V this review petrol and diesel engines are available BMW engines used over 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 powertrains 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.

Gasoline engines

1.8 i N42, 2.0 i N46

Short description:

Atmospheric

4-cylinder

16 valve

Multipoint fuel injection (ported)

The N42 and N46 engines, produced from 2001 to 2007, are among the most popular four-cylinder BMW units in the world. secondary market, mainly due to the "troika" E46 and the Compact version based on it. These motors can be found in the "ones" E87 and "triples" E90 of the initial production period. It is believed that a BMW with a 4-cylinder engine is not a real BMW. But honestly, these small engines are unique technical masterpieces. Both are equipped with a timing chain drive, both have the Double VANOS system - a system for adjusting the valve timing of the intake and exhaust valves, as well as the Valvetronic system - an original solution for smoothly changing the height of the intake valves, replacing the usual throttle operation.

The main advantage of having the Valvetronic system is the significantly lower fuel consumption (1.5 l/100 km on average) compared to conventional engines.

Interestingly, the N42 and N46 engines perfectly perceive the transition to work on liquefied gas. The main thing is the right choice and professional installation of LPG.

Well-maintained 4-cylinder engines are low maintenance. Picking up a copy from real mileage less than 200,000 km, you will be satisfied with your choice.

Faults due to LPG

Despite the fact that motors perceive the transition to liquefied gas operation without consequences, an unprofessional approach to selection and installation leads to sad consequences. Valvetronic does not tolerate amateurism, the result of which is damage to the cylinder head and burnt valve seats. Before buying a car with LPG, you need to visit a car service and check the condition of the engine.

Specifications 1.8 i N42, 2.0 i N46

Versions	N42-115	N46-143	N46-150
injection system	distributed	distributed	distributed
Working volume
Cylinder arrangement / number of valves
Max power
Max Torque
Timing drive

Application:

BMW 1 Series E87 11.2003- 11.2007

BMW 3 Series E46

BMW 3 Series E90 11.2005-11.2008

Grade: ☆☆☆☆☆

A very successful engine - one of the few BMWs that is suitable for the average car enthusiast with modest financial capabilities.

Alternative

Alternative for engines N42 and N46 diesel M47, but find it in good condition not so easy.

1.6i N43 B16, 2.0i N43 B20

Short description:

Atmospheric

4-cylinder

16 valve

Multipoint fuel injection (direct)

Compact and middle class models

In 2006 and 2007 for BMW lovers began new era. It was then that the German manufacturer updated the line of engines by introducing completely new motors into it. One of them is two modified engines: a 1.6-liter with 122 hp. - N43 B16 and 2-liter with 143 and 170 hp (N43 B20). Both engines received direct fuel injection. This means lower fuel consumption while maintaining high performance. But on the other hand, it means higher cost possible repair and the difficulty of installing LPG.

Operation and typical faults

N43 series engines are considered one of the most reliable among modern BMW engines. They are ideal for those who have their eye on the BMW E90 and usually don't do many miles in a year. But still problems occur.

Valve train chain

There are cases premature wear timing chains. The problem concerns, first of all, cars assembled before 2009.

uneven work

Failure of the ignition system due to failure of the coils. Symptoms are accompanied by the illumination of the engine malfunction indicator.

Refusal fuel pump

This malfunction often worries 6-cylinder engines, which will be described below. But sometimes fuel pump failure is encountered in earlier instances of 4-cylinder engines. Warning symptoms are starting problems and lack of traction in the upper rev range.

Technical data 1.6 i N 43 B 16, 2.0 i N 43 B 20

Versions	N43-122	N43-143	N43-170
injection system	direct	direct	direct
Working volume	1597 cm3	1995 cm3	1995 cm3
Cylinder arrangement / number of valves	R4/16	R4/16	R4/16
Max power	122 HP/6000	143 HP/6000	177 HP/4000
Max Torque	160 Nm/4250	190 Nm/4250	350 Nm/1750-3000
Timing drive	chain	chain	chain

Application

N43 series engines were used in all BMW models small and middle class. The 1.6-liter engine was also used in Mini and Peugeot.

BMW 1 Series E87: 09.2006-09-2012

BMW 1 Series F20: from 11.2010

BMW 3 Series E90: 02.2006-12.2011

BMW 3 Series F30: from 10.2011

Mini: from 10.2006

Peugeot 207: 02.2006-03.2012

Peugeot 208: from 03.2012

Peugeot 308: from 09.2007

Grade: ☆☆☆

If someone plans to install on this motor gas equipment, then it is better to pay attention to the older N42 and N46 engines. Otherwise, it's a very good choice.

Alternative

A direct alternative to this engine can be a 4-cylinder diesel N47.

2.0i - 2.8i M52

Short description:

Atmospheric

6-cylinder

24 valve

Models of the middle, upper class and sports

Engines of the M52 family debuted in 1994 on BMW 3 series E36 cars. M52 is a further development of the reliable and powerful M50. The main difference is the use of an aluminum block, which reduced the weight by almost 20 kg. Together with lighter connecting rods, a chain tensioner and an exhaust manifold, the new engine is almost 30 kg lighter than its predecessor.

The M52 engine family is represented by engines with a working volume of 2.0, 2.5 and 2.8 liters, developing 150, 170 and 193 hp. respectively. S52 with 243 hp 3.2-liter, installed on the M3 and intended for the North American market, is closely related to the M52.

In the BMW 3 Series E46, released in 1998, appeared updated engine M52TU. It is distinguished by the use of a variable valve timing system for intake and exhaust valves (Double Vanos system). In the first engines, the valve timing was changed only on the intake shaft. Engine power has not changed, but performance at low and medium speeds has improved.

Operation and typical faults

Engines of the M52 family are classics of the genre. It enjoys a good reputation for being durable and reliable, but does not tolerate harsh use and careless maintenance.

Breakdown of the cylinder head gasket and cracks in the cylinder head

Inline six-cylinder engines are sensitive to overheating: the long head can burst. At best, it will pierce the cylinder head gasket. Troubles contribute frequent problems with cooling system pump and radiator fan drive. Ignoring the symptoms of overheating can lead to disastrous results, when the most effective and cost-effective way to repair is to purchase another motor in working order.

Camshaft Position Sensor Malfunctions

The defect is manifested by uneven operation of the engine and sluggish unwinding of the engine after warming up. Failure can also be accompanied by difficult starting - you have to turn the starter for a long time. Inexpensive analogues will cost less than 1,500 rubles, Siemens products are more expensive - about 3,000 rubles. Replacement is not difficult even for a non-specialized mechanic.

