Until recently, this car was considered in our country as a business card of successful and wealthy people, having managed to pass for a fashionable and very prestigious means of transportation. Moreover, the BMW X5 is not only stylish and expensive car. This model demonstrates ideal performance when it comes to riding disciplines. We note a feature that is standard for most BMW models - an emphasis on rear drive(on rear wheels accounts for about 62% of the torque). Not without other famous "proprietary" features, among which - powerful and at the same time smooth dynamics, especially noticeable when shifting gears. The car is extremely comfortable, has a high level of handling, is not afraid country roads No. medium level of difficulty "(but it's still better not to test the car with trips on complete off-road, it is not intended for this).
This model seems to hint to the driver: "Be active, aggressive, confident!". Conducive to such a driving style, the BMW X5 can quickly lose its condition if the driver actively exploits the car for several years after purchase (this approach is most pronounced among Americans who tend to buy a car on lease). This should be taken into account if you plan to buy a used BMW X5 (option in favor of cars that came from North America, profitable to do thanks to the current exchange rate- the difference between the "American" and "European" X5 can be up to $ 10,000!). However, with a careful and scrupulous approach, among specimens from America, you can also choose a good and not too “torn” car. Distinctive feature BMW X5, which came to us from Canada and the USA, is additional marking speedometer, indicating the speed of movement in miles / hour.
Body and suspension
BMW body X5 is highly durable and resistant to corrosion (of course, if the car has not had time to be a participant in a traffic accident with serious consequences). Unfortunately, cars of this model, restored after an accident, are on the secondary automotive market Moscow is quite a lot. Among the common shortcomings, an unreliable lock should be noted. tailgate(often loosened up for no serious reason). You should not ignore the problem, otherwise the neglect of repairs will sooner or later turn a comfortable car into a kind of analogue of a vacuum cleaner.
The reliability of the suspension of a car purchased on secondary market, largely depends on the driving style and accuracy of the previous owner. In practice, at least a third of the owners of newly bought used BMW X5s have to deal with the replacement of the stabilizer struts almost immediately, a quarter with the replacement of one or two ball joints with a lever. The lower control arms of the front part of the suspension can become no less of a problem - most likely, they will have to be changed pretty soon. Essentially, this consumable for most car owners of this model. Usually on powerful BMW modifications X5 lower arms need to be replaced after 20,000 kilometers, and after 60,000 kilometers the same fate awaits the upper arms rear suspension. Replacement cost lower arms front suspension is about 19,000 rubles, upper arms rear suspension - 21,500 rubles and more, and the cost of replacing the steering rack, which often starts knocking after the car has traveled about 80,000 kilometers, will be approximately 81,000 rubles.
Engines and transmissions
Let's talk about engines. Most successful options from the entire range offered by the manufacturer, petrol engines with a volume of 3 liters (with a power of 231 hp) and 4.4 liters (power - 282 hp) are presented. Other engines are less common, such as the 4.6-litre, 347 hp petrol engine developed in collaboration with Alpina. It is even rarer to find a diesel version of a car with a turbo engine on the market (the demand for it is extremely low).
Based on the characteristics of the car, a 4.4L V8 engine might seem the most appropriate. But only at first glance - over time, the super-powerful energy of such an engine begins to render not the most best impact on general state car. Constant exorbitant loads shorten his life: the severity of the engine causes the front suspension to wear out ahead of time, and excess torque (especially in combination with an active and aggressive driving style) can ruin an automatic transmission. Automation was installed on many BMW X5 with a 3.0-liter engine and on almost all of its powerful modifications.
V8 engines are often said to be finicky - far from any quality of fuel suits them. Compared to them, a three-liter engine may seem completely unpretentious, and it is easier to repair it due to the presence of more thoughtful technological approaches. Therefore, if you buy a used BMW X5, we recommend that you opt for this type of engine - it will not seem to you either low-power or phlegmatic. Still, the presence of 231 horsepower under the hood of a car allows you to accelerate the vehicle to a speed of 100 km / h in a matter of seconds (specifically, in 8.8 s). True, the oil will be consumed no less actively, respectively, it will have to be topped up by about 0.3-0.5 liters for every 1000 kilometers. Many owners of BMW cars are familiar with this feature of their "pets".
