variation with a 1.6-liter engine with 16 valves. About what technical characteristics such a machine has and what possibilities it provides, read on.

Weight and dimensions

Despite the fact that such a machine is positioned as a trouble-free and reliable family assistant, which, with regular maintenance, can serve faithfully for more than one year. This sedan is compact and cannot carry a large amount of luggage.

Nevertheless, according to those data, the engineers managed to create a fairly small car that has a decent trunk volume and a cabin that is comfortable enough for five people.

One of the most important technical characteristics of Renault Logan is its length: both the volume of the trunk and the comfort of the cabin depend on this parameter. According to the official data, for the car provided, this figure is 4346 mm. In this case, the distance between the extreme points of the side mirrors is 1732 mm, and the maximum height is 1517 mm. At the same time, the ground clearance in the Russian version has been increased to 155 mm, which provides the car with excellent opportunities for overcoming light off-road and suburban tracks.

Renault Logan's weight, according to the list of those characteristics, without passengers and with an empty trunk is 1127kg. If you make the maximum load of the machine, then this parameter can increase to 1545kg. At the same time, the volume of the trunk is quite solid: if you believe the table of technical characteristics, on Renault Logan 1.6 it is 510 liters.

Engines and dynamics

For Renault Logan, a 1.6-liter 16-valve engine is not the only version offered for this car. However, the entire line of motors has similar data and is capable of boasting high efficiency with fairly small working volumes.

So, all three engines have a transverse arrangement in the engine compartment and are four-cylinder naturally aspirated power units that do not have a turbocharger. In this case, the design, depending on the version, includes 8 or 16 valves.

For engines, according to those data, a distributed injection system is provided, which is able to improve the dynamic characteristics of the machine and increase its efficiency. By the way, the regulated fuel for all engines is AI92. However, if you believe the official documentation, the manufacturer allows the bay and 95 gasoline.

The Renault Logan 1.6-liter engine with a 16-valve design, according to those data, is capable of giving the car a maximum 102 horsepower for this model, which is achieved at 5750 rpm. The torque is also maximum here, and on a 16-valve 1.6 engine it is 145 Newton meters: this figure can be reached already at 3750 camshaft revolutions per minute. Acceleration to hundreds, according to the list of technical characteristics, is achieved in just 10.5 seconds. At the same time, the maximum speed reaches a considerable 180 km / h.

Fuel consumption deserves a separate word: despite the sufficiently high power and excellent technical characteristics, the 16-valve 1.6 engine remains quite economical and does not require a lot of fuel, even with dynamic driving.

So, according to passport data, a 16-valve in the city will not consume more than 9.4 liters of gasoline for every 100 kilometers. In the combined cycle, this figure becomes noticeably lower and reaches only 7.1 liters. Outside the city, this figure is expected to be minimal and, according to the manufacturer's assurances, does not exceed 5.8 liters per 100 kilometers.

Summing up

Summing up, it should be noted once again that Renault Logan is currently one of the most inexpensive, reliable and economical cars on the market. This allowed the sedan to achieve extraordinary popularity among buyers and earn an excellent reputation, which continues to grow every year.

Today we will talk about the Renault Logan 2 engine, discuss the pros, cons and features of ICE repair. So, in the new Logan 2, Renault offers three engines for installation:

• 8-valve engine with a volume of 1.6 liters. and power 82 h.p.- model K7M
• 16 valve engine with a volume of 1.6 liters. and power 102 h.p.- model K4M
• new 16 valve 1.6 liter engine. and power 113 h.p. — H4M

Let's consider the pros, cons and maintainability of these engines in more detail.

• Engine model - K7M
• Working volume - 1598 cm3
• Number of cylinders - 4
• Number of valves - 16
• Cylinder diameter - 79.5 mm
• Piston stroke - 80.5 mm
• Power h.p. - 82 at 5000 rpm
• Power kW - 60.5 at 5000 rpm
• Torque - 134 Nm at 2800 rpm
• Compression ratio - 9.5
• Timing drive - belt
• Fuel consumption in the city - 9.8 liters
• Combined fuel consumption - 7.2 liters

Pros of the K7M engine

• and the reliability of the engine design;
• reliability: the confirmed motor resource is more than 400 thousand km;
• universal and maintainable;
• easy to maintain;
• have high torque;
• good "elasticity" of engines is provided, equal to 1.83.

Cons of the K7M engine

• relatively high fuel consumption;
• there is an instability of revolutions when idling;
• there are no hydraulic lifters in the design, therefore, it is necessary to constantly adjust the valves (after 20-30 thousand km);
• there is a possibility of valve bending in case of a sudden breakage of the timing belt;
• crankshaft oil seals often leak;
• low reliability;
• very noisy and prone to vibrations.

