Weaknesses of Kia Sorento (Kia Sorento), will additives help? What is the real resource of the engine on the Kia Sorento Diesel engine Kia Sorento.

Cars for the Russian market Kia Sorento were supplied from the head factories of the Korean concern. In August 2005, the assembly of this SUV was launched at the IzhAvto automobile plant. Four years later, the production of KIA Sorento in Russia was discontinued due to lack of funds for the purchase of car kits. In May-September 2011, the IzhAvto plant assembled 800 vehicles in order to fulfill its obligations to the KIA Motors concern.

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AT KIA models Sorento of the first version installed three types of power units:

The restyling of the model in 2006 made it possible to increase the power of the diesel engine to 170 l / s. A number of power units was replenished with a 3.3-liter gasoline engine with a capacity of 247 l / s.

The main malfunctions of the KIA Sorento diesel engine

Practice has shown that the diesel engine is the most problematic in the KIA Sorento. The components of the fuel supply system quickly become unusable, causing difficulties in starting the unit, interruptions in its operation. In the high-pressure fuel pump, friction of parts is observed, forming scuffs. Metal particles pass through the fuel rail into the tank and injectors.

The main factor in the premature occurrence of fuel system malfunctions and engine malfunctions is low-quality “dry” diesel fuel that does not contain sufficient lubricants.

In the Kia Sorento diesel, problems may arise when it is necessary to replace the spark plugs. With a run exceeding a hundred thousand km, they "stick". When twisting, the case may break off.

After a run of over 150,000 km, owners of an SUV often have to deal with the fact that the engine stalls while driving or “acts” when starting. These problems are created by overflow nozzles. They need to be repaired or replaced. The cost of new elements ranges from 8-11 thousand rubles. You will have to pay about 7 thousand rubles for the bulkhead of the nozzles. Since the difference in amounts is negligible, it is worth spending money on buying new items, as they will last much longer.

Breakdowns in diesel engines of restyled models

It was not without problems in restyled models with a more powerful diesel unit. There were cases when, when working with a load at maximum speed, the piston rod broke off. As a result, during rotation, engine elements were broken. The power unit has to be changed. Such breakdowns cannot be called common, but, nevertheless, the risk of this malfunction of the KIA Sorento diesel exists, it appears after a run of over 20,000 km.

Often, owners of cars that have traveled more than 70,000 km are faced with such a problem as the "shooting" of fortune due to a broken bolt. Most often, a breakdown occurs on the 4th element. The manufacturer recognizes the defect, in order to eliminate it, the bolts were replaced with more durable options.

There are no special claims to the turbine. Under normal operating conditions of a car, it flawlessly performs its functions up to 170 thousand. After hundreds of thousands of kilometers, symptoms of malfunctions may appear. The first "bell" is a whistle, the radial play increases, oil appears in the air duct. Repair of KIA in this case will cost 15,000 rubles. You can replace the turbine. It costs about 30,000 rubles. For installation in the service will take 6-7 thousand rubles.

The engine is equipped with a timing chain drive. On the recommendation of experts, it is required to replace it after hundreds of thousands of kilometers. Otherwise, the chain is pulled out, starts to rattle, by 150,000 it acquires unacceptable dimensions. There were cases of drive breaks after 120 thousand. Work on replacing the chain costs between 8-10 thousand rubles.

The service life of the fuel pump is designed for 220,000 km. With a run of 140-180 thousand km, instability of its idling operation may be observed, associated with malfunctions in the pressure reducing valve.

Malfunctions in gasoline engines Kia Sorento

Atmospheric power units are more stable. These motors are equipped with belt drives, which must be changed after passing sixty thousand km.

The main problems of COP gasoline 2.4 are associated with overheating in winter months. The following picture is observed:

  • the engine warms up to 100°C;
  • the pipe in the cooling system does not heat up;
  • the fan runs to cool the motor.

