AVTOVAZ continues to localize borrowed LADA models. How does the most popular minivan Largus feel, having changed a foreign unit to a Russian analogue, understands long test drive Lada Club.
Changes not visible at first sight
This LADA Largus Cross we took it for a test drive to check the integration of a Russian 16-valve engine and a domestic gearbox on a borrowed Dacia platform Logan MCV. The localization process at AVTOVAZ has been going on since the launch of this car in 2012. Albeit slowly, but the main foreign units are being replaced by Russian ones. The question arises: Is it good or bad? Of course, a foreign motor pulls on the bottoms and is recognized as a rather resourceful unit, however, Russian drivers are closer in spirit to the domestic version with our sixteen-valve. For decades of its operation in Russia, drivers and mechanics have learned all its nuances. In addition, working in conjunction with a VAZ box, this couple should be more suitable for a new family minivan. We decided to check all these assumptions during our test drive.
In the fight for comfort
For a cleaner comparison, we rode one of the first LADA Largus for several days. The same herd of 102 hp, incomprehensible to Russian “economists”, with three extra “mares”, because of which all car owners have to spend more on transport tax. A short test reminded us of the main claim to gear ratio traction gearbox. Even on the first test drives, journalists almost unanimously noted an overestimated number of revolutions at low speeds. For example, at a cruising speed of 120 km / h, the unit spun up to 4000 rpm. This adversely affected fuel consumption, forcing owners to spend more fuel for the same 100 km. In addition, if the owner of the minivan got on the freeway, then at a speed of 150 km / h the engine practically went into the “cut-off” and the tachometer needle loomed in the red zone. The Russian Kulibins were able to defeat this ailment by replacing two gears of the gearbox. This upgrade can be made without dismantling the motor, but simply by unscrewing the left wheel and removing the protective cover. You can learn more about these manipulations in our old review materials.
With the transition to the Russian engine and gearbox, the problem with overspeed and increased consumption was automatically removed. But the high-speed Russian engine with a volume of 1.6 liters and a power of 106 hp. has its drawbacks for this body. This can be best understood in the summer and when the cabin is fully loaded. If a foreign unit easily starts at traffic lights with a slight pressure on the gas pedal, then our motor must be untwisted in advance. This is especially noticeable when the air conditioner is turned on. In this mode, part of the power goes to create a favorable atmosphere in the cabin and the domestic 16-valve valve does not feel so comfortable. The most cruel test for him will be the presence of all passengers in the cabin and a loaded trailer in the back. In this case, before releasing the clutch pedal, the driver will have to spin the engine well, raising the arrow to 2000 rpm.
Speed advantage
Losing at the start, our power unit wins back points at high speeds. When reaching speeds above 100 km / h, the car feels free on the track, without forcing the driver to nervously watch fuel consumption. In general, LADA Largus conquers higher speed modes from 120 to 150 km/h at 3500-4500 rpm. This allows you to calmly accelerate without flinching from the roar of the engine under the hood. Of course, driving faster than 140 km/h on Russian roads is dangerous, but for residents of Moscow and St. Petersburg, these speeds are not prohibitive. On developing toll highways maximum speed limited to 130 km/h, which means that the flow rate will be in the region of 150-160 km/h. Imagine what a foreign motor will have to experience at these speeds, working for a long time at maximum speed. In the Russian version, LADA Largus is ready for such feats without detrimental consequences for the engine.
As for the choice of engine for the Cross version, here we are inclined to the original version with a borrowed engine. For cross-country driving, high speeds are not required; stable traction at medium speeds is more appreciated here. In addition, small mud "traps" and stretches of sand near small rivers do not tolerate excessive wheel spin. To overcome them, low-speed motors with stable traction at 2000 rpm are better suited. Unfortunately, now it will not be possible to get lost in the choice of Russian and foreign motors. AVTOVAZ completely transferred LADA Largus to domestic engines internal combustion. But do not forget that this miivan with a full-fledged third row of seats has received recognition as the most enduring LADA product. And this means that with a strong desire to become the owner of a foreign unit, on secondary market you can find a lot good options this car.