High oil consumption

In old age, the degree of wear of most engine elements increases. A considerable contribution to the oil consumption is made by exhausted valve stem seals.

Ignition coils

One coil for the M52 engine costs about 2000 rubles.

Application

Engines of the M52 family were installed as in small cars Series 3 and Z3, and in the flagship BMW 7 Series.

BMW 3 Series E36: ​​04.1994-08.2000

BMW 7 Series E38: 08.1995-11.2001

BMW 5 Series E39: 11.1995-09.2000

BMW Z3: 04.1997-01.2003

BMW 3 Series E46: 02.1998-05.2002

Rating: ☆☆☆☆

In principle, each of the M52 engines is worthy of recommendations. The 2.8-liter version of the engine is in the greatest demand. It is considered the most reliable and guarantees satisfaction from operation. However, finding a well-groomed specimen is becoming more and more difficult every day.

Alternative

In the case of older generation models, in particular the BMW 3 E36 series, you can choose the M50.

2.2, 2.5 and 3.0M54

Short description:

Atmospheric

6-cylinder

24 valve

Multipoint fuel injection

M54 series gasoline engines are some of the best BMW inline-sixes. They got under the hood of many Bavarian models.

The R6 M54 debuted in 2000 in three versions: 2.2, 2.5 and 3.0. All variants received a variable valve timing system for intake and exhaust valves (Double Vanos).

Owners praise not only the pleasant sound and good performance of engines (especially 2.5 and 3.0), but also reliability. However, don't rely on fuel economy.

The M54 engine disappeared from the offer list in 2007, along with the BMW E46 convertible.

Operation and typical faults

Serious malfunctions are rare and most often occur due to very long mileage, careless Maintenance and unprofessional repairs.

The only problem is excessively high oil consumption. Losses occur as a result of oil waste and due to the specific design of the oil separator, which leads to clogging of the crankcase ventilation valve. As a result, excess pressure in the engine increases, which contributes to even higher oil losses.

Application

BMW 5 Series E60

BMW X3 E83 series: 2.5 (2004-2006) and 3.0 (2003-2006)

BMW X5 E53 series

Rating: ☆☆☆☆

M54 is characterized by high strength and durability. Simple construction and great popularity guarantee reasonable repair costs. The main thing is to avoid instances with high mileage.

2.5 i, 3.0 i N52

Short description:

Atmospheric

6-cylinder

24 valve

Multipoint fuel injection

Models of the middle, upper class, SUVs and sports

The N52 engine family debuted in 2004 with a 3-litre engine in the BMW 630i E63. In 2005, its modification appeared with a working volume of 2.5 liters. To save weight, the engine block is made of an aluminum-magnesium alloy. The Valvetronic valve stroke control system and the Double Vanos valve timing system are also used here. The engine that replaced it in 2011 is a direct successor to the N52, but with a turbocharger and 4-cylinders - a typical example of downsizing.

Operation and typical faults

Noise of hydraulic lifters

The problem primarily concerns engines manufactured at the initial stage of production - before November 2008. Subsequent engines received a redesigned cylinder head.

Coolant pump failure

There are failures in the operation of the electric pump of the cooling system, leading to serious consequences. Replacement costs about 15,000 rubles.

Application

BMW 1 Series E87: 03.2005-09.2011

BMW 3 Series E90: 01.2005-12.2011

BMW 5 Series E60: 07.2005-03.2010

BMW 6 Series E63: 04.2004-07.2007

BMW 7 Series E65: 03.2005-03.2008

BMW X1 E84: 10.2009-10.2010

BMW X3 E83: 04.2009-09-2011

BMW X5 E70: 02.2007-03.2010

Rating: ☆☆☆

The use of a system for smoothly changing the stroke of the valves can significantly reduce fuel consumption. High power and excellent sound are other advantages of BMW six-cylinder engines.

Alternative

Slightly older M54 2000-2006 production.

Diesel engines

2.0d M47

Short description:

Turbocharging

4-cylinder

16 valve

injection system common rail

The power unit with the code designation M47 is a 2-liter diesel engine used from 1998 to 2007. Interestingly, two generations of 2-liter diesel engines are hidden under the M47 code: the first generation - until 2003 with a working volume of 1951 cm3, and since 2001 a new generation with a working volume of 1995 cm3. The first M47 was with a high-pressure fuel pump, and the second with a Bosch Common Rail injection system.

The 2-liter M47 can be found both in models marked "18", for example, the BMW 318d, and marked "20", for example, the BMW 320d. With the same working volume, they differ in equipment and developed power. M47 1951 cm3 was also used by the English Rover in Land Rover Freelander, MG ZT and Rover 75.

Along with the increase in capacity, the engine received balancer shafts. The turbocharger, instead of vacuum control, acquired a more accurate electric one. A good torque curve has been achieved through the use of variable geometry intake manifold: dampers regulate the air flow depending on the engine speed. Each version of the M47 has a timing chain drive, and in this series of engines, unlike the N47 receiver, it is placed in an easily accessible place - in front of the engine. All M47s have a dual mass flywheel, and the latest examples can be equipped with a DPF filter.

Operation and typical faults

The M47 engine is technically advanced and sometimes causes difficulties for mechanics with the correct conclusions when diagnosing. However, compared to the N47's successor, it should be seen as less problematic and more successful motor. Versions with power from 143 hp provide excellent performance, and at the same time quite economical. For example, a 163-horsepower 320d consumes an average of about 6.6 l / 100 km.

Destruction of the intake manifold flaps

This is a typical failure of many BMW diesel engines, including those with six cylinders. The dampers responsible for changing the geometry of the intake manifold can become loose and fly off the axles, hitting directly into the engine. This leads to damage to the cylinder head (destruction of the combustion chambers), the turbocharger, and sometimes the pistons.

Premature failure of the turbocharger

Longer oil change times are often blamed for low turbocharger life. To prolong its life, it is better to shorten the prescribed oil change intervals. Since the turbocharger is electrically controlled, not all turbine remanufacturers can adjust it correctly after repair. However, it is technically possible.

Pulley wear

The source of suspicious knocks from the engine is often a delaminated damper pulley responsible for the drive attachments. However, sometimes a dual-mass flywheel located on the other side of the engine makes a similar noise.

Application

In view of the large power range, the M47 series engine was installed in the compact BMW 1 series, the X3 crossover and even in the BMW 5 series.