The cause of the problem is a malfunction of the thermostat. The manufacturer failed to fix this problem. Some owners have attempted to replace the thermostat with analogues from other models, but this does not work. Another problem with this engine is a significant increase in oil consumption after hundreds of thousands of runs.

During operation revealed weak spots and the unit has 3.5 liters. The bolt securing the crankshaft drive pulley is destroyed. In the event of a pulley failure, it is advisable to replace it, otherwise the breakdown will soon appear again. This item costs about 5 thousand rubles.

Often, the owners of these models are faced with unstable engine operation associated with air leakage into the intake manifold. In cars with mileage exceeding 100,000, there were breaks in the damper, which penetrated the cylinder. This KIA malfunction Sorento is eliminated in the service for 30 thousand rubles. The concern conducted a campaign to eliminate this defect in 2005.

The owners did not have serious complaints about the 3.3 engine.

Maintenance KIA Sorento

To extend the life of the car, to eliminate many of the problems that arise in the KIA Sorento allows an attentive attitude to the technical tool, the timely replacement of elements for which a certain service life is provided. Owners should know the resource of some important components and parts:

  1. Drive tension roller - 130 thousand km.
  2. Water cooling pump - 110 thousand km.
  3. Catalyst - 120 thousand km.
  4. Steering rack - 150 thousand km.
  5. Generator - 170 thousand km.
  6. Fuel level sensor - 150 thousand km.

Maintenance of KIA, like any other car, primarily includes preventive work with the brake system. This is a guarantee of the safety of the driver and passengers. After a run of 40,000 km, the KIA pads on the front discs need to be replaced. The rear elements last longer, they can be changed after a hundred thousand runs. At the same time, the vacuum pump may become unusable. It is required to check the integrity of the hoses, on which hernial formations occur, creating a risk of rupture.

Periodically, it is necessary to inject splines of the dispenser and cardan shaft, shaft crosses. The cycle for replacing oil seals is 110 thousand kilometers. Many malfunctions of the KIA Sorento all-wheel drive are associated with their wear and tear.

These SUVs are distinguished by a strong, reliable suspension. In order to keep it in excellent condition, after ninety thousand kilometers it is necessary to replace the bushings and stabilizer struts, after 120,000 it will be necessary to replace the ball bearings, and after another twenty thousand it will be time to install new silent blocks and shock absorbers.

In general, owners and experts believe that the quality and cost of this SUV are in perfect balance. Many breakdowns characteristic of the KIA Sorento can be prevented and eliminated without exorbitant costs.

Kia Sorento I appeared in 2002 and at one time was more popular than Tuareg and Pajero. And although the very first cars are already 17 years old, they still stand out in the traffic stream and look no worse than their prestigious peers - the BMW X5 I and the Lexus RX 300 II. After all, we like to meet by clothes! And although the first Sorento is scolded for its oak suspension and poor handling, it performs amazingly off-road. What else attracts a Korean jeep and whether it is worth buying, we will understand in the article.

Which motor to choose

Most of the Sorento is sold with a 2.5-liter diesel engine. Before restyling, the "engine" developed 140 horsepower, and after - 170. "Horses" added a control unit and a turbine with rotary blades.

Such a motor good weapon for a jeep, but it cannot boast of reliability. Some owners have experienced a loss of power and increased oil consumption due to the breakdown of the sealing rings. Less commonly, the connecting rods break and the turbine fails.

Fans of gasoline units are given a choice: 2.4 engines with 139 hp. with. and 3.5 for 195 liters. with. The first one works only with "mechanics", and it cannot be called smart. The second is the most dynamic, but also the most “gluttonous”. For a "hundred" unit 3.5 consumes 15-17 liters of fuel.

Where will the Sorento take place?

Clearance "Sorento" - 205 mm is enough for most country roads. But the suspension is missing. On pits and bumps it breaks through, and in turns it starts to “fill up”. But on a country road with all-wheel drive turned on, the car shows itself in all its glory.