As practice shows, cars with a large engine (4.4 or 4.6 liters) are usually bought by people who have an active and assertive driving style - they operate the car “for wear and tear”. But cars with a three-liter engine are mostly chosen by calm, accurate and respectable drivers. They know how (and consider it necessary) to take care of their car, therefore, they are more likely to buy in good condition car of this particular modification. In addition, the BMW X5 with a 3L engine is not as expensive as the 4.4L version (primarily due to the difference in customs duties).
Problems
When buying a BMW X5, you should pay attention Special attention on his weak spots, which, first of all, include power windows. The protection of the drive cables is made of plastic, so power windows often fail even with a slight overload (for example, under the influence of negative temperatures). In such cases, it is necessary to change the entire drive mechanism completely. Negative temperatures can also be the cause of another common trouble that often occurs in winter time- freezing of condensate in the crankcase ventilation. Frozen condensate can knock out oil dipstick or entail even more serious problem– extrusion rear oil seal crankshaft by pumping oil.
Auto "stuffed" modern electronics that ensures the safety of the driver and passengers (Cornering Brake Control, Dynamic Stability Control, etc.), high level comfort in the cabin, easy navigation. Onboard network is reliable, but can be easily disabled by unauthorized intervention in its operation - for example, when connecting an alarm or speaker system non-professionals. It is better to entrust such manipulations to the employees of a specialized service center. The cost of a car is from 500,000 rubles.
Summary
In conclusion, it can be said that bmw car The X5 is a prime example of a prestigious and expensive vehicle(despite some criminal connotation of the existing image). The truth is found on the secondary BMW market X5 in excellent condition very difficult, since for the most part the owners of these cars prefer to conquer distances aggressively and assertively, squeezing all the juice out of the car. In order not to end up with such a “cake”, spare no effort or time to carefully check all car systems before accepting final decision about the purchase.
By the way, BMW X5 - typical example of how dark and hard-hitting it can be back side popularity. The theft of this car has long become widespread, and even the most modern and reliable security systems unable to ensure the safety of its owners. A typical BMW X5 theft scenario involves the use of a pistol or a knife placed on the driver's most vulnerable organs, as well as its subsequent "dropping" out of the car somewhere far from busy trails. It is simply impossible to completely protect a car from theft, however, you can try to minimize its probability by choosing a car of a low-key, unpopular shade of criminal elements (it is known that black and silver jeeps are the most popular among criminals).
IN this review showcasing BMW petrol and diesel engines that have been in use for the past 15 years. Due to the huge range of power units of the Bavarian company, we cannot cover all engines and their options. Nevertheless, we will dwell in detail on the most famous and popular motors.
BMW is one of the world's leading manufacturers, offering the most modern and advanced power units On the market. Therefore, you need to be prepared for large bills for maintenance and repairs. You don’t have to look far for examples - for many owners it comes as a surprise that the need to periodically replace the timing chain drive used in all modern BMW engines comes as a surprise. The chain and tensioner, as a rule, take care of about 200-300 thousand km. This creates noise, and the engine runs unevenly. To replace the timing chain, it is necessary to prepare about 20-30 thousand rubles. In the case of older instances, difficulties arise when trying to conduct overhaul– the materials used for the manufacture of cylinder liners do not allow their restoration.
What expenses await you after buying a used BMW depends on the condition of the car and the version of the engine under the hood. Our review will certainly help to make right choice.
Engine marking
German concern BMW has been one of the leaders in manufacturing for many years. automotive technology, parts and assemblies. BMW engines are no exception. The line of power units of this company is quite large. To identify a specific series of engines, letters are used:
- M - for standard serial motors;
- S - for sports engines motorsport;
- N - for modern engines new generation;
- P - for prototypes.