The Largus car presented today by the concern is a joint project of the domestic auto industry and the French Renault corporation. Issued this model car since 2008. According to many characteristics, Largus copies the Renault Logan MCV model (production began in 2006), having distinctive only radiator grilles, parts of the lining and, in fact, the manufacturer's logo.
External characteristics
In many ways, it determines which engine will be installed on the Largus, but regardless of this, external dimensions vehicles will remain standard.
Judging by them, we can safely attribute the car to the largest among the B-class:
- clearance - 16 cm;
- base - 2 meters and 90.5 cm;
- length - 4 meters and 47.3 cm;
- width - 1 meter and 74 cm;
- height without handrails - 1 meter and 64 cm (with handrails 3.4 cm higher).
With standard dimensions, you can buy a car in modifications cargo van or passenger car. The latter, in turn, can also be 5-seater or 7-seater. Depending on the selected modification, the volume of the luggage compartment will differ. Yes, freight vehicles have only 2 seats for passengers and a cargo compartment volume of 2540 liters. Modification for 7 passengers will only accommodate 198 liters of luggage, and 5-seater - already 700 liters. If you additionally fold the rear row seats, you can increase this volume to 2350 liters, which is almost like a cargo version.
In general, the appearance of the car is restrained, and its main advantage is spaciousness. Maybe that's why its name is translated from Latin as "generous". For ease of use of large volume luggage compartments they are equipped with swing doors. The total glazing area of the car is large, all the lines are even, the shapes are simple rectangular.
Salon Features
Depending on the configuration, not only the Largus engines can change. The maximum equipped offer for the car has the ability to adjust the lumbar support, power steering, front power windows, air conditioning, ABS and radio. The cabin comes standard with a seat lift, vertical steering wheel and easy-to-read dash, a notable difference from the Logan MCV.
There is a lot of space in the cabin, but on rear seats passengers of any height and weight can comfortably accommodate. If necessary, the seats can generally be removed or folded. The interior of the car is also equipped with side and front airbags, three-point seat belts and a fastening system. Passive safety Passengers are provided with a special body structure that allows you to redistribute the shock thanks to the front subframe.
Main working parts
In general, Largus engines have minor differences in reliability and the type of fuel used (gasoline only). Their volume is always 1.6 liters and functions only in conjunction with a mechanical five-speed gearbox gears. Due to Euro-4 requirements, the Largus engines had to be revised at one time, and they lost some power. Now the 8-valve power unit has only 83 hp. with., and 16-valve - 103 liters. With. The difference in their work is noticeable in the acceleration time to 100 km / h, maximum speed and other dynamic indicators. So, an engine with a capacity of 83 liters. With. able to accelerate to 100 km / h in 14.5 seconds and keep the maximum speed at around 156 km / h. Another modification of the power unit is already capable of demonstrating a similar acceleration in just 13.1 seconds, and its maximum speed is at around 165 km / h.
Chassis, front suspension and got "Largus" from its predecessor Renault-Dacia Logan MCV. Of course, they have been reinforced for stable operation in our climate and bad road conditions. When buying a car, you should pay attention to the turning angle of 11.5 meters.
General characteristics of the Largus engines
Despite the fact that the power units for this car were fully developed by the French concern, the engines are fully adapted to the conditions of the Russian climate. Each of them, regardless of modification, can be used in conditions harsh winter, off-road and even sharp fluctuations in temperature, which is typical of some regions.
Regardless of the valve system of the Largus engine, during the first change, oil should only be filled with what is indicated as standard. At different times, the company changed oil manufacturers, so special attention should be paid to this issue.
It is interesting that engine manufacturers set a service life of only 160 thousand kilometers on them, despite the fact that completely different indicators are indicated in the passports for power units upon purchase.
Eight-valve engine
This modification of the power unit was at one time borrowed from the Logan and Sandero car models. For the first time, these engines began to be installed on foreign-made cars 7 years ago, but after the need to comply with Euro-4 environmental standards, their design had to be revised, which led to a slight loss of power.