There are two all-wheel drive systems - EST and TOD. The first - Part-time is connected if necessary and allows you to save on fuel. The second - Full-Time functions with all-wheel drive all the time. EST is convenient for the city, and TOD is for broken dirt roads.

What is special in the cabin

The interior design leaves many questions. It is especially unclear on what basis the colors were selected. The dark gray top of the center console and the beige lower part of the cabin are in no way combined with the gaudy brown inserts in the center console and on the door armrests. For complete trash, only the blue and pink shades of the ceiling are missing.

However, there are no comrades for the taste and color. Perhaps you like this design decision. Share your opinion in the comments after the article.

There are also versions with a gray interior, without woodgrain inserts. Inside, not to say that it is exquisite, but everything is average and necessary for comfort.

Depending on the configuration in the Sorento you can find:

  • Cruise control;
  • electric mirrors and their heating;
  • electric driver's seat height adjustment;
  • heated front seats;
  • single-zone climate control;
  • leather interior.

The steering wheel, although decorated with aluminum inserts, looks boring and simple. In versions with a multimedia steering wheel, these inserts contain music control buttons.

The driver and his neighbor are not offended by the place. Those who sit behind them are less fortunate. There is not enough distance from the backs of the front seats to the knees of passengers, and this despite the large dimensions of the body - 4567 mm long and 1863 mm wide.

As many as three lamps are responsible for lighting! Not only the front and central parts of the cabin are illuminated, but also the trunk.

The luggage compartment is shallow for an SUV. Its volume is 897 liters. Items and suitcases longer than 90 cm will not be included. They will have to be folded across the trunk.

What problems can a Jeep have?

Among the problems of the Korean SUV is a weak paintwork and the lack of anti-corrosion treatment. The whole body is susceptible to rust, but most of all - the thresholds, the frame in the places of the rear arches and the arches themselves, the rear wings.

The diesel engine takes a long time to warm up in winter. At -20 on the street, it takes from 15 to 25 minutes to warm up the interior of a moving car.

The Common Rail fuel system is capricious about diesel quality. Already at 170 thousand mileage, the fuel pump may require replacement high pressure. It costs about 40 thousand rubles without taking into account work.

Fuel injectors care even less - 100-150 thousand km. New ones cost 16,000 rubles apiece, and there are four of them in the engine.

Keep in mind: if a car is being sold at a big discount, its fuel system may be dying. If everything is in order with her, the car will not cause trouble from MOT to MOT.

How much does it cost and with what problems is it sold

On the "secondary" "Sorento" is often sold with diesel units. We found such a car for 430 thousand rubles:

The model with the most "gluttonous" petrol "engine" 3.5 is sold at the same price as the 2.5-liter "diesel":

A post-accident copy of 2003 with a mileage of 240 thousand km was found:

Should I take the "Kia Sorento I"

The first generation Kia Sorento is the car that is definitely worth taking. It is unique and unlike anyone else, and off-road driving gives an incomparable delight. Due to the occasional problems with the Common Rail fuel system, the SUV is more suited to tech-savvy drivers.

Do not forget that in terms of off-road qualities, subsequent generations of Sorento are significantly inferior to their older brother. Over the years, what the fans of the model were afraid of happened: the frame SUV turned into an urban crossover. Without an “honest” all-wheel drive, low gear, but with a classic Haldex clutch for crossovers. It's a pity…

And what do you think about Kia Sorento I"? Share with us in the comments your experience of owning an SUV.

Kia Sorento is a mid-size crossover named after the resort town of the same name in southern Italy. The car was put into series production in 2002. Since then, three generations of the model have been developed, which equally gained popularity on domestic roads. The second generation has been produced since 2009. It is noteworthy that the basis of the Sorento's main competitor, the Hyundai Santa Fe, was chosen as the crossover platform. Three years later, the model has not undergone significant changes during the planned restyling. And already in 2014, Kia announced the start of production of the third generation of the crossover.