BMW 120d E87: 11.2003-03.2007

BMW 320d E46: 04.1998-02.2005

BMW 320d E90: 01.2005-03.2007

BMW 520d E39: 02.2000-06.2003

BMW 520d E60: 07.2005-03.2010

BMW X3 E83: 10.2004-12.2006

land Rover Freelander: 11.2001-10.2006

MG ZT: 2001-2005

Rover 75: 02.1999-05.2005

Rating: ☆☆☆

Among similar turbodiesels of its age, the M47 excelled technically and in terms of performance. This is a very successful engine, although you should not count on the cheap cost of operation. It has a number of technical solutions that require high maintenance costs. However, the engine cannot be described as very problematic.

Alternative

Among BMW diesel engines, in principle, large selection no, except perhaps for the 2-liter M47. The rest of the engines are much more powerful.

2.0d N47

Short description:

Turbocharging

4-cylinder

16 valve

Common rail injection system

Compact, mid-range and SUV models

In March 2007, BMW launched a new generation of two-liter N47 diesel engines on the market. The design of the engine has changed fundamentally: the cylinder block is made of aluminum alloy, which saved 17 kg, the timing drive was moved from the front of the engine to the back - to the flywheel. Most of the engines in this series were equipped with a braking energy recovery system, the so-called Efficient Dynamics.

All N47 series engines from 163 hp have a piezoelectric Common Rail injection system with an operating pressure of 1800 - 2000 bar. More weak engines equipped with electromagnetic nozzles with a working pressure of 1600 bar. Since the new engine has more torque than the M47, the crankshaft had to be reinforced. Of particular interest are the 204-218 hp versions, which are supercharged sequentially with two different sizes of turbochargers. This is the most powerful 2-liter turbodiesel in the world. In 2013, the N47 appeared with a working volume of 1598 cm3 with a reduced pitch and cylinder diameter and a different block design. He received the designation 14d, and his power is 95 hp.

Operation and typical faults

The N47 diesel, in terms of performance, is very economical engine. Performance, minimal vibration and pleasant sound deserve high marks. Powerful torque already available from low speed, suggests that even large and heavy vehicles such as the 520d and X3 will not experience any problems with dynamics. The BMW 520d F10, weighing over 1600 kg, is content with an average of just over 7 l/100 km, which is very good result. N47 in terms of fuel consumption is more economical than its predecessor M47.

Timing imperfection

Located in an inconvenient place for maintenance, the timing chain drive proved to be extremely unreliable. A poor-quality lower sprocket quickly wore out the teeth, which led to chain damage. Noise from worn parts could appear after 60,000 km. In extreme cases, it came to jumping the chain or breaking it. Theoretically, the manufacturer resolved the issue in 2010, but opinions about achieving a positive result are contradictory. There are cases when, after a warranty replacement of the timing chain, the alarming noise reappeared - approximately after 150,000 km.

intake manifold flaps

The problem is similar to the one that exists in the M47: the flaps become loose, fly off and fall into the engine, damaging it and the turbocharger.

Piezoelectric nozzles

They are used in high power engines. Nozzles of this type cannot be restored, therefore, in the event of a malfunction, the owner will face high costs. Under normal operating conditions, the nozzles confidently go more than 200,000 km.

Application

Since March 2007, the engine has gradually replaced its predecessor. V new version"five" 2-liter biturbo replaced the 6-cylinder diesel 525d.

BMW 1 Series E81: 03.2007-09.2012

BMW 1 Series F20: from 11.2010

BMW 3 Series E90: 03.2007-12.2011

BMW 3 Series F30: from 10.2011

BMW 5 Series E60: 09.2007-03.2010

BMW 5 Series F10: from 03.2010

BMW X1 E84: from 10.2009

BMW X3 E83: 09.2007-08.2010

BMW X3 F25: from 09.2010

Rating: ☆☆

The N47 is the most technically advanced 2-litre diesel in the world. Thanks to progressive solutions, high power and low fuel consumption are achieved. But on the other hand, diesel is too complicated and expensive to maintain.

Alternative

M47 engine with corrected deficiencies.

2.5 d , 3.0 d M 57

Short description:

6-cylinder

24 valve

Common rail injection system

Turbo or biturbo

Models of the middle class and above, and SUVs

The M57 engine family with common rail injection system debuted in 1998, i.e. less than a year after the introduction of the first CR diesel for the Alfa Romeo 156 production car. Diesel BMW received numerous engine of the year awards in its category. This power unit used by other manufacturers: the 2.5-liter version of the M57D25 hit Opel Omega, and a more powerful version in the Range Rover.

Diesel with the designation M57 has a cast iron block, 6 cylinders in a row and an aluminum head with two overhead camshafts. Power supply is provided by a high pressure pump, fuel rail and nozzles - depending on the year of manufacture, electromagnetic or piezoelectric.

During production, its design changed several times: in later models, designated M57N and M57N2, the timing chain drives only one camshaft, and the moment is transmitted to the other camshaft through a gear reducer. Modifications with electrically controlled turbine blades, a new generation Common Rail injection system with higher operating pressure and a particulate filter were also introduced in succession. The top version M57TU2D30 has two turbochargers and 286 hp.

Operation and typical faults

The first versions of the M57 engine are considered not to be killed. There are cases when a BMW 5 Series with this engine drove 1,000,000 km without a major overhaul.

flaps in the intake manifold

More powerful versions of the M57 engine are equipped with a system for changing the length of the intake manifold. Weakening of the dampers and their "spanking" is the most common ailment of the M57. An experienced mechanic will determine the presence of a defect by ear. Many resort to the removal of dampers, but this is not recommended. The prevailing opinion of the majority that after the removal of the shutters the engine works the same way is not entirely accurate. The engine reacts worse to gas in the lower rpm range. The cost of restoration of dampers is from 5000 rubles and more.

Pulley damage M57 N

In the upgraded version of the engine with index N, the attachment drive pulley mounted on the crankshaft fails relatively quickly. This may cause damage to units such as the air conditioning compressor.

fuel injectors common rail

In early versions of the engine, they were durable, but later, from about 2003, the resource was significantly reduced and amounted to just over 100,000 km. In older versions, Bosch solenoid injectors are remanufactured. In later ones, especially biturbo, only a replacement. The price of 12,000 rubles apiece is quite reasonable, especially since we are talking about a car of an expensive and prestigious brand.

Intake manifold rupture

Met only in the engines of the very first batches.

Application

The M57 engine is mounted longitudinally at the front, and the torque is transmitted to the rear wheels or two axles in xDrive versions, where the front wheels receive the necessary traction through the driveshaft.