It is worth noting that the BMW engines used in the second generation X5 model are classified N, which indicates the use of innovations and the latest developments. Modern models The X5 is equipped with several types of supercharged gasoline and diesel engines.
Engine M21 2.5 liters (diesel) 82-91 (E28, E30)
M21 - 6-cylinder diesel engine - was the first diesel in the history of BMW. Production began in 1982 to equip the 524td in the newly introduced E28 body. M21 was equipped with a turbocharger, which allowed diesel version save the image dynamic machine common to all BMW models. With the release of the new E30 3 Series bodywork, the M21 has another use for the 324td.
In 1985, an attempt was made to produce an economical non-turbocharged version. But the leisurely 524d and 324d didn't sit well with buyers. The very next year, the production of naturally aspirated diesel engines was discontinued and never resumed.
M30 engine 2.5, 2.8, 3.0, 3.2, 3.5 liters
BMW Group poached Bernard Oswald from Ford to develop the second generation of six-cylinder engines in the mid-sixties. The first were six-cylinder engines with seven crankshaft bearings. They were used in the new E3 series sedans in 1968. The successful M10 formula was reapplied - cast iron block, aluminum head with chain drive camshaft. After 1972, the development took place under the control of Gustav Ederer and it was then that the first model with 4 valves appeared - M88
M30 engine - big 6 cylinder engine with an in-line arrangement of cylinders, which has modifications of 2.5, 2.8, 3.0, 3.2 and 3.5 liters of working volume. It can be found on the 5 Series (E12, E28 and E34), 6 Series (E24) and 7 Series (E23 and E32), as well as the famous BMW M1.
The engine turned out to be very successful, both in design and in survivability. Of course, partly the survivability of the engine was ensured by its big power. In view of the fact that more powerful engines and load less.
Only the M30B35 modification with a cylinder diameter of 93.4 mm was unsuccessful - it turned out to be too energy loaded. But do not confuse it with the M30B34, which was installed on almost all 3.5 liter cars.
M30 is an engine for quiet ride, he has too heavy a piston and too big moves piston, which prevent it from spinning quickly and create heavy loads on bearings (liners).
Also, due to the high mass piston system the engine is very demanding on oil if fed mineral oil and at the same time constantly keep it in the rev range of 4-6 thousand, after a few thousand you will have to grind the crankshaft. Only synthetic oil should be poured into this engine, and if you like to turn it, then on volumes of more than 2.8 liters, installation is required oil cooler.
On the other hand, the benefits of balance inline six And high power on low revs more than compensate for these shortcomings.
Also M30 - was the second and latest engine on which turbocharging was serially installed - turbocharged modifications of the M30 were used only in the 745i models in the E23 body. In fact, their volume was 3.2 and 3.4 liters, depending on the modification. But both options were marked M102. The power is the same - 252 hp. The main difference is the ignition and power system.
The engine was installed on cars of the third, fifth, sixth and seventh series.
3rd series:
E30 - 333i - 3.2. liters, with Motronic injection system. Supplied only in the UAE.
5th series:
E12 - 525 - 2.5 liters with carburetor, 528 - 2.8 liters. with carburetor and injector, 535i - 3.5 liters, only with an injector.
E28 - models 525i, 528i, and since 85 535i and M535i. Starting with the E28 body, only injection modifications were installed.
E34 - 530i - 3 l., 535i - 3.5 l. Also, only the injector with the Motronic injection system and with the crankshaft position sensor located on the crankshaft damper, and not on the gearbox.
6th series:
E24 - 628CS with carburetor and injection (628CSi), 633CSi, 635CSi - injector only. 
7th series:
E23 - 728 injector / carburetor, 730 carburetor, 732i / 733i, 735i, 745i - a turbocharged version of the engine was installed on the 745i model.
E32 - 730i, 735i - 3.0 and 3.5 liters, respectively.