If the first generation was subjected to minor criticism: stiff suspension, uncomfortable handling, high cost for inexpressive equipment. That second generation of Kia Sorento, on the contrary, received a lot of laudatory reviews. The buyer was provided with a wide range of power units available to choose from various configurations crossover. At the same time, the car is adapted to Russian operating conditions, which is an important help in choosing a quality vehicle. But besides this, it is important to consider the resource power plants. In this article we will tell you in detail what is the resource of the Kia Sorento engine.

What engines are equipped with Kia Sorento?

The first generation of the crossover was equipped mainly with a 3.5-liter G6CU DOHC power unit with a capacity of 192 horsepower. The motor was aggregated with a five-speed manual gearbox or automatic transmission. In 2006, the manufacturer carried out a major upgrade of the model, adding several unique assemblies to the line of power plants. So the 2.5-liter D4CB turbodiesel engine became available for purchase. With the advent of the second generation of the Kia Sorento model, a new G4KE assembly appeared in the line of engines - an engine with a displacement of 2.4 liters, characterized by a power of 170 hp. It was this installation that later became the basic and most popular among all the available modifications.

G4KE features the following technical parameters:

  • 16 valves;
  • 4 cylinders;
  • injector power system;
  • motor resource - more than 250 thousand km.

The Kia Sorento EX package with a 2.2-liter engine is still very popular today. In general, the 2.2-liter engine was loved by many domestic drivers for its unpretentiousness and low fuel consumption. Initially, the unit had a capacity of 190 forces, but in 2013, during the modernization of a number of installations, its capacity was increased to 197 forces. At the same time, a diesel analogue appears.

Actual life of motors

Kia Sorento gasoline atmospheric power units are distinguished by the presence of a gas distribution chain drive and a water cooling system. Some modifications, for example, the 2.4-liter G4KE engine does not have, so it requires valve adjustment every 90-100 thousand kilometers. The G4KE motor is, in fact, an enlarged copy of the G4KD, as it includes a crankshaft with a piston stroke of 97 mm, which is 11 mm more than the younger versions of the unit. The timing chain itself is quite reliable, 100-120 thousand km pass without problems before replacement. The cylinder head of almost all engines is made of aluminum, which gives stability and endurance to the motors.

The only significant problem of the G4KE, G4KD, G4KJ is the turning of the crankshaft liners at the turn of 100 thousand km. Only connecting rod bearings are subject to cranking, but there were no claims to the indigenous ones among the owners of the crossover. However, the problem is rather isolated. From total number of car owners with similar engines, only 1% noted the problem. In general, it can be noted that the reliability of all Kia Sorento gasoline engines is quite high. With proper care, they can travel 300,000 kilometers.

But there has always been a specific attitude towards diesel in Russia. They are picky about the quality of the fuel they fill, and also require increased attention during maintenance. At the same time, Kia Sorento diesel installations are characterized during operation by the constant sound of camshaft tapping. Diesel modifications are difficult to repair, the main difficulties are associated with the accuracy of setting gaps. However, their actual resource is also quite large - 280 thousand kilometers. True, not every owner can reach this milestone.

Owner reviews

The first symptom of a malfunctioning turbodiesel modification, as a rule, is a whistle that comes from the engine compartment while the engine is running. Turbine repair is not a cheap pleasure, so it is important to diagnose all the breakdowns associated with it in time. It is recommended to replace the chain after 100,000 km, in extreme cases - after 115,000 km of run. It is undesirable to delay the replacement of the timing chain, since there are cases when it broke at 120 thousand kilometers traveled. To accurately determine what resource the Kia Sorento engine is, the reviews of the owners of the crossover will help.