BMW 3 Series E46: 10.1999-02.2005

BMW 3 Series E90: 09.2005-12.2011

BMW 5 Series E39: 08.1998-06.2003

BMW 5 Series E60: 07.2003-03.2010

BMW 5 Series F10: from 03.2010

BMW 7 Series E38: 08.1998-11.2001

BMW 7 Series E65: 10.2002-06.2008

BMW 7 Series F01: from 06.2008

BMW X3 E83: 01.2004-09.2010

BMW X5 E53: 05.2001-02.2007

BMW X5 E70: from 02.2007

BMW 5 GT: from 10.2009

Opel Omega B: 09.2001-07.2003

Range Rover Sport: from 09.2009

Range Rover: 03.2002-08.2012

Rating: ☆☆☆☆☆

Each engine has its drawbacks, but in the M57 they are not too significant, and malfunctions can be detected and eliminated at the very beginning of their development. Six-cylinder BMW diesel guarantees sporty dynamics with reasonable fuel consumption. The older the engine, the more reliable it is. Recommended versions 184 and 218 hp

Alternative

The naturally aspirated 3.0-litre petrol engine also has excellent dynamic characteristics, is exceptionally reliable, but consumes 15% more fuel.

3.0 d N 57

Short description:

6-cylinder

24 valve

Common rail injection system

Turbo, biturbo or triturbo

High end models and SUVs

The advanced N57 engine debuted in 2008. The new letter designation is fully justified, since the power unit was completely developed from scratch. Its block is made of aluminum, which is likely to affect its durability in the future. The common rail injection system operates at pressures up to 2000 bar. The N57 is the first production triple supercharged engine: this version of the engine, developing 381 hp, was designated N57S. After such a supercharged biturbo engine, you will not surprise anyone. N57 engines are very often combined with all-wheel drive. Only an 8-speed "automatic" is installed in a pair of the motor. All N57s have a particulate filter.

Operation and typical faults

chain rattle

This problem is becoming more and more acute, and BMW does not cover the costs in the post-warranty period. Long intervals between oil changes adversely affect the condition of the tensioner and the chain itself.

The appearance of soot

Owners report that the N57 engine is prone to carbon deposits in the intake ducts. In some cases, already at 70-80 thousand kilometers, it was necessary to disassemble the engine to clean it.

Application

Aluminum N57s are gradually replacing the old M57s. The engine is not used in cars of other brands.

BMW 3 Series E90: from 01.2010

BMW 3 Series F30: from 10.2011

BMW 5 Series F10: from 03.2010 r.

BMW 5 GT: from 07.2010

BMW 7 Series F01: from 10.2008

BMW 4 Series: from 09.2013

BMW 6 Series: from 11.2010

BMW X6: from 09.2010

Rating: ☆☆☆

The N57 is not an engine to save money on. He has excellent performance characteristics but its maintenance costs a fortune.

Alternative

Such characteristics are provided only by the 4.4 Turbo V8 engine, designated N63.

Conclusion

The general rule for BMW engines is simple: all engines, both petrol and diesel, are quite durable and have relatively few weaknesses. However, if a malfunction occurs, then it is necessary to prepare for the high costs of its elimination. You should avoid buying a cheap car with a dubious past. Such savings will quickly go sideways. It is also impossible to neglect the regular monitoring of the technical condition of the engine.

(BMW 125i BMW 220i, BMW 228i, BMW 320i, BMW 328i, BMW 420i, BMW 428i, BMW 520i, BMW 528i, BMW X1 2.0, BMW X1 2.8, BMW X3 2.0, BMW X3 2.8, BMW X4 2.0, BMW X4 2.8, BMW z4 1.8, BMW z4 2.0 after 2011)

The N20 engine is a four-cylinder turbocharged BMW engine with direct injection of gasoline into the cylinder, which is installed in various BMW models with the suffixes 1.8i, 2.0i and 2.8i at the end of the name after 2011.

Before we move on to talking about tuning the BMW N20 engine, I suggest that you familiarize yourself with its design and modifications.

The BMW N20 engine was first introduced in 2011 with the BMW X1 2.8 xDrive. Subsequently, this engine appeared on the following models: BMW 125i; BMW 220i, BMW 228i; BMW 320i, BMW 328i; BMW 520i, BMW 528i; BMW X1 2.0 xDrive, BMW X1 2.8i xDrive; BMW X3 2.0xDrive, BMW X3 2.8xDrive; BMW X4 2.0 xDrive, BMW X4 2.8 xDrive; BMW Z4 1.8i, BMW Z4 2.0i and BMW Z4 2.8i.

During release various models BMW N20 engines, the following engine control units (ECUs) were used: MEVD 172.2, MEVD 1724, MEVD 1729, MEVD 172p.

Initially, an engine with a power of 245 hp was introduced. at 5000 - 6500 rpm, and the torque of which reached 350 nm. at 1250-4800 rpm.

BMW N20 engine modifications.

BMW models	power hp/kW	at rpm	Cr. moment nm.	At rpm	compression ratio
					high / low
BMW 220i, BMW 320i, BMW 520i, BMW X1-2.0, BMW X3-2.0, BMW X4-2.0, BMW z4-2.0
BMW 125i M Performance,
BMW 228i, BMW 328i, BMW 528i, BMW X1-2.8, BMW X3-2.8, BMW X4-2.8, BMW z4-2.8

Power and torque diagrams various engines BMW N20.

Consider the design features of this motor.

All-aluminum cylinder block with wear-resistant cylinder wall coating. This coating is formed as a result of gas-dynamic spraying of molten steel wire, which results in electric arc metallization (EDM) of aluminum with iron. This technology allows, on the one hand, to provide the advantages of all-aluminum cylinder blocks (alusil), providing a minimum clearance between the piston and cylinders, and on the other hand, provides high strength of the cylinder wall.

A forged crankshaft with a diameter of 50 mm connecting rod and main journals turned out to be quite light for a motor with such power (13 kg versus 21 kg on the BMW N52 engine).

The new Bosch MEVD 172x engine management system, based on Infineon TriCore processors, provides faster operation than its predecessors. The area for storing the program is now located in the processor itself and there is no loss in the transfer of information between various elements of the control unit.

A variable lubrication system with a solenoid regulator to ensure proper oil pressure in all conditions.

Consolidation in single system management of all modern systems gas distribution and mixture formation: camshaft position adjustment system DOUBLE VANOS; infinitely variable intake valve stroke system VALVETRONIC; system of direct injection of gasoline into the cylinder and turbocharging with a turbine Twin Scroll.