BMW M47 - inline 4-cylinder diesel engine
First released in 1998, the M47D20 delivered 100 kW (136 hp) of power and 280 Nm (207 ft lb) of torque in the 320d/520d variant, and 85 kW (114 hp) with 265 Nm (195 ft lb) ) performed by 318d. All M47 engines have one valve and one swirl injector per cylinder, each of which can increase performance in various conditions. An indirect block was installed on the M47diesel fuel injection with an engine capacity of 1951 cc.
Initially, thermostats were installed on all BMW engines of that time, which, when worn out, caused additional cooling engine, which worsened the performance of the engine in terms of fuel consumption. Subsequently, the BMW plant changed fuel system engine to a high-pressure single-row system.
The turbocharged BMW M47 diesel engine uses a Garrett turbocharger with variable geometry(VGT), also known as variable vane turbocharger. These early VGTs used until September 2003 vacuum system to control the drive, which in turn controls the movement of the blade. Over time, drive vacuum tubes are prone to breakage, which can affect the operation of the entire turbo. Later turbochargers (after September 2003) are electronically actuated and failure can result in costly replacement of both the compressor and the entire drive. Fortunately, in some cases the actuator can be repaired separately without replacing the turbocharger.
To help keep the turbocharger and engine running perfect condition, are obligatory regular replacements synthetic oil and filters after a run of 7000–8000 km. Also needed regular check plastic parts oil separator or replace them every 12-18 months in order to avoid clogging and an increase in internal pressure.
If you have a turbocharger failure on this engine, and the scan cannot reveal specific error codes, then you can check all connections vacuum tube and the state of the vacuum tank itself. To do this, simply disconnect the vacuum hose.
The whistle of the engine turbine is another unpleasant sign inherent in this engine. Some turbos whistle more than others and this may just be a sign of general engine wear. If the sound resembles a police siren, then we advise you to check the gap on the turbine shaft as soon as possible.
To gain access to the compressor shaft while the engine is warm, remove the air duct and pinch the shaft between your thumb and forefinger. This way you check how much the bearings “float”, both from side to side (radial clearance) and along the axis (axial play). Axial play is typically between 0.025-0.1 mm and can hardly be felt, radial misalignment is typically between 0.3-0.6 mm. For more accurate measurements, you will need a dial indicator. But if the "floating" movements seem excessive, then an immediate repair is most likely required. 
unusual high flow oil combined with blue smoke from the exhaust pipe can be a symptom of worn seals. In very rare cases, the engine may start to run at own oil, which will cause columns of smoke. If this happens, turning off the ignition may be pointless, since it burns engine oil which can lead to engine seizure. Try braking the car with the clutch without taking your foot off the brake.
The M47 motor for its time was the best in terms of technical characteristics in its class. However, it has a number of features that entail an increase in maintenance costs. However, compared to its successor N47, it is less problematic and overall a better engine. It can be argued that this is a very successful motor, although relying on low price operation is not required.
BMW engine: diesel unit
The small D in the BMW model name means significantly great results. Every BMW diesel engine, whether four, six or eight cylinders, guarantees refined power and superior fuel efficiency. Improved turbochargers, redesigned turbine geometry and direct injection system have given the diesel engine a new look.
The price of such innovations: 306 liters. With. power at a flow rate of not more than 7.5 liters per 100 km. Acceleration to hundreds is only 6.6 seconds. No matter what engine is installed in the BMW X5, there is one thing you can always be sure of - maximum comfort driving combined with maximum performance.
TOP 5 BEST BMW ENGINES
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In Russia, the BMW X5 is currently sold with gasoline and diesel engines supercharged. Today we will talk about the technical characteristics of these motors. Gasoline engines X5 have a volume of 3 and 4.4 liters, it is an in-line 6-cylinder unit and a more powerful V8. Diesel engines BMW X5 have one volume of 3 liters, but all units different power.
There are three versions of supercharged, double and even triple supercharged diesels. It is the triple-charged diesel that is the main technical novelty X5 third generation. The cylinder blocks of all power units are made of aluminum-magnesium alloy. The timing drive traditionally uses a chain. In the gasoline N55B30 with a working volume of 3 liters there is one turbine, on the performance of which the final power of the power unit depends. The variable valve timing system is on two camshafts(Bi-VANOS). There is a system for changing the height of the valves Valvetronic III and direct injection turbocharged fuel. Supercharging is handled by a twin-scroll Borg Warner B03. The more powerful BMW X5 engine (engine model N63B44) with a volume of 4.4 liters in the V8 configuration has a double boost. Further specifications petrol engines BMW X5.