Engine 2.2

  1. Vasily, Ryazan. I have a car with a 2.2 turbodiesel engine, I bought a crossover after restyling. The car has already covered 120 thousand kilometers. I recently replaced the timing chain and that's it. There were no more problems or breakdowns. Cylinder head - reliable, well-made. At the service station they said that she was only afraid of overheating. If the arrow has gone into the red zone, then the probability of the need to repair the cylinder head is almost 100%. It is important to use only high-quality engine oil. This is the only way to keep the internal components of the cylinder head in perfect condition for as long as possible.
  2. Stanislav, Cheboksary. I have been driving a Kia Sorento since 2013. On the this moment mileage is 100,000 km. What is important to consider and observe? Of course, the quality of diesel fuel. I recommend refueling only at trusted gas stations. I myself prefer Lukoil, Rosneft, Bashneft, and there are also a considerable number of good fuel suppliers. Injectors suffer greatly from poor-quality "nutrition", the average life of the high-pressure fuel pump is about 200,000 km. As for the installation share. But the manufacturer himself assures that they go 150,000 km without problems. That is, this is a warranty resource, we throw another 100 - 150,000 km on top and get the maximum possible.
  3. Igor, Moscow. I bought a car with a 2.2 CRDi engine with a capacity of 190 forces back in 2009. Today on the odometer the figure is 190 thousand kilometers. The engine is cool, economical and moderately high-torque, but, in my opinion, too noisy. Sometimes, it seems that you are driving a tractor. Maybe I'm wrong. But, at one time I drove many cars with a diesel engine, but I don’t remember that the engines worked so noisily. Replacing the timing chain was needed after 100 thousand kilometers. With its replacement, it is better not to pull, as it may break off and serious repairs will be needed. It also takes a long time to warm up. In winter this necessary measure. Without warming up, it is extremely undesirable to go out on the road. I think that this engine is able to pass 250-300 thousand.

The turbodiesel 2.2-liter engine perfectly copes with the difficulties of operation on domestic roads. Its resource in some cases reaches the mark of 300,000 km. The main thing is to monitor the condition of the engine oil, air and fuel filters, and also not to neglect the planned replacement of consumables.

Engine 2.4

  1. Egor, Voronezh. In 2008, I bought a Kia Sorento with a 2.4 liter engine. Passed already 200 thousand km. In my opinion, the most successful engine is the G4KE. This power unit copes with difficult operating conditions in Russia without any problems. It is important to monitor the condition of the filters and carry out timely replacement of consumables. I use original Hyundai/Kia engine oil. There were no breakdowns. I replaced the timing chain only once - it passed 120 thousand kilometers, it is undesirable to operate it longer, it can seriously stretch and break.
  2. Vyacheslav, Moscow. I have a 2012 Kia Sorento second generation. I took the car from my hands, now the odometer is 180 thousand, I don’t know if they twisted it or not, but it seems to me that the mileage is quite real. The motor runs like clockwork. I have no complaints about the build quality. The oil does not “eat”, although many say that with a run of 200,000 or more kilometers, regular greasing starts. I don't know if this is true. So far, everything is in order. I think that 250-300 thousand km is a very real resource for the G4KE motor. By the way, this is almost an exact copy of the 4B12, which is equipped therefore, there is no doubt about its reliability and quality.
  3. Alexey, Yalta. Personally, I did not like the car. More precisely, the engine itself is 2.4 liters. Up to 170 thousand kilometers everything was normal, and after the car literally fell to pieces. I changed the chain, injectors, crankshaft, oil cooler and other components. It took a lot of time, effort and Money. Maybe I got the wrong set. Even with the passage of the first 100 tyk, the liners began to rotate. At that moment, I realized that I could not avoid problems with the car in the future. In general, repaired, and then sold the car.

Kia Sorento with a 2.4 liter engine can be purchased without any fear. In extremely rare cases, there may be problems with turning the liners, early failure of the injectors. But, in most cases, these problems are the consequences of poor-quality service, neglect of the rules for passing maintenance. The G4KE engine with proper care covers about 300 thousand km.