All these systems are united in a common name TVDI(Turbo-Valvetronic-Direct-Injection) and provide the widest possibilities for adjusting the valve timing and the formation of local combustion zones of the mixture in the cylinder with the required degree of enrichment.

VALVETRONIC. It consists of a system of stepless adjustment of the valve stroke and a mechanism for adjusting the valve timing VANOS. Thanks to this, flexible control of the stroke and phases of the intake valves, as well as adjustment of the phases of the exhaust valves is possible.

The mechanism is based on an eccentric shaft with a worm drive and a complex system of pushing levers. This is already the 3rd generation of this system, which, despite the complexity of the design as a whole, has already proven its reliability.

Also, the intake valve stroke adjustment provides a throttling function and allows you to control the engine power instead of the throttle, which provides high speed response to the position of the gas pedal.

Just like on the BMW N55 engine, the VALVETRONIC electric drive is located inside the cylinder head and no longer acts as an alien tide on the valve cover.

Turbocharging– The BMW N20 engine uses a turbocharger with one turbine made according to the technology Twin Scroll, which allows you to isolate the exhaust gases in groups of cylinders 1-4 and 2-3.

This significantly increases the efficiency of the turbine and allows you to simultaneously use not only the pressure and temperature of the exhaust gases, but also the energy of the impulse boost wave to drive the turbine. Thus, due to the special design of the exhaust manifold and turbocharger, a minimum engine reaction time at low speeds is achieved.

The performance of the turbocharger is adjusted by opening the bypass damper and redirecting part exhaust gases around the turbine. This damper is controlled by a vacuum actuator and a piezoelectric valve.

As with previous engines, the turbocharger and exhaust manifold form a single piece, which ensures minimal distances between the exhaust valve and the turbine, as well as an overall compact design.

In general, thanks to all these the latest technologies and the systems turned out pretty interesting motor, which, with a weight of 113 kg. (against 178 kg for the BMW N52) provides significantly better performance torque and economy.

Specifications of the BMW N20 engine:

engine's type	Inline 4 cylinder petrol
Displacement (cm cube)
Bore / Stroke	84 mm / 90.1 mm
Intercylinder distance
Main bearing diameter crankshaft
Diameter connecting rod bearings crankshaft
The order of operation of the cylinders
Engine power (hp / kW at rpm)	245 / 180 at 5000-6500	218 / 160 at 5000-6000	184 / 135 at 5000-6250	156 / 115 at 5000-6250
Maximum torque (Nm at rpm)	350 at 1250-4800	310 at 1250-4800	270 at 1250-4500	240 at 1250-4400
Maximum allowable rotational speed (rpm)
Liter power (kW/l)
Compression
Number of valves per cylinder
Inlet valve diameter (mm)
Exhaust valve diameter (mm)
Max. Inlet / Exhaust Valve Stroke (mm)
VANOS adjustment range Inlet sides
Exhaust side VANOS adjustment range
Inlet camshaft position
Exhaust camshaft positions
Inlet camshaft opening phase
Exhaust camshaft opening phase
Engine weight (kg)
Engine management system	MEVD 1722, MEVD 1724, MEVD 1729, MEVD 172p.
EU / US Environmental Compliance

Tuning engine BMW N20.

As you can easily understand from the previous description, there are, in fact, only two BMW N20 engines: one with a compression ratio of 10:1, and the other with a compression ratio of 11:1. Otherwise, the richness of the model range is provided by various settings of the engine control unit.

Structurally, the difference between these motors is only in the form of pistons. For motors with a compression ratio of 11:1, pistons with a smaller volume of recess in the piston crown are used.

Thus, any motor with a compression ratio of 10:1 can be boosted to a power level of 245 hp in a regular way. This applies to the BMW z4-1.8i, BMW 125i, BMW-X1 20i and BMW-X3 20i models, as well as some models with the 20i index, which have a low compression engine (supplied in countries with poor gasoline, option S858).

For other models with the N20B20-U0 motor, in order to achieve identical factory parameters, it is necessary to change the piston. However, practice has shown that engines with a compression ratio of 11 generally work fine on a standard firmware of 245 hp.

Based on the foregoing, we can confidently conclude that the most effective way forcing the BMW N20 engine is .

Of course, there is reason to believe that in adverse conditions (hot weather, high load and violations of the thermal regime of the engine), the knock control system will reduce engine power by some amount, but it will still be more than the standard 184 hp.

Let's look at what the compression ratio is and why its high values ​​\u200b\u200bare dangerous.

The compression ratio is a geometric indicator of the engine, which is determined by the ratio of the total volume of the cylinder to the total volume of the combustion chamber. The higher the compression ratio, the higher the pressure in the cylinder before ignition fuel mixture, and accordingly, the higher the temperature and pressure of the working fluid at the beginning of the working stroke. As well as higher engine power and better efficiency.

However, you can increase the compression ratio up to a certain limit, overcoming which you can destroy the engine.

What is the danger of a higher compression ratio. The answer, in general, is obvious - detonation. When the compression pressure exceeds a certain value, there are local zones of combustion of the fuel mixture at supersonic speed - explosions inside the cylinder, which lead to the appearance of shock waves that destroy the engine.

Typically, for a modern engine running on gasoline 91-98, the compression ratio is in the range of 10.2-11.3. For turbocharged engines, the compression ratio is reduced to 8.5-9.5. This is due to the fact that the absolute pressure in the cylinder before ignition is critical for the occurrence of detonation, and not the nominal value of the compression ratio. For obvious reasons, turbocharged engines have more pressure in the cylinder than atmospheric engines with the same compression ratio.

but bmw motors with direct fuel injection into the cylinder and Valvetronic became an exception to this rule. For example, the BMW S55 engine, having a fairly high degree of boost (liter power 143 hp), has a compression ratio of 10.2: 1.

This is primarily due to the peculiarities of the working process of the motors. TVDI: due to the formation of local zones inside the cylinder with a normal or slightly enriched mixture and the evaporation of the injected fuel, ideal conditions for the combustion of the fuel mixture are created. Thus, it became possible reliable performance such turbocharged engines with a compression ratio of 10-11 without detonation.

The design of the BMW N20 engine is, in general, identical to the S55 engine from the BMW M3 F80 and taking into account the liter power of 122 hp. and technology TVDI, 11:1 compression doesn't look too high.