According to the manufacturers, the resource of this unit is 400 thousand kilometers. eight- valve engine"Lada Largus" receives positive feedback from consumers not only for a good resource. An important condition for many is the unpretentiousness of the unit to fuel. Of course, the regular use of low-quality gasoline will affect the operation of the car, but a few refuelings with low-octane fuel will not harm.
Disadvantages of the unit
According to motorists, the main disadvantages in the work can be identified this engine:
- high fuel consumption;
- high noise level;
- noticeable vibrations during operation;
- floating idle speed;
- the need to adjust the valve every 30 thousand run;
- the need to replace the timing belt every 60 thousand mileage;
- gland leakage rate crankshaft.
Also, drivers note that the power of this engine is not always enough, especially at the beginning of the movement and in the yards.
16-valve modification
The engine on the Largus K4M is installed only on a 7-seater station wagon and in luxury car trim levels. Its main hallmarks are: quiet operation, absence of vibrations and combined fuel consumption of only 9 liters per 100 km.
Disadvantages of the unit
16-valve Largus engines also do not always have only good reviews. Among the shortcomings of the power unit, many note insufficient dynamics and skipping speed when using low-octane fuel. Of course, the complexity of assembling this unit also affects its cost.
The price for its maintenance will also be noticeably higher (in comparison with the 8-valve one), but at the same time, the manufacturer gives a guarantee of operation of 450 thousand kilometers, and with proper care and timely inspection, the engine will last longer.
In general, if you choose between two engine models, the more powerful one is also more profitable, since it does not require frequent valve adjustments.
Which engine is better?
The undoubted conclusion from many opinions is that when choosing an engine for the Largus, you should pay attention to its most powerful model. Only a 16-valve unit can boast maximum reliability and practicality, as it performs equally well in both highway and city conditions.
Models of "Largus" from and Spanish production are being produced today. You can determine the place of their assembly by marking on the power unit: assembled in Russia - P, assembled in Spain - D. Interestingly, these engines do not differ at all in quality. Perhaps this was due to the replacement of the production line, which now meets all international standards. In general, standard jokes about the domestic auto industry in this case will be inappropriate.
The nuance of using a car with a powerful engine installed was only its operation in the summer, when the air conditioner was turned on in the cabin. low rpm At the same time, the power unit is felt with some effort, but at speeds above 90 km / h it ceases to be felt.
Fundamental differences between engines
The tradition of producing the same car model with the opportunity to purchase it with various engines internal combustion AvtoVAZ began with the production of the tenth Lada model. Interestingly, but the “head” of the power unit there could be replaced even independently. Today, various modifications of cars are offered to consumers in the person of Largus.
With some simple math, it can be determined that the simplest model The engine has 4 cylinders, each with 2 valves. This feature negatively affects gas exchange and the system of the intake and exhaust tract, which means it reduces the efficiency of the car and increases fuel consumption.
In fact, thanks to the painstaking work of engineers, it was possible to reduce the gap between fuel consumption in different engine modifications to almost zero. In this way, specifications are not significant factors of choice, but the cost of power units with a different number of valves still differs markedly.
More new model"Largus Cross" engine has only 16-valve. This is due to the approach of the car to the luxury class. As standard, in addition to powerful engine, there are other benefits that are available in regular models only with an extra charge or a complete set of increased comfort.
In any case, it should be remembered that absolutely all Largus car models are assembled on modern conveyor lines and meet all international standards. Does it make sense to pay more for the number of valves with almost similar characteristics - this, of course, is a private matter for every motorist.
At the beginning of the production of Lada Largus, power units manufactured by Renault were installed on the car. So, Largus received a 16-valve power unit marked K4M, which was also installed on Renault cars Logan MCV.
Device and characteristics
The engine marked K4M is a high-tech power unit with high performance. The first production of the power unit was launched back in 1999. The device of the motor is quite simple and understandable. The only difference from the younger brother K7M is that there are two camshafts in the block head.