Repair of the K7M engine

The video below shows how a typical K7M engine repair is carried out on Logan.

K4M - Renault Logan 1.6 liter engine. 16-valves 102 HP

• Engine model - K4M
• Working volume - 1598 cm3
• Number of cylinders - 4
• Number of valves - 16
• Cylinder diameter - 79.5 mm
• Piston stroke - 80.5 mm
• Power h.p. - 102 at 5750 rpm
• Power kW - 75 at 5750 rpm
• Torque - 145 Nm at 3750 rpm
• Engine power system - electronically controlled multipoint injection
• Compression ratio - 9.8
• Timing drive - belt
• Maximum speed - 180 kilometers per hour
• Acceleration to the first hundred - 10.5 seconds
• Fuel consumption in the city - 9.4 liters
• Combined fuel consumption - 7.1 liters
• Fuel consumption on the highway - 5.8 liters

Pros of the K4M engine

• reliability, practical resource exceeds;
• compliance with environmental standards Euro-4;
• increased power (102 hp);
• low noise and vibration resistance;
• more modern and reliable cooling system.

Compared to 8-valve motors, the K4M 16V is much quieter, vibration-free and has the same resource, but significantly more power and torque.

Cons of the K4M engine

• expensive spare parts;
• "Bend" of the valves when the belt breaks;
• weak "elasticity" of the engine, equal to 1.53, as a result - problems with the acceleration of the car when overtaking.

Repair of the K4M engine

The video below shows how a typical K4M engine repair is carried out on Logan.

H4MK - 1.6 liter Renault Logan engine. 8-valves 113 HP

In 2104, a new 16-valve 1.6-liter engine was installed on the Renault Logan 2 of the Togliatti assembly. Atmospheric engine Н4М(or HR16 according to Nissan classification) has a power of 113 hp. and is also installed on Renault Duster, Captyur, Lada XRay, Nissan Sentra and Nissan Beetle.

It differs from the previous generation K 4M engine (volume 1.6 liters, power 102 hp) by increased torque (152 versus 145 Nm), but the maximum torque is reached at 4000 rpm instead of 3750 rpm. The new Renault Logan 2 engine has a built-in variable valve timing system, and instead of a timing belt, a timing chain finally appeared. In addition, the final drive ratio has been reduced: from 4.07: 1 for Logan and Sandero.

• Engine model - H4M
• Working volume - 1598 cm3
• Number of cylinders - 4
• Number of valves - 16
• Cylinder diameter - 78 mm
• Piston stroke - 83.6 mm
• Power h.p. - 114 at 6000 rpm
• Power kW - 83.8 at 6000 rpm
• Torque - 142 Nm at 4000 rpm
• Engine power system - electronically controlled multipoint injection
• Compression ratio - 10.7
• Timing drive - chain
• Maximum speed - 172 kilometers per hour
• Acceleration to the first hundred - 11.9 seconds
• Fuel consumption in the city - 8.9 liters
• Combined fuel consumption - 6.4 liters
• Fuel consumption on the highway - 5.5 liters

Pluses of the H4M motor

The main advantage of the new motor is improved elasticity and increased traction at low revs. But there is absolutely no increase in dynamics when driving. The maximum speed has increased by only 2 km / h (172 km / h). But the fuel consumption of the new Logan in the combined cycle reduced from 7.1 to 6.4 liters. for 100 km.

Cons of the H4M motor

Sedans and hatchbacks with the new engine will only be offered with a manual transmission. Modifications with a four-speed "automatic" will continue to equip the old K4M engine Spanish production, although the extra power would be better combined with the automatic. It would be logical to appear with a new motor and variator, like the Kaptyur crossover, but so far this is not even in the plans.

H4M engine repair

Applicability on cars

The budget car models Renault Logan 1.4 and Logan 1.6 have won the recognition of many thousands of motorists over the nearly ten-year history of their presence on Russian roads. The concept of the French manufacturer, who decided back in 1998 to create an inexpensive and practical passenger car intended for emerging markets, in Russia received the most triumphant continuation and unexpected development.

If in 2005 it all started at a small site of the Avtoframos enterprise in Moscow with a “screwdriver” assembly of several thousand cars a month, today the Volzhsky Automobile Plant is already building its annual plans, relying on a whole “Logan” model scattering: Renault Logan, Renault Sandero, Lada Largus. The sales of these three models in the country in 2014 exceeded 160 thousand pieces.