It should be understood that after increasing the power to 245 hp. there will be some restrictions on the operation of such a motor:

1. It is necessary to use only AI 98 gasoline. The use of 91 gasoline for this engine is strictly contraindicated, and 95 is undesirable.
2. The requirements for the cooling system are increasing - a meticulous control over its serviceability is necessary: ​​regular flushing of the radiator and checking the thermal regime of the engine.
3. The requirements for the lubrication system are increasing: unambiguously apply a short oil change interval and monitor the condition of engine parts for the formation of deposits on them, which can worsen heat removal from cylinder head parts.

Otherwise, your BMW with the 2.0i index at the end of the model name can easily get 245 hp under the hood.

If you want to get more than 245 hp, then it is still better to replace the piston.

When tuning the BMW N20 engine with a low compression ratio, without much risk for reliability, get a power of 290 hp and a torque of 420 Nm.

Tuning and warranty

Perhaps the most exciting question: is it possible to increase the power and keep the warranty?

Apparently, only specialists from BMW-AG itself can give an unambiguous answer to this question. We can only provide a number of measures so that it would be impossible to detect traces of chip tuning by means of regular diagnostics (preservation of original firmware identification numbers and programming records)

Unfortunately, at the moment there is no way to work through the OBD2 connector. The engine control unit must be dismantled, then, by activating the boot mode, you can download or upload the program.

You can upload either a standard program or a modified one.

In the case when it is necessary to debug the program or for one reason or another it is necessary to change it regularly, it is possible to install a special board inside the computer that can turn on the boot mode without dismantling the computer from the intake manifold. which will greatly simplify the work of chiptuning.

Tuning program for cars with BMW N20 engine.

BMW 125i - F20/F21

Motor BMW N20b20-M0. Stage 1 - engine tuning up to 245 hp.

motor model
Installed on cars	BMW 125i - F20/F21
The tuning program includes	Chip tuning
Program cost
Engine Specifications	Standard engine	Engine after tuning
Power	218 hp. / 160 kW	245 hp / 180 kW
At rpm	5000-6000 rpm	5000-6500 rpm
Torque
At rpm	at 1250-4800 rpm	1250-4800 rpm
Fuel used	Gasoline 91-98 ROZ	Gasoline 91-98 ROZ

Motor BMW N20b20-M0. Stage 2 - engine tuning up to 290 hp.

motor model
Installed on cars	BMW 125i - F20/F21
The tuning program includes	Chip tuning
Program cost
Engine Specifications	Standard engine	Engine after tuning
Power	218 hp. / 160 kW	290 hp / 213 kW
At rpm	5000-6000 rpm	5800 rpm
Torque
At rpm	at 1250-4800 rpm	2500-3000 rpm
Fuel used	Gasoline 91-98 ROZ	Gasoline 95-102 ROZ

BMW 228i-F20/F21, BMW 328i-F30/F31/F34, BMW 428i-F32/F33/F36, BMW 528i-F10/F11, BMW X1 28i-E84, BMW X3 28i-F25, BMW X4 28i-F26 and BMW z4 28i-E89.

BMW N20B20-O0 engine Stage 1 - engine tuning up to 290 hp.

motor model
Installed on cars	BMW 228i-F20/F21, BMW 328i-F30/F31/F34, BMW 428i-F32/F33/F36, BMW 528i-F10/F11, BMW X1 28i-E84, BMW X3 28i-F25, BMW X4 28i-F26 and BMW z4 28i-E89.
The tuning program includes	Chip tuning
Program cost
Engine Specifications	Standard engine	Engine after tuning
Power	245 hp / 180 kW	290 hp / 213 kW
At rpm	5000-6500 rpm	5800 rpm
Torque
At rpm	1250-4800 rpm	2500-3000 rpm
Fuel used	Gasoline 91-98 ROZ	Gasoline 95-102 ROZ

BMW 220i-F20/F21, BMW 320i-F30/F31/F34, BMW 420i-F32/F33/F36, BMW 520i-F10/F11 and BMW X4 20i-F26.

BMW N20b20-U0 engine with high compression ratio. Stage 1 - engine tuning up to 258 hp.

motor model
Installed on cars	BMW 220i-F20/F21, BMW 320i-F30/F31/F34, BMW 420i-F32/F33/F36, BMW 520i-F10/F11 and BMW X4 20i-F26
The tuning program includes	Chip tuning
Program cost
Engine Specifications	Standard engine	Engine after tuning
Power	184 hp. / 135 kW	258 hp / 190 kW
At rpm	5000–6250 rpm	5200-6400 rpm
Torque
At rpm	at 1250-4500 rpm	1350-4700 rpm
Fuel used	Gasoline 91-98 ROZ	Gasoline 95-102 ROZ

Vehicles BMW X1 20i-E84, BMW X3 20i-F25 BMW z4 20i-E89 and models with option S858.

BMW N20b20-U0 engine with low compression ratio. Stage 1 - engine tuning up to 245 hp.

motor model
Installed on cars	BMW X1 20i-E84, BMW X3 20i-F25, BMW z4 20i-E89 and models with option S858
The tuning program includes	Chip tuning
Program cost
Engine Specifications	Standard engine	Engine after tuning
Power	184 hp. / 135 kW	245 hp / 180 kW
At rpm	5000–6250 rpm	5000-6500 rpm
Torque
At rpm	at 1250-4500 rpm	1250-4800 rpm
Fuel used	Gasoline 91-98 ROZ	Gasoline 91-98 ROZ

BMW N20b20-U0 engine with low compression ratio. Stage 2 - engine tuning up to 290 hp.

motor model
Installed on cars	BMW X1 20i-E84, BMW X3 20i-F25 and BMW z4 20i-E89 and models with option S858
The tuning program includes	Chip tuning
Program cost
Engine Specifications	Standard engine	Engine after tuning
Power	184 hp. / 135 kW	290 hp / 213 kW
At rpm	5000–6250 rpm	5800 rpm
Torque
At rpm	at 1250-4500 rpm	2500-3000 rpm
Fuel used	Gasoline 91-98 ROZ	Gasoline 95-102 ROZ

BMW z4 1.8i-E89 car

Motor BMW N20b20-U0. Stage 1 - engine tuning up to 245 hp.

motor model
Installed on cars
The tuning program includes	Chip tuning
Program cost
Engine Specifications	Standard engine	Engine after tuning
Power	156 hp. / 115 kW	245 hp / 180 kW
At rpm	5000–6250 rpm	5000-6500 rpm
Torque
At rpm	at 1250-4400 rpm	1250-4800 rpm
Fuel used	Gasoline 91-98 ROZ	Gasoline 91-98 ROZ

BMW N20b20-U0 engine Stage 2 - engine tuning up to 290 hp.

motor model
Installed on cars
The tuning program includes	Chip tuning
Program cost
Engine Specifications	Standard engine	Engine after tuning
Power	156 hp. / 115 kW	290 hp / 213 kW
At rpm	5000–6250 rpm	5800 rpm
Torque
At rpm	at 1250-4400 rpm	2500-3000 rpm
Fuel used	Gasoline 91-98 ROZ	Gasoline 95-102 ROZ

With the launch of the new, slightly improved 3-Series, Bayerische Motoren Werke has brought some confusion to their ranks. For example, in Europe new model The 330i will replace the previous 328i, but this will happen purely nominally, since the engine will not change its volume and everything will also be represented by 2.0 liters.