Engine 2.5

  1. Eugene, Rostov. I won’t discover America if I say that the resource of the Kia Sorento engine depends more on the quality of service. The 2.5 liter D4CB engine is very complex in terms of design. It's not that easy to repair. I myself have been operating Kia Sorento since 2002. Among the shortcomings of the motor, I note that it has a complex timing system of three chains with hydraulic tensioners. The chain in our operating conditions does not live long - 90 thousand, a maximum of 100 thousand. Very loud engine, the new 2.2-litre turbodiesel is much quieter. Antifreeze is best changed every 30 thousand, engine oil after 7-8 thousand run. I’ve already driven 220 thousand by car, there hasn’t been a major overhaul yet, the valves immediately bend with a broken timing chain, therefore, keep an eye on its resource.
  2. Matthew, Yekaterinburg. The resource of a 2.5-liter engine is about 250 thousand - further overhaul. This is an almost identical company of the Japanese 4D56 from Mitsubishi. The Koreans added their turbocharging, changed the fuel injection system, and also upgraded the cylinder head and piston group. I will say that the engine actually failed to add the resource. It is difficult to repair it, many craftsmen say that it does not lend itself to capital. That is, you still have to find a good specialist. The timing chain is weak, it can break and bend the valves. He himself operated the Sorento from 2012 to 2015, after which he sold it.
  3. Alexander, Vorkuta. Diesel is like diesel, nothing special. It works loudly when you start it "cold", it seems that the camshaft is knocking. It turns out that this is a feature of the operation of this engine. Do not leave without warming up, one plus is that it “eats” really little fuel. Weaknesses - copper rings are quickly destroyed, the liners also do not live long, the cylinder head does not like overheating. In general, the engine is not ideal, but it is quite acceptable for everyday work. The average resource is 250 thousand kilometers.

Like any other motor, the D4CB has its advantages and disadvantages. The main advantage of the engine is the need for a small amount of fuel. It is quite reliable, but in rare cases it produces more than its operational motor resource. On average, it serves for 250 thousand kilometers.

Engine 3.5

  1. Kirill, Novokuznetsk. Probably many people know about this engine. It was also successfully installed on the Mitsubishi Pajero. I have had a car since 2017, I took it in the secondary market, it was made in 2004 (first generation). Mileage is already 240 thousand, no one twisted. Excellent performance, the motor has a lot of advantages, but there are also disadvantages. After passing 200,000 km, I constantly add oil - about 0.5 liters per 1,000 km. The chain is not the most reliable - 100,000 km is the limit of its resource. At the service station, experts say that 300,000 km is the ceiling of the resource. Then the speed starts to float, in general, it will be necessary to disassemble the engine and look at the condition of the cylinder block.
  2. Daniel, Moscow. What I like about G6DB is that it doesn't have any bells and whistles, it's simple and thoroughly researched. Weaknesses and shortcomings: there are no hydraulic compensators, the gaps are adjusted manually, it works noisily on the “cold”, it is demanding on the quality of engine oil. I have a Kia Sorento 3.5L as standard. Mileage 210 thousand, recently began to add oil. Before that, everything was in order with the lubricant consumption. In general, the engine does not cause much trouble, there were no critical breakdowns.
  3. Egor, St. Petersburg. I have a Kia Sorento with a 3.5 engine, exactly the same as the 6G74. I looked under the cover, everywhere there are Mitsubishi and Bosh marks on the sensors. Its main difference is that the block is made not of aluminum, but of cast iron. The motor cools down for a very long time, it is convenient in winter, it does not lose heat in 2 hours in the cold. The crossover has already traveled 250 thousand kilometers. There were problems only with the crankshaft sensor, I changed high-voltage wires and candles. There is also a belt, like a chain, to change with a roller after 120 tyk. There are no problems with topping up the oil, I'm surprised, although many say that this motor is characterized by an "oil burner".