Also, the motor is much quieter, since hydraulic lifters are installed. The engine is equipped with sixteen valves, which increases power characteristics and slightly reduces fuel consumption. The average engine life is 350,000 - 400,000 km.
Main technical characteristics of K4M
The French engine was also equipped with gearboxes from Renault cars marked JR5 or JH3, which were also installed on Logan.
Service
With normal and timely maintenance, the Largus engine is 16 cells. 1.6 liters is able to last long enough, and to be more precise, up to 500,000 kilometers. According to the manufacturer's standards, as well as maintenance manuals, the engine must undergo scheduled maintenance every 10,000 - 12,000 km, it does not matter what fuel the power unit is operated on.
Consider what operations are provided for during scheduled maintenance of the Largus engine, which has a 16 valve mechanism:
- Oil change.
- Oil filter replacement.
- Replacing the air filter element.
- Scheduled fuel filter replacement.
- Check spark plugs.
- Checking electrical systems, as well as electronic block engine control.
Engine oil change: algorithm of actions
To begin with, it is worth deciding which oil to pour into Largus. The engine manufacturer for Largus - Renault recommends that only high-quality engine oil be poured into the engines, namely ELF EXCELLIUM NF 5W40. According to the manufacturer, it is this kind of engine oil that is poured into cars that roll off the assembly line. But, as practice shows, this particular brand is not always poured on services lubricating fluid.
For Lada Largus, there is also a list of recommended engine oils that can be filled in instead of ELF EXCELLIUM NF 5W40. In fact, many motorists, when conducting Maintenance with their own hands, fill in any other semi-synthetic oil which is second to none in terms of quality.
Another equally important question that interests many motorists is how much oil is in the engine? Unlike the 8-valve power unit, where it is necessary - 3.3 liters, the Lada Largus 16 valve fits - 4.8 liters of lubricating fluid. So, if a motorist decides to change the oil on his own, then you can safely take a five-liter canister into the 16-valve K4M engine.
Consider the sequence and number of actions aimed at replacing engine oil in the Lada Largus engine there are 16 valves:
- Let the car engine cool down.
- Access from below the vehicle is required for subsequent operations.
- Unscrew drain plug from the crankcase. It is first necessary to substitute a 5-liter container under the drain hole, and also dismantle the engine protection.
- When the oil has almost run out, you can replace oil filter. We do not hammer that it is necessary to pre-lubricate the filter element by pouring 150 grams of motor fluid into it.
- We twist the drain plug, after replacing the sealing ring.
- Unscrew filler plug, and start pouring oil into the Largus engine.
- After the required volume is filled, it is worth warming up the engine for several minutes. After the power unit is turned off, it is worth checking the oil level in the engine using a dipstick. For the need to top up motor fluid to the required level.
tuning
The main type of refinement of the power unit is, today, chiptuning. This is a fairly common operation, of which there are several types. So, chip tuning can be aimed at increasing power or reducing fuel consumption.
Chip soldering
On Lada Largus, soldering a chip should be trusted to professionals, since carrying out the operation on your own can lead to unexpected and bad consequences. The procedure itself looks like a chip programmed to increase engine power is soldered into the electronic engine control unit. After that, the ECU is flashed and the engine is ready for operation.
Firmware for the electronic engine control unit
The second and more common option for chip tuning is to flash the engine control unit to perform certain functions. The most common programs are to increase power or reduce the amount of fuel consumed. The second option is the most popular.
Many motorists on the forums share their experience of independently flashing a standard engine control unit. In most cases, this option works, and the car enthusiast can carry out the process at home, without the need to visit a car service.
It is worth noting that if the procedure fails, then it may end badly, both for the engine and for the electronic control unit.
The worst option would be to replace the computer, which will entail a large investment. Therefore, it is recommended to contact a car service specialist to perform such processes.
Conclusion
The Lada Largus 16-valve engine with a volume of 1.6 liters is a powerful and at the same time reliable power unit developed by the French company Renault. The engine was installed on cars of the Volga Automobile Plant for quite a long time.
But, subsequently, the company's management decided to stop completing domestic cars power unit K4M. This was done to reduce the cost of vehicles.