I remember there were a few other times when everything was different. Everything was much simpler and more intuitive. The 328i had a 2.8L engine under the hood, while the 330i had a 3.0L engine under the hood, of course. And so on and so forth, at face value.

According to the logic of things, such a "forgery" is not accidental and is partly justified. The volumes of motors, of course, are becoming more modest, but here is the power ..., on the contrary, the power is growing, and at a very fast pace. Before you know it, the new model beats last year's by a good couple of dozen horsepower. Over decades of continuous progress, engines that were considered small in the early 90s, 1.6, 1.8 and even 2.0 liter engines now produce more power than that developed by 2.5, 3.0, and even 4.0 liter units at the end of the 20th century.

So it turns out that if we count in terms of horsepower under the hood, then some BMW with a “modest” and nothing remarkable 2.0-liter engine can easily make a 4.0-liter monster of the past century in terms of peak power. About others important parameters as an output to peak torque from 1.800-2.000 rpm or efficiency during normal operation, we are generally silent.

And in order to make it psychologically more comfortable for buyers and not to scare off customers with nameplates 1.6-1.8 on the trunk lid, like other leading automakers are experimenting with the names of their models, do not write horsepower on the sides, really ?!

To understand the depth of changes in the range of BMW engines, we will try to find out which Top 5 BMW engines have been put on 3-Series cars over the years. Including "M" models.

5 - BMW M42 B18, 1.8 liter in-line four-cylinder, 138 hp With. (E30, E36)

Fifth place was taken by the well-known 1.8 liter BMW unit. Hush, hush, don't drive the horses! We understand that it may not be from Bavaria, but listen to us.

First, where was it used? In lightweight e30 and e36 bodies, often in 318iS models. Let's face it, it's not the best. best bmw in terms of dynamics and drive (it just so happened that BMW owners give this notorious “drive” to everyone as one), but the 1.8-liter engine still fulfilled its mission. For a reasonable price, you bought a near-sport car with a wide range of refinement options and stock dynamics of just over 10 seconds. For the late 80s, the first half of the 90s, this was a truly valuable breakthrough. Bavarians brought sensation sports car to the masses. Moreover, everyone could purchase models with this engine without overpayments.

Why didn't the Germans take the success further and offer a model for expansion to other continents? The fact was that in South Africa in those years the idea prevailed that cool car should be compact and lightweight and carry in your engine compartment largest available engine. Needless to say, the coupe still had that temper, not everyone was subject to all the power of this rare nugget.

3 - M47, 2.0 liter, gasoline in-line four-cylinder, 136 hp With. (E46)

With this engine, BMW has shown that diesel can be fun. In fact, the 320d, powered by a 134 horsepower 16-valve engine, was faster than the 2.0-liter 6-cylinder petrol 320i model, which had 148 horsepower. Both cars hit 100 km/h in 9.9 seconds, after which the torque kicked in and the 320d easily passed its less nimble counterpart.

Shortly after its launch, the M47-based 3-Series set the standard for affordable, reliable and fuel-efficient sports sedans. Sounds paradoxical? Perhaps, however, this explains why the 320d models are so successful to this day.

2 - S54, 3.2, straight-six, 338 hp (E46)

Okay, enough talking about 1.8 liter engines and diesel engines, it's time to withdraw heavy artillery. This 3.2-litre monster that powered the E46 M3 is undoubtedly one of the best BMW engines ever made. It was based on the M54 DOHC inline six-cylinder engine, used an aluminum block and a solid aluminum cylinder head.

He had individual throttle valves for each cylinder, lighter pistons, larger intake valves, VANOS high pressure variable valve timing system for variable valve timing, the list of advanced technical solutions is not complete, it can be continued ...

The S54 is not far from BMW racing engines and was the last naturally aspirated engine to be installed on the M3. The power was enough to accelerate the M3 from 0 to 100 km/h in 5.1 seconds, with a top speed limited to 250 km/h.

1 - S65, 4.0 liters, 420 hp (E90/92/93)

What is the easiest way to develop a V8 engine? Well, in the case of BMW, you need to get rid of two cylinders from the S85 V10 engine. Yes, the V8 version found in the 4th generation M3 is a derivative of the monstrous F1-inspired road-going V10 that was in the BMW production line.

An article about the best BMW engines - their technical specifications and important features. At the end of the article - interesting video about how BMW engines are made in China.

The content of the article:

The opinion that the quality and productivity of the engine depends on its volume is long gone - modern engineering trends are based on reducing the volume of the engine while increasing its power.

BMW has been a leader in the automotive market for many years. Engines designed by engineers of a well-known representative of the German automotive industry meet all modern requirements. Back in the middle of the last century, the creators of the brand formulated a concept that reflected the meaning of their existence as the creators of cars. It sounded like this: "The car is for drivers."

Brand history

The BMW company dates back to 1913. In the then small German town of Munich, two small companies engaged in the production of engines for the aviation industry merged. The new enterprise was named Bayerische Flugzeugwerke (BFW).

In 1917, the logo was created, which today is a sign of High Quality. But not everyone knows its meaning. Since the history of the brand began with the aircraft industry, the created logo is also directly related to aircraft - it depicts an aircraft propeller against the blue sky.

The name BMW, under which the company is known to the modern consumer, appeared in 1920, after the German Versailles Treaty banned the production of any aircraft. For some time, the BMW factory produced brakes for aircraft. But the founders of the company decided not to linger in the aviation industry - in 1923 the first BMW motorcycle was created.

It must be said that the two-wheeled vehicles produced by the German automotive giant still win the hearts of lovers of extreme sports and high speeds. The first car rolled off the assembly line in 1929.