To a large extent, such popularity of these Renault models was ensured by the use of single-shaft internal combustion engines (ICEs) of the K7J 1.4 l and K7M 1.6 l series as power units on them as power units. The flagship of the line for Renault Logan, it is customary to consider a 16V four-cylinder liquid cooling unit with the K4M index, the production of which, in addition to the parent company Renault Espana. It has also been mastered at AvtoVAZ production sites. This 16-drip engine with decent technical characteristics is still equipped with other Renault models (Sandero, Duster, Kangoo, Megane, Fluence), as well as Lada Largus and Nissan Almera G11.

Features of the design and specifications of the internal combustion engine

The design of the K7J engine (made by Automobile Dacia, Romania) 1.4 l / 75 hp. inherited from the rather old engines of the Renault corporation of the 80s of development (ExJ series) and therefore looks somewhat archaic: here there is an unusual chain drive of an oil pump, used on units with a lower camshaft, and ancient timing rocker arms.

The rest of the 1.4 engine solutions are standard and do not differ from other four-stroke 4-cylinder single-shaft SOHC engines: the arrangement of the cylinders is in-line vertical, 2 valves per cylinder, the timing belt drive from a toothed belt, liquid cooling and a combined lubrication system (the most loaded parts of the internal combustion engine are lubricated under pressure, among others - by simple spraying). K7J is more than 400 thousand km of run. Engine 1.4 provides the car with the following dynamics: the maximum speed is 162 km / h, it is gaining a hundred in 13 seconds.

Renault Logan K7M 710 engine and its successor K7M 800 (produced by the same Automobile Dacia) 1.6 liters and 86 hp. (K7M 800 - 82 hp) in design almost completely coincide with the K7J, they also have, but have a piston stroke increased by 10.5 mm, obtained by changing the height of the block.

A different clutch and flywheel (larger diameter) is also used, and the transmission case has minor shape changes. Resource K7M also exceeds 400 thousand km in mileage. Dynamic characteristics of the motor: speed at a maximum of 172 km / h, 100 km / h - in 11.9 sec unlike 1.4.

The greatest differences in design and performance are observed in the K4M engine, despite the fact that this ICE is 1.6 liters and 102 hp. is also just another development of the K7M series. All-new 16-valve cylinder head with two lightweight camshafts and a new piston system. Here, finally, the need for constant adjustment of the internal combustion engine valves through fairly short runs is eliminated, and the simple use of well-known hydraulic compensators is eliminated.

The motor accelerates the car to 100 km / h in 10.5 seconds, reaching a maximum of 180 km - quite good performance. There are no frankly weak points in this unit: the necessary changes have been made to the system in terms of the pump and thermostat, the ignition module has also undergone revision.

Advantages and disadvantages of powertrains

Thus, a detailed analysis of the technical characteristics of all three ICE samples, as well as practical experience in operating Renault Logan with these power plants, allows you to determine which engine is better. The more powerful engine Renault Logan 2 1.6 l with liquid cooling is still somewhat preferable to its "big brother" 1.4 l. Power 75 hp just not enough for comfortable control of a laden car neither on a country road, nor in short "dashes".

And in the dispute between a 16V motor and 8V, the first sample is the undisputed leader. The only characteristic by which 16V loses to its opponent is “elasticity”. For the rest of the characteristics, 16V is better. Renault's liquid-cooled V16 engine is simply much more modern and gives the driver more options.

The engine does not tolerate 92nd gasoline well. The dealer recommends an oil service every 15 thousand km. It includes almost 5 liters of 5W-40 or 5W-30 oil. Air filter and spark plugs typically last twice as long. The timing belt with rollers is replaced every 60 thousand km, the generator belt is usually changed along with it, the water pump runs 2 - 3 replacements.

Unlike a similar 8-valve engine, the sixteen-valve is much quieter, more economical and does not cause any inconvenience with strong vibrations. However, drivers note its imperfect elasticity; at high speeds, there is still not enough traction for confident overtaking.

The owners are also upset by the high cost of spare parts and their meager assortment in stores, compared to older models, as well as the lack of protection: when the timing belt breaks, the valves always bend against the pistons.

Engineers estimate its resource at about 400 thousand kilometers.

Renault Logan is a car that is known to every Russian motorist. This is not surprising, because, according to official data, it is he who is on one of the leading steps in terms of the number of copies sold per year. The most popular engine options for this machine are 1.6-liter units with 8 and 16 valves, and today we will focus on them.

Passport data

It is noteworthy that both versions of the power units have the same volume, equal to 1.6 liters. Nevertheless, the difference in the number of valves has a huge impact on the difference in performance and fuel consumption of these two versions. So, engine 1.6 - 8 cl. has a power of 82 hp. and 115 units of torque, and the 1.6 engine - 16 cl. has a capacity of 102 forces and a torque of 138 Newton meters.