Depending on the loads and quality of service, the 3.5-liter Kia Sorento engine is capable of traveling from 250 to 300 thousand kilometers. The undoubted advantage of the motor is its structural simplicity. It is easy to maintain and repair.

KIA Sorento is valued for its unpretentiousness, reliable power units and tenacious suspension. The Korean crossover has been produced since 2002, during which time three generations of the model have been produced. Until 2010, Sorento for the Russian market was assembled at IzhAvto, then in Kazakhstan and at Avtotor in Kaliningrad.

Sorento engines

The first generation of the car was equipped with a 2.5-liter D4CB diesel engine, as well as G4JS, G6CU, G6DB gasoline engines. The volume of the G4JS gasoline engine is 2.4 liters, and the power is 139 liters. with. G6CU - 3.5-liter unit with a capacity of 195 liters. with. It was replaced in 2006 by a 3.3-liter G6DB gasoline engine with a capacity of 247 hp. with.

The second generation of the model, which has been produced since 2009, was equipped with a 2.4-liter G4KE gasoline engine and a 2.2-liter D4HB diesel engine. Their power is 197 and 175 horsepower, respectively.

The third generation appeared in 2014. This is the KIA Sorento Prime. A D4HB diesel engine with a capacity of about 200 hp is available for the crossover. with., as well as G4KE for 188 liters. with. The line was supplemented by a 3.3-liter G6DB gasoline unit with 250 hp. with.

Sorento engine breakdowns

KIA Sorento gasoline engines are durable and rarely cause problems for car owners. Although each of them has characteristic weaknesses, certain features. All gasoline engines, starting with and ending with the G6DB, are ordinary aspirated engines that consume from 12 liters per 100 km in the city.

The pioneer G4JS on the Sorento 2.4 “digests” even domestic A-92 gasoline. It is prone to overheating in the winter season, which is due to the malfunctioning of the thermostat. The dynamics of a crossover with a 2.4-liter gasoline engine is mediocre. And with serious runs, over 200 thousand km, oil consumption begins. Of the features, it is worth noting the complex shaft drive, which includes balanced counterweights and requires competent maintenance.

More powerful versions of the G6CU and G6DB are equipped with a CVVT system and individual ignition coils, which are operated without problems in Russian conditions, despite the poor quality of gasoline. These engines are gluttonous. The 3.5-liter G6CU has a more outdated design and has proven itself well on the old Pajero. G6DB runs, depending on the quality of service and loads, from 300 thousand km. Then there is increased oil consumption, speed drops, increased noise. Sometimes owners of Sorento with a G6DB engine complain about floating faults. For example, from time to time the Check Engine error lights up, the idle speed increases. The problem lies in a faulty throttle assembly.

But not all Sorento engines are worthy of praise. So, the 2.5 CRDi D4CB engine, which was installed on the pre-styling versions of the first generation, is capricious in operation. With runs over 160 thousand km, starting on a cold one can become more difficult, interruptions in work begin, and the fuel system also presents unpleasant surprises. The nozzles are clogged with metal impurities, and scuffs appear in the high-pressure fuel pump. Partially, these problems are solved on cars manufactured after 2006. Thanks to restyling, the power of the internal combustion engine increased to 170 hp. with. Engineers have provided a new design of nozzles and turbines. This resulted in not only positive, but also Negative consequences. There was a misunderstanding with the nozzles, or rather, their fasteners, which can break off at a run of over 100 thousand km.

In 2009, the KIA Sorento began to install the G4KE with a capacity of 175 hp. with. This is an analogue of the two-liter G4KD gasoline unit, the resource of which exceeds 250 thousand km. Among typical disadvantages increased noise, some car owners are faced with wear of liners that can turn, which will lead to jamming of the crankshaft. This, as a rule, only happens with very intensive use. After all, erosion of the surface material of the liner occurs.