Since the birth car brand The BMW company has experienced several major failures. But despite this, they were able to climb the "auto-Olympus" and take their place of honor there. The engines produced by the concern have been holding leading positions in the most authoritative world competitions for several years. What motors of the German manufacturer are rightfully considered the best in the world?

First of the first

1999 was a significant year for all representatives of the automotive business and production. It was in that year that a competition was held for the first time to identify the best car engine. Among the nominees were largest companies from all over the world. The first place was absolutely deservedly taken by diesel engines produced by BMW:

The device was produced in two versions: 3.9 and 4.4 liters. The cylinder block and crankcase were made of cast iron, which significantly increased the weight of the engine, but at the same time gave the engine parts high strength.

The best among gasoline engines

Among motorists, cars with an engine running on gasoline are very popular. Such demand is explained by the simplicity in production and, as a result, the relatively low cost of the motor.

Another important advantage of the unit is the ability to develop high speed in a short period of time.

Gasoline engines are not considered too economical, but recently the installation and use of HBO, which functions perfectly in tandem with gasoline engine internal combustion, solves this problem.

Among gasoline engines, released by BMW, the following models can be noted:

The innovative VANOS gas distribution system allows you to significantly increase the performance of the device, while significantly reducing fuel consumption.

The use of aluminum alloy greatly facilitates the design of the motor. This engine model is characterized by the complexity of the lubrication process.

best diesel engine

Cars with a diesel engine have long and firmly entered the hearts and garages of motorists around the world. This is a truly versatile unit. He "perfectly" copes with "traction" loads and is able to withstand the transportation of large loads on an ongoing basis. At the same time, he copes well with the "urban" mode of operation.

Endless braking and abrupt starts are tolerated by a diesel engine without any problems. But for highways and racing cars this is far from the best option.

Economy is also a clear advantage of diesel - diesel fuel cheaper than gasoline.

What diesel engine from BMW was recognized by international experts as the best?

16 valve N47, which quite successfully replaced its predecessor - the diesel M47. 4 cylinders, 2 camshafts, injection system reaching a pressure of 2200 bar, aluminum crankcase - that's not all technical advantages, which allowed them to take first places in the categories "Best New Developments" and " Best Engine volume from 1.8 to 2.0 liters.

This engine is presented in two configurations - 1.6 and 2.0 liters. But it was the two-liter power unit that won the above awards. The engine is installed on most models of E and F classes.

Achievements of recent years

Modern society dictates more and more new rules. This also affected the requirements for internal combustion engines. The motorist of the 21st century wants to get maximum power from the motor with a minimum of financial investment.

An important factor is the environmental friendliness of transport.“Less emissions, more clean air” is what consumers are demanding from car manufacturers. And the BMW concern gave fans of their cars the opportunity to "make the world cleaner."

bmw b58- a gasoline 6-cylinder turbocharged engine, which appeared to the eyes of car owners in early May 2015. In such a short period of existence, he managed to receive several awards of the highest category at international competitions. Among consumers, it is called "Breakthrough in engine building" and nothing else.

The use of aluminum alloys and polymer composites has significantly reduced the overall weight of the engine. The difference with the N55, which is gradually being replaced by the B58, is in the order of 100 kg. The level of carbon dioxide emissions fully complies with the Euro-6 category. That cannot but please the fighters for the environment.

To minimize fuel consumption, the B58 uses an innovative pump control map and a direct line in the injection system. The concept of TwinPower Turbo refers to the use of several technologies at once: VANOS, Valvetronic, Turbocharging and Direct injection.

Conclusion

The combination of the letters BMW has long been a sign of high quality and innovative manufacturability in the automotive world. This applies to all products coming off the assembly line of the German brand factories. Like the first models created in the early 19th century, modern turbocharged engines surprise with their technical specifications.

From the inception of the first 303 to the present day, the Car for the Driver concept has remained relevant. Both designers and brand designers are guided by it. Stylish design and manufacturability - a combination that gives BMW cars the right to bear the proud title of leader in the global automotive industry.

Video on how to do bmw motors in China:

A new generation of diesel engines was introduced to the release of the restyled version of the BMW X3 Facelift in 2014, which in subsequent years may become an integral part of the European fleet. BMW cars. The B47 engine, like its N47 predecessor, has four cylinders and a 2.0 liter displacement. Numerous improvements were aimed at reducing fuel consumption and improving the sound of the engine. In an interview, Christian Bock, head of the new engine development project, revealed information about many technical features new 4-cylinder diesel unit, which is offered in versions with 150 and 190 hp.

The importance of an economical yet powerful diesel engine to the European market cannot be overestimated. For example, the 520d engine has not only dominated the BMW 5 Series for a long time, but is also very popular in the 3 Series and models off-road X1 and X3. With the release in 2014 of the restyled version of the BMW X3 F25 LCI, the previously used N47 engine will go to a well-deserved rest and will be replaced new BMW B47.

Like its predecessor, the B47 has four cylinders in line, common rail injection, 1,995 cubic centimeters of displacement and a single variable geometry turbocharger.

While the N47 in the x18d and x20d versions had 143 and 184 hp, the new B47 offers 150 and 190 hp. The maximum torque in the case of the 150-horsepower version remains at 360 Newton meters at 1500-2250 rpm (previously: 1750-2500 rpm). In the more powerful series, this figure has increased from 380 to 400 Nm at 1750-2250 rpm (previously: 380 Nm at 1750-2750 rpm).

The increase in engine power and torque significantly improved the driving characteristics of the BMW X3. Thus, the X3 xDrive20d is able to reach the mark of 100 km / h in 8.1 seconds, which is four tenths of a second faster than before. In addition, the optimization also affected the indicators in the intermediate sprint.

The new B47 meets the Euro 6 environmental standard and is characterized by reduced fuel consumption in the Euro cycle. Depending on the type of transmission and series of production, the reduction in fuel consumption is 0.1-0.4 liters. However, whether a four-cylinder diesel engine will always show moderate appetite in practice remains to be seen. In the case of the X3 sDrive18d, the low rolling resistance tires ensured the car consumed 4.7 liters per 100 km in a standard cycle and became the most economical SUV in its class.

One thing is certain: the B47 engine will gradually replace the N47 and will continue to provide high performance and reduced fuel consumption not only for the restyled version of the X3, but also for many other Bavarian cars. However, from the point of view of BMW, its main advantage lies elsewhere. Compared to the N47, the new B47 uses a lot more unified parts, which allows them to be purchased in large quantities, significantly reducing purchase prices.