BMW X5 3.0 gasoline engine (306 hp) characteristics, fuel consumption
- Working volume - 2979 cm3
- Number of cylinders - 6
- Number of valves - 24
- HP power (kW) - 306 (225) at 5800-6400 rpm
- Torque - 400 Nm at 1200-5000 rpm
- Maximum speed - 235 km / h
- Acceleration to 100 km / h - 6.5 seconds
- Fuel consumption in the city - 11.2 liters
- Fuel consumption in combined cycle– 8.5 liters
- Fuel consumption on the highway - 6.9 liters
BMW X5 4.4 gasoline engine (450 hp) characteristics, fuel consumption
- Working volume - 4395 cm3
- Number of cylinders - 8
- Number of valves - 32
- HP power (kW) - 450 (330) at 5500-6000 rpm
- Torque - 650 Nm at 2000-4500 rpm
- Timing Type/Timing Drive - DOHC/Chain
- Acceleration to 100 km / h - 5 seconds
- Fuel consumption in the city - 14 liters
- Combined fuel consumption - 10.4 liters
- Fuel consumption on the highway - 8.3 liters
Diesel power units BMW X5, the N57D30 turbodiesel, the N57D30 biturbodiesel and the unique N57S tri-turbodiesel have a single displacement of 2993 cm3. These are in-line 6-cylinder units with a capacity of 249, 313 and 381 Horse power. Structurally, they are similar, the only difference is in the pressurization device. Further characteristics of these power units.
BMW X5 3.0 diesel engine (249 hp) characteristics, fuel consumption
- Working volume - 2993 cm3
- Number of cylinders - 6
- Number of valves - 24
- HP power (kW) - 249 (183) at 4000 rpm
- Torque - 560 Nm at 1500-3000 rpm
- Timing Type/Timing Drive - DOHC/Chain
- Maximum speed - 230 km / h
- Acceleration to 100 km / h - 6.8 seconds
- Fuel consumption in the city - 7 liters
- Fuel consumption on the highway - 5.7 liters
BMW X5 3.0 diesel engine (313 hp) characteristics, fuel consumption
- Working volume - 2993 cm3
- Number of cylinders - 6
- Number of valves - 24
- HP power (kW) - 313 (230) at 4400 rpm
- Torque - 630 Nm at 1500-2500 rpm
- Timing Type/Timing Drive - DOHC/Chain
- Maximum speed - 236 km / h
- Acceleration to 100 km / h - 5.9 seconds
- Fuel consumption in the city - 7.1 liters
- Combined fuel consumption - 6.2 liters
- Fuel consumption on the highway - 5.8 liters
BMW X5 3.0 diesel engine (381 hp) characteristics, fuel consumption
- Working volume - 2993 cm3
- Number of cylinders - 6
- Number of valves - 24
- HP power (kW) - 381 (280) at 4000-4400 rpm
- Torque - 740 Nm at 2000-3000 rpm
- Timing Type/Timing Drive - DOHC/Chain
- Maximum speed - 250 km / h
- Acceleration to 100 km / h - 5.3 seconds
- Fuel consumption in the city - 7.6 liters
- Combined fuel consumption - 6.7 liters
- Fuel consumption on the highway - 6.2 liters
Diesel engines X of the fifth today are not inferior in their dynamic characteristics gasoline units, but at the same time they have much more torque. And most importantly, fuel consumption diesel versions The BMW X5 is substantially smaller. The difference in fuel consumption in reality can be up to two times.
The motor of the N55 family is latest development BMW specialists, which replaced the N52 and M42 series engines. These BMW engines are renowned for their reliability and have won the prestigious Motor of the Year award more than once.