At the same time, the fuel consumption in the combined cycle will be approximately the same and is just over 7 liters per 100 kilometers. The service regulations for both engines are approximately the same, but the reviews of the owners who purchased Renault Logan with “mechanics” and “automatic” differ radically from each other.

This is easily explained by the fact that both motors have different indicators and technical characteristics and at the same time have different reliability, trouble-free service life and other passport data.

Dynamics

A cursory look at the performance and study of feedback from owners of Renault Logan with a 1.6 engine shows that, despite the equal displacement, engines with 8 and 16 valves behave differently on a car of the same configuration. So, the 8-valve design, especially when paired with an automatic transmission, greatly cuts the actual capabilities of the chassis and makes the car a real "city vegetable".

« Andrey. Ownership experience - 2 years. I decided not to go far from the golden mean and took Renault Logan with a 1.6 - 8 cl engine. Of course, this is better than less powerful options, which will make the car very slow and clumsy, but 16-cl. the design makes the sedan a much more dynamic transport. For example, my acceleration reaches more than 12 seconds, taking into account the use of a 4-speed automatic machine, this figure increases by a few more units. "

It is interesting that on the network you can find quite a few reviews of Renault Logan owners with the most powerful and dynamic version of the motor. " Artem. Ownership experience - 1 year. I have a Logan with a 102hp engine. In principle, I am satisfied: the car has already covered 20,000 kilometers without a single breakdown. The only thing is to very carefully monitor the regulations and the quality of the gas station that you visit most often. A friend of mine on a 102-horsepower engine burned out the piston because of this. Fuel consumption is kept at around 8-9 liters, according to the manufacturer, this is within the normal range. "

Reliability

When considering motors with 82 and 102 hp. on board, we must not forget about the key indicator for the power plants of the car, their reliability. In other words, the reviews of Renault Logan owners will make it clear what the experience of operating engines with these configurations is and what surprises should be feared during long trips.

« Eugene. Ownership experience - 2 years. I have a motor with 102 forces and 16 cl. At first, it seemed to me that the car was unrealistically powerful: I definitely did not expect such potential from Renault Logan. But over time I got used to it and now I can say with confidence that 102 forces pull the car only thanks to mechanics - an automatic machine would definitely not cope with such work. When driving on the highway, the engine overheated twice, the car is afraid of high revs. "

It is interesting that among the reviews of drivers who have already tested 8 cl. and 16 cl. motors, there are many who prefer an automatic machine to any other type of transmission. " Oleg. Ownership experience - 8 months. I have 8kl. motor with a volume of 1.6. I mainly drive around the city, so I consider the machine to be an indispensable thing for me. Although the speed is only 4, in the city limits the power is enough for the eyes. The most powerful engine is useless here, and its fuel consumption will be slightly higher. "

Transmissions

It is well known that 8 class engines. and 16 cl. with different types of gearboxes, be it a manual transmission or a classic automatic transmission, they will behave differently, even with the same power, filled with engine oil and other conditions that can affect the dynamic characteristics of the car.

« Alexei. Ownership experience - 3 months. I have a Renault Logan with a 16 cl engine. and 102 horsepower. I believe that an automatic machine is categorically contraindicated in such a machine. It is this transmission model that has only 4 speeds and is morally outdated: such a pair under the hood can greatly reduce the actual capabilities of the car and make its power equivalent to 8 cells. motor with mechanics. In addition, an automatic machine requires a complete or partial replacement of the transmission oil, and such a service in my city costs a lot of money, and as a result, this can increase the cost of maintaining the car several times. "

By the way, many drivers consider another disadvantage of the machine to be a faster waste of the resource of the components of the power unit, along with more expensive repairs.

« Ephraim. Ownership experience - 1 year. I had a car with an 82 hp engine. and 8 cl. type with automatic transmission. Since the car was bought for work, it soon had to be changed due to fuel consumption disproportionate to any passport indicator. On the motor 82 hp with an 8-valve design according to the on-board computer, this figure exceeds 12 liters. Now I drive a car with a 16 grade. motor and has never been able to exceed the figure of 10 liters per hundred. By the way, maintenance of a transmission, in contrast to an automatic machine, is almost two times cheaper, there is something to think about ”.

Summing up

Logan 1.6 engine with 8 and 16-valve design is a modern, economical and dynamic vehicle. For a city dweller, an automatic transmission is suitable, which will greatly facilitate movement in traffic jams, and mechanics will allow the car to reach the maximum potential on the highway and save on gasoline and maintenance. At the same time, a less powerful version of the motor is also more suitable for city life, when, as a "top-end" unit, it is perfect for driving on the highway.