A car, especially a modern one, is a rather technically complex device, the design of which contains a considerable amount of smart technologies and comfortable solutions.
For example, behind the not-so-noticeable air recirculation button in the car, three rather useful functions can be hidden at once. But not every driver has the necessary knowledge to use them.
Using the system. Both in hot summer weather and in winter cold, the use of a climate control system or air conditioning is indispensable. In cold weather, we try to make the air a little warmer, for which the temperature control knob is turned into the red zone. In the heat, on the contrary, we set the lowest possible temperature in the cabin in order to cool down as quickly as possible. At first glance, everything is clear. But what is the purpose of having this mysterious "air recirculation" button?
Most drivers use this system in order to deal with existing unpleasant odors. For example, if the road passes by a landfill, or a smoky truck passes nearby. In this case, pressing this button closes a special damper on the supply ventilation, which causes the absence of unpleasant odors. The only point is that all this must be done in advance so that all these substances do not have time to get into the system.
However, a fairly small number of drivers use this button when they get into a traffic jam, in which the difference between the surrounding air and the mountain air is most clearly felt. For example, scientists were able to prove that the use of this button while driving on sections of roads with the highest level of traffic or the presence of traffic jams will make it possible to reduce the level of harmful emissions entering the cabin by about 20%.
Of course, driving through the traffic jam completely in this mode of operation of the air conditioning system will be quite difficult, since after a while the windows may begin to fog up. And the air in the cabin also needs to be updated. But still, the use of recirculation in conjunction with cabin filters becomes a good option to protect against the harmful effects of exhaust gases.
Other features. In addition, there is another functional side of this button. It is also necessary to ensure that the air in the car interior warms up as soon as possible. The scheme of its operation is approximately as follows: when the recirculation button is pressed, the valve of the air duct supplying air from the street will be closed. The consequence of this is that only the air inside the car interior begins to circulate through the stove.
Despite the fact that the air temperature outside is firmly below zero, it should be a little higher inside the car. To this parameter is added the air coming from the stove starting to warm up, or from a special electric heater, which some car models are equipped with even as standard. This means that the installation
Lada Largus engines are 8 and 16-valve petrol units. It is no secret that domestic Lada Largus this is nothing but Renault Logan of the first generation. Accordingly, the engines there are from Renault, but not everything is so simple. After all, since December 2015, the manufacturer decided to replace the 8-valve engine with a capacity of 84 hp. ( Renault K7M), on the domestic eight-valve VAZ-11189 87 hp In addition, 16 valve engine Renault K4M(105 hp), which used to be imported from Europe, is now produced at AvtoVAZ and produces only 102 hp. But the drop in power of the 16 valve engine is not due to some constructive changes, but by reconfiguring the injection system to comply with the more stringent Euro-5 environmental standard. Today we will talk about all the engines of Lada Largus.
Engine device Lada Largus 1.6 8 valves
Petrol Renault engine K7M at Largus produced 84 hp. Structurally, it is a four-stroke, four-cylinder, in-line, eight-valve, overhead camshaft. The order of operation of the cylinders: 1–3–4–2, counting - from the flywheel. The engine power system is MPI distributed fuel injection. The engine with gearbox and clutch form a power unit - a single unit, fixed in engine compartment on three elastic rubber-metal bearings. The right support is attached to the bracket on top cover timing belt, and the left and rear - to the gearbox housing. The engine cylinder block is cast iron, the cylinders are bored directly in the block. The nominal diameter of the cylinder is 79.5 mm. The motor was assembled at the Romanian Dacia plant.
Engine cylinder head Lada Largus 1.6 8 valves
The cylinder head of the Lada Largus 1.6 is cast from an aluminum alloy, common to all four cylinders. It is centered on the block with two bushings and fastened with ten screws. A non-shrink metal gasket is installed between the block and the head. At the top of the cylinder head are five bearings (bearings) of the camshaft. The supports are made one-piece, and the camshaft is inserted into them from the timing drive side. The camshaft is driven by a toothed belt from the crankshaft.