This modification of the engine is designed for use with powerful sports sedans and provides cars with excellent dynamics and excellent fuel efficiency.
- Motor BMW series The N55 was developed from a six-cylinder block that used the BMW M52 engine. The motor received additional turbochargers, which made it possible to significantly increase its power.
- We also note the improved, in comparison with the M 42 engines, environmental performance, which was achieved through the use of a gas recirculation system.
- BMW is successfully pursuing a downsizing strategy for its powertrains to reduce vehicle weight without loss of power and improve fuel efficiency.
- To date, all BMW gasoline engines installed in older BMW models use turbochargers. The N55 engine, like the first modifications of the M10 engines, received a compact turbine, which made it possible to significantly increase the engine power. This power unit is characterized by increased requirements for after-sales service. BMW oil and all used technical fluids must comply with the manufacturer's recommendations.
Specifications
Three-liter turbocharged engine The BMW N55 series has the following specifications:
| PARAMETER | MEANING |
|---|---|
| Release years | 2009 to present |
| Supply system | injector |
| Type | in-line |
| Working volume | 3.0 liters |
| Power, l. s./r.min | 306/5800-6000 |
| 320/5800-6000 | |
| 326/5800-6000 | |
| 340/5800-6000 | |
| 360/5800-6000 | |
| 370/6500 | |
| Weight | 135 kg |
| Torque, Nm/rpm | 400/1200-5000 |
| 450/1300-4500 | |
| 450/1300-4500 | |
| 450/1300-4500 | |
| 465/1350-5250 | |
| 465/1400-5550 | |
| Number of valves per cylinder | 4 |
| Fuel consumption, l/100 km | 11.6 in city mode |
| 6.3 track | |
| 8.2 mixed mode | |
| Fuel | 95 |
| Oil | 5W-30 and 5W-40 |
The engine is installed on the entire model BMW series, including X-series crossovers.
Description
This modification of engines combines excellent dynamic characteristics, is distinguished by reliability, which invariably affects the popularity of the power unit.
According to statistics, on BMW model The 535, which powers the N55, accounts for about a third of fifth generation sales.
This motor received the latest Bavarian development - a twin-scroll supercharger, which is a turbine with two scrolls with different diameters, actively using exhaust gases. German engineers managed to completely eliminate the effect of turbo lag, so the BMW engine already has thrust from the lowest revs.
This power unit, as well as the M42 motor model, is equipped with various types transmissions. It can be either a six-speed mechanics or whole line automatic boxes. The most popular, along with the BMW N55 engine, were eight-speed automatic boxes, which are characterized by smooth operation and provide the car with excellent dynamics.
BMW engines are made of an all-aluminum alloy, which makes the powertrain lightweight. At the same time, the BMW engine is not afraid of overheating and can operate in extreme temperature conditions.
Aluminum began to be used on the M20 series engines, and the BMW M40 engine became the first all-aluminum mora. Another significant advantage of using such metal alloys in BMW engines is their lightness, which made it possible to reduce the weight of the engine by 40 kilograms compared to the M42 engine.
We also note the use of the Valvetronic system on the N55, which changes the valve lift height, which in turn allows you to optimally control the operation of the power unit.
For the first time, this system began to be used on the M40 series. At low revs, the intake valves rise by minimum height, which optimizes the performance of the BMW engine and reduces fuel consumption. But as soon as the driver presses down on the gas pedal, the Valvetronic system increases the speed intake valves, which will increase the torque and improve the dynamics of the car. This system smeared BMW oil under high pressure and requires appropriate maintenance.
In 2012, it developed upgraded version this BMW engine, which received the N55HP index. The new BMW engines received a reshaped exhaust manifold and other small changes that increased power to 315 horsepower.
Moreover, the maximum torque is already reached from 1300 rpm. Similar low-end traction performance is typical for diesel engines and power units of the M10 series, and the BMW N55HP engine itself provides excellent dynamic performance. New motor received a modified lubrication system in which BMW oil moves when high blood pressure in system.