The diesel KIA Sorento with the D4HB engine is very frisky when compared with its predecessor, which was equipped with a 2.5 CRDi engine. Adherents of dynamic driving may encounter an oil burner. But this is the exception rather than the established practice.

What additives will be useful for KIA Sorento engines and fuel system?

The D4CB in-line four-cylinder diesel engine with a turbine and direct injection system holds 8.5 liters of oil. And in the D4HB engine of the new KIA, 6.7 liters of oil. Owners of Sorento diesel crossovers with these engines can be given the following recommendations:

  • Reduce the frequency of maintenance from 15 thousand km to 7.5-10 thousand km. Timely maintenance will save the life of the engine.
  • Since the internal combustion engine is turbocharged, after driving at high speeds on the highway, do not immediately turn it off. Let the motor run a little. This will extend the life of the turbine.
  • For processing a 2.5 CRDi diesel engine marked D4CB, use additives and. Make a double treatment, each time pouring 8 liters of additive into the engine. You can read more about this here.
  • To process a modern diesel 2.2-liter D4HB engine, use an oil additive. After running 400–500 km, repeat the procedure.

The repair additive will build up a dense layer of cermet on the working surfaces of the engine and extend the life of the turbocharger. Double treatment gives the following results: reduced oil and fuel consumption, increased compression, easier start-up at sub-zero temperatures. But keep in mind that the performance of the engine also depends on the health of the fuel system, the quality of the diesel fuel used.

The weak point in the KIA Sorento 2.5 CRDi is the copper o-rings of the injectors. If they are not changed in a timely manner, the injectors will need to be repaired. They are also clogged with soot due to the use of low-quality fuels and lubricants. This is typical problem for most diesel vehicles that are operated in Russian conditions. Therefore, it is worthwhile to take a responsible approach to the choice of gas stations, and to increase the cetane index, add an additive to diesel fuel. This will reduce the load on the nozzles and prevent vanadium corrosion.

The maintenance schedule for gasoline KIA Sorento with G4JS, G6CU, G6DB, G4KE engines should also include preventive treatment with the RVS Master additive, which is simply added to the engine oil. This will fully preserve the performance of the engine, strengthen the friction units, and reduce the amount of noise and vibration.

KIA Sorento transmissions

The first generation Kia Sorento was equipped with a five-speed manual, as well as a four- and five-speed automatic. For the second generation of the crossover, a six-speed manual transmission and automatic transmission have been developed. The third generation of KIA Prime is equipped with only a six-speed automatic. Front- and all-wheel drive versions are available.

The four-speed automatic that was used on the first generation Sorento is the A44DE, made by the Japanese company Aisin. The components that fail during serious runs in the A44DE include an overrunning clutch, an oil pump, and a valve body. Later, instead of the outdated one, they began to use a more modern five-speed automatic transmission A5SR1 from Jatco.

Signs of breakdowns in the automatic transmission on the KIA Sorento can be considered jolts, kicks, vibrations, crunching when switching, howling and hum of the transmission. But the appearance of noise or knocking does not mean that serious repairs will be required, the replacement of the same valve body or oil pump. This will become clear only after a comprehensive diagnosis, troubleshooting.

If you want to extend the life of an automatic or manual transmission, use the RVS Master additive. For processing automatic transmission KIA Sorento is suitable. The additive is added directly to the oil, serves as the basis for the restoration of worn gears, bearings and other friction surfaces with a dense metal-ceramic layer.

But for the Sorento mechanics, you need or. The same compounds are used as an additive in the bridge and razdatka, which have characteristic weaknesses. For example, due to the wear of the stuffing box, moisture penetrates into the junction of the transfer case with the box, which provokes corrosion, failure of the main pair of the transfer case, the differential case in the transmission. This is a design flaw that the additive for the transfer case and bridge cannot solve. But on the other hand, she is able to restore worn-out friction surfaces, achieve easier and smoother operation of the transfer case, and eliminate the howl and rumble of the bridge.