Engine timing drive Lada Largus 1.6 8 valves
The timing drive on the Lada Largus 1.6 8 valves is carried out according to the following scheme (the image is slightly higher) - the torque from the crankshaft pulley is transmitted to the camshaft pulley by rotating the coolant pump pulley. The belt is tensioned by a special roller, which changes along with timing belt. If the belt breaks, the valve bends. The belt must be replaced every 60 thousand kilometers.
Technical characteristics of the engine Lada Largus 1.6 8 valves
- Working volume - 1598 cm3
- Number of cylinders - 4
- Number of valves - 8
- Cylinder diameter - 79.5 mm
- Stroke - 80.5 mm
- Timing drive - belt
- HP power (kW) - 84 (62) at 5500 rpm in min.
- Torque - 124 Nm at 3000 rpm. in min.
- Fuel type - gasoline AI-92
- Working volume - 1598 cm3
- Number of cylinders - 4
- Number of valves - 16
- Cylinder diameter - 79.5 mm
- Stroke - 80.5 mm
- Timing drive - belt
- HP power (kW) - 102 (75) at 5750 rpm in min.
- Torque - 145 Nm at 3750 rpm. in min.
- Maximum speed - 165 km / h
- Acceleration to the first hundred - 13.5 seconds
- Fuel type - gasoline AI-95
- Fuel consumption in the city - 10.1 liters
- Combined fuel consumption - 7.9 liters
- Fuel consumption on the highway - 6.7 liters
O Russian engine VAZ-11189, which today replaced the previous 8-valve under the hood of Largus, we will not tell in detail. Since the motor is quite common and is found on many Lada models. Structurally, the unit originates from the first front-wheel drive VAZ-2108. 4-cylinder aspirated, with a cast-iron cylinder block and a timing belt. Unit power 87 hp (64 kW) at 5100 rpm. The torque is 140 Nm at 3800 rpm. The engine is designed for AI-92 gasoline.
Engine device Lada Largus 1.6 16 valves
Renault K4M Largus engine with a capacity of 105 horses, which, after “flashing the brains”, began to comply with Euro-5 and give out 102 hp. Initially, the motor was brought from Spain (from the Renault factory), but now it is produced in Togliatti with a high degree of localization. This is a 4-cylinder 16-valve unit with multiport fuel injection and a timing belt. Base cast iron block. The cylinders are bored directly into the block. The order of operation of the cylinders: 1-3-4-2, counting - from the flywheel.
Cylinder head of the engine Lada Largus K4M
The head of the engine block Lada Largus 1.6 liters (16 valves) is aluminum with two camshafts and hydraulic lifters. That is, the thermal clearance of the valves does not need to be adjusted manually. And all thanks to the valve lever hydraulic bearings, which are installed in the sockets of the cylinder head. A hydraulic compensator with a check ball valve is installed inside the body of the hydraulic support. The oil inside the hydraulic support comes from the line in the cylinder head through the hole in the hydraulic support body. The hydraulic support automatically ensures backlash-free contact of the camshaft cam with the valve lever roller, compensating for wear on the cam, lever, valve stem end face, seat chamfers and valve disc.
Timing drive engine Lada Largus 1.6 16 valves
The camshaft drive Lada Largus 1.6 is carried out by a toothed belt from the crankshaft pulley. On the shaft next to the first (counting from toothed pulley camshaft) with a support neck, a thrust flange is made, which, during assembly, enters the grooves of the block head and cover, thereby preventing axial movement of the shaft. The camshaft pulley is not fixed on the shaft with a key or pin, but only due to the friction forces that occur on the end surfaces of the pulley and shaft when the pulley fastening nut is tightened. A broken belt or jumping a few teeth usually leads to disastrous consequences, because this engine is definitely valve bend. The timing belt is replaced every 60 thousand kilometers or after 4 years, whichever comes first, regardless of its condition.
Technical characteristics of the engine Lada Largus 1.6 16 cells.
Station wagon Largus turned out to be incredibly in demand and reliable model. The secret of success turned out to be the fantastic practicality of a roomy car.