Faults
| MALFUNCTION | CAUSE |
|---|---|
| The appearance of vibrations of the BMW engine on Idling when the car warms up. | Misfires appear, which is characteristic of coked oil BMW hydraulic compensator. When a knock appears in the engine, the repair consists in ultrasonic cleaning of the nozzles and the hydraulic compensator. |
| Increased oil consumption. | There can be many reasons for such a problem. For example, a malfunction of the ventilation system crankcase gases. A similar problem is typical for motors starting with the M20 series. |
| Difficulty starting the engine at low temperatures | Faulty glow plugs or glow plug relay. |
| The power plant does not develop full power | Insufficient fuel supply; |
| The air filter is clogged; | |
| Leakage of intake and recirculation systems; | |
| Malfunction (violation) of the gas distribution mechanism; | |
| Turbocharger malfunctions; | |
| Clogging of the active zone of the neutralizer. | |
| The engine smokes | Leakage of the intake system from the turbocharger to the intake pipe; |
| Air filter clogged; | |
| Increased oil level in the crankcase; | |
| Breakage, coking and "occurrence" of piston rings; | |
| The ingress of coolant into the engine cylinders. | |
| Low (no) oil pressure | Low oil level; |
| Clogged oil filter; | |
| Increased clearances in the oil pump; | |
| Worn oil pump drive gears. | |
| Increased oil consumption | Clogged oil separator; |
| Wear or scoring of KShM parts; | |
| Long-term operation of the motor at minimum speed; | |
| Clogged air filter. | |
| Motor takes a long time to warm up | The thermostat is faulty; |
| Faulty coolant temperature sensor. |
tuning
In the manufacture of motors of the M50 and N55 series, German engineers used the latest technological advances, which allowed them to design and manufacture a powerful power unit that produces more than a hundred horsepower from one liter of volume.
This is a truly grandmaster milestone, which is typical only for the most powerful and high-tech engines.
If we talk about the possibility of tuning this engine, then it should be noted that the possibilities for increasing power are significantly limited. This can be explained by the fact that already initially the engineers were tasked with making the most powerful BMW engines. And that is why any work to increase the power of the M52 and N55 motors can lead to a decrease in the reliability of the power unit.
It is only possible to replace the standard exhaust system in the M50 and N55, which allows you to add about a dozen horsepower.
- We can recommend installing an exhaust from the M52 and M5, which gives the three-liter engine a great sound and increases its power. Installing a new exhaust from the M5 or from the 550 model forces the replacement of the bumper with exhaust pipes.
- Installing a new engine control unit allows you to reconfigure the operating modes of the power unit, adding about 30 more horsepower to it. Such tuning is simple and has affordable price. At the same time, it must be said that such chip tuning significantly reduces the life of the motor, especially for the turbine, which can break down under increased load. As a result, every 100-120 thousand kilometers an expensive overhaul is required.
- Extreme tuning programs to increase the power of the N55 engine involve the installation of a new turbine from the M 42 engines, which provides the highest possible pressure. Similar works allow you to get about 100-150 additional horsepower. In terms of dynamics, such a formed N55 will be close to the older eight-cylinder model with a volume of 4.4 liters. However, the reliability indicators and the resource of the forced engine are significantly reduced.
In Russia, the BMW X5 is currently sold with supercharged gasoline and diesel engines. Today we will talk about the technical characteristics of these motors. The X5 petrol engines have a volume of 3 and 4.4 liters, this is an in-line 6-cylinder unit and a more powerful V8. Diesel bmw motors X5 have one volume of 3 liters, but all units have different capacities. There are three versions of supercharged, double and even triple supercharged diesels. It is the triple supercharged diesel that is the main technical innovation of the third generation X5.
The cylinder blocks of all power units are made of aluminum-magnesium alloy. The timing drive traditionally uses a chain. In the gasoline N55B30 with a working volume of 3 liters there is one turbine, on the performance of which the final power of the power unit depends. The variable valve timing system is on two camshafts (Bi-VANOS). There is a Valvetronic III valve lift system and direct fuel injection with a turbocharger. Supercharging is handled by a twin-scroll Borg Warner B03. The more powerful BMW X5 engine (engine model N63B44) with a volume of 4.4 liters in the V8 configuration has a double boost. Further technical characteristics of petrol engines BMW X5.
The electronic engine control system allows not only to determine the parameters of the power unit, but also to change them. You can increase the power of a BMW engine using chip tuning. In St. Petersburg, this can be done at the Accessavto tuning studio. The process of changing the factory engine management program will increase power and improve dynamic performance. We read about the standard characteristics of the X-fifth engines below.
BMW X5 3.0 gasoline engine (306 hp) characteristics, fuel consumption
- Working volume - 2979 cm3
- Number of cylinders - 6
- Number of valves - 24
- HP power (kW) - 306 (225) at 5800-6400 rpm
- Torque - 400 Nm at 1200-5000 rpm
- Maximum speed - 235 km / h
- Acceleration to 100 km / h - 6.5 seconds
- Fuel consumption in the city - 11.2 liters
- Combined fuel consumption - 8.5 liters
- Fuel consumption on the highway - 6.9 liters
BMW X5 4.4 gasoline engine (450 hp) characteristics, fuel consumption
- Working volume - 4395 cm3
- Number of cylinders - 8
- Number of valves - 32
- HP power (kW) - 450 (330) at 5500-6000 rpm
- Torque - 650 Nm at 2000-4500 rpm
- Timing Type/Timing Drive - DOHC/Chain
- Acceleration to 100 km / h - 5 seconds
- Fuel consumption in the city - 14 liters
- Combined fuel consumption - 10.4 liters
- Fuel consumption on the highway - 8.3 liters
Diesel power units BMW X5, the N57D30 turbodiesel, the N57D30 biturbodiesel and the unique N57S tri-turbodiesel have a single displacement of 2993 cm3. These are in-line 6-cylinder units with a capacity of 249, 313 and 381 horsepower. Structurally, they are similar, the only difference is in the pressurization device. Further characteristics of these power units.
BMW X5 3.0 diesel engine (249 hp) characteristics, fuel consumption
- Working volume - 2993 cm3
- Number of cylinders - 6
- Number of valves - 24
- HP power (kW) - 249 (183) at 4000 rpm
- Torque - 560 Nm at 1500-3000 rpm
- Timing Type/Timing Drive - DOHC/Chain
- Maximum speed - 230 km / h
- Acceleration to 100 km / h - 6.8 seconds
- Fuel consumption in the city - 7 liters
- Fuel consumption on the highway - 5.7 liters
BMW X5 3.0 diesel engine (313 hp) characteristics, fuel consumption
- Working volume - 2993 cm3
- Number of cylinders - 6
- Number of valves - 24
- HP power (kW) - 313 (230) at 4400 rpm
- Torque - 630 Nm at 1500-2500 rpm
- Timing Type/Timing Drive - DOHC/Chain
- Maximum speed - 236 km / h
- Acceleration to 100 km / h - 5.9 seconds
- Fuel consumption in the city - 7.1 liters
- Combined fuel consumption - 6.2 liters
- Fuel consumption on the highway - 5.8 liters
BMW X5 3.0 diesel engine (381 hp) characteristics, fuel consumption
- Working volume - 2993 cm3
- Number of cylinders - 6
- Number of valves - 24
- HP power (kW) - 381 (280) at 4000-4400 rpm
- Torque - 740 Nm at 2000-3000 rpm
- Timing Type/Timing Drive - DOHC/Chain
- Maximum speed - 250 km / h
- Acceleration to 100 km / h - 5.3 seconds
- Fuel consumption in the city - 7.6 liters
- Combined fuel consumption - 6.7 liters
- Fuel consumption on the highway - 6.2 liters
Diesel engines X of the fifth today are not inferior in their dynamic characteristics to gasoline units, but at the same time they have much more torque. And most importantly, diesel fuel consumption BMW versions X5 is significantly smaller. The difference in fuel consumption in reality can be up to two times.
