AT 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 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 engines bmw. 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 old copies, difficulties arise when trying to overhaul - the materials used to make the cylinder liners do not allow them to be restored.

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 you make the right choice.

Engine marking

The German concern BMW has been one of the leaders in the production of 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 new generation engines;
• 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 innovation and latest developments. Modern models X5 are equipped with several types of gasoline and diesel engines supercharged.

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. Already on next year naturally aspirated diesels were discontinued and never resumed.

M30 engine 2.5, 2.8, 3.0, 3.2, 3.5 liters

BMW Group poached Bernard Oswald from Ford for the development of the second generation 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 - a cast iron block, an aluminum head with a camshaft chain drive. 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, part of the survivability of the engine was provided by its high power. Due to 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.

The M30 is an engine for a quiet ride, it has a too heavy piston and too large piston strokes, which prevent it from spinning up quickly and create heavy loads on the 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, an oil cooler must be installed.

On the other hand, the advantages of balancing the inline six and high power at low speeds 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, all BMW engines of that time were equipped with thermostats, which, when worn out, caused additional cooling of the engine, which worsened the engine's fuel consumption characteristics. Subsequently, the BMW plant changed fuel system engine for single row system high pressure.

The turbocharged BMW M47 diesel engine uses a Garrett variable geometry turbocharger (VGT), also known as a variable vane turbocharger. These early VGTs until September 2003 used a vacuum system to control an actuator 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. It also needs to be checked regularly. 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 the connections of the vacuum tube and the condition of the vacuum reservoir 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 simply 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. In this way, you check how much the bearings "float", both from side to side (radial clearance) and along the axis (axial play). The axial clearance is typically between 0.025-0.1 mm and can hardly be felt, the 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.

Unusually high oil consumption combined with blue smoke from the exhaust pipe can be a symptom of worn seals. In very rare cases, the engine may run on its own oil, which will cause plumes 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 N47 successor, it is less problematic and overall more successful 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

TOP 5 WORST BMW ENGINES

Volume 1.5, 1.8, 2.0 liters
M10 - 4-cylinder 8-valve small displacement engine. He, apparently, should be recognized as a long-lived record holder in a series BMW engines. An incredibly successful construct was developed for 114 bodies back in the early 60s. A Russian motorist can easily get acquainted with the "original" version of the M10 by looking under the hood of the Moskvich-412 or 2140 (it was the M10 that AZLK copied when developing its "own" engine). Such longevity, on the one hand, speaks of a remarkable design, on the other hand, it makes it clear that in the later BMW models this engine looks too outdated.

Before this engine appeared in the "new class" 1500 sedans, post-war BMW engines were introduced to the pre-war redesigned 2 liter inline six, an excellent but very expensive aluminum V8 and several adapted motorcycle engines. The history of the M10 engine dates back to 1958, when engineer Alex Falkenhausen proposed a 1 liter four-cylinder engine that was proposed for installation in the 700. This engine never made it into production, but the basic concepts of its design were used in a "new class" engine. It was a design with a cast-iron cylinder block, an aluminum head, and a chain-driven single camshaft. It was created with a margin, which later allowed to bring the working volume up to 2 liters and gave many variations of this motor for almost a quarter of a century. A turbine was also installed on the 2 liter version in 1973 - these engines were used in the 2002 turbo models.

In the "new" history, the M10 was installed on the E12 (models 518, 520i), E21 (315, 316, 318, 318i, 320i), E28 (518) and E30 (315, 316, 318i).

Volume	Cylinder diameter/ stroke	Start	used in models
			1500
			1600, 1600T1, 1600-2, 1602 1502,1600GT E21 316, 315
			1800, 1800T1, 1800TI/SA
			1800, 1802 E21 316, 318, 318i E28 518, 518i E30 316, 318i
			2000, 2002, 2002ti, 2002tii 2000C 2000CS E21 320, 320I, E12 520i

S14 engines (1986 - 1991)

Based on the M10 block, the S14 was developed by BMW Motorsport for the M3 in the E30 body.

Volume: 2302 (2467)
Bore: 93.4 (95)
Stroke: 84 (87)
Introduced in 1986 / (1989)

* In parentheses are data for M3 Sport Evolution

M20 engine 2.0, 2.3, 2.5, 2.7 liters

M20 - a 6-cylinder 12-valve engine of a relatively small (for BMW) volume and a camshaft belt drive - was developed and began to be produced at BMW back in 1977 under the M60 marking.

Basically, the engine was intended for the new and first car of the 5th series, the E12, which appeared in 77. To create modern, economical and not expensive versions cars. In addition, a more powerful engine was also required for the 3-series cars, there was simply not enough space under the hood of the BMW three-wheelers for the M30 (M89) engines.

The new engine differed from its older brother M30 in a lighter design and a camshaft belt drive. Nevertheless, the engine retained a cast-iron cylinder block with an aluminum head. An important innovation in the M60 was the introduction of a camshaft belt drive, instead of the previously used chain.

In the year 82, the M60 engine was slightly upgraded and it received the M20 marking. Previous releases also began to be called M20, and the name M60 was assigned in 93 to a completely different engine. The differences between the M20 and M60 were very minor.

On the M20, there is no fuel pump in the cylinder block, and the number of teeth on the timing belt has also changed - M60 - 111, M20 - 128, and since the 85th year - 127. The gears of the timing mechanism have changed accordingly, as well as the belt tensioner roller.

Further development of the M20 brought a 2.5 liter 170 hp version and a high-torque deformed 2.7 liter modification.

A feature of the M20B27 engine with a volume of 2.7 liters was that the engine was heavily derated. He gave out only 125 hp. at 4800 rpm, but it had a very high torque of 241 Hm at 3250 rpm. For which he received the nickname "gasoline diesel".

Models equipped with such an engine were designated 325e, 525e, and on American market 328e and 528e respectively.

The M20 engine was installed on cars of the third and fifth series.

Third series:

E21 - 320 - 2 liter carb only, 323, 323i - 2.3 liter carb or K-Jetronic mechanical injection.
E30 - 320i, 323i - 2.0, 2.3 liters - with K-Jectrinic or L (E) -Jetronic injection system, 325i, 325e - 2.5, 2.7 liters with Motronic 1.0 Basic injection system.

Fifth series:

E12 - 520 - 2.0 liters - carburettor only.
E28 - 520i - K or L(E)-Jectronic, 525e - 2.7 liters with Motronic 1.0 Basic injection system
E34 - 520i, 525i - 2.5, 2.5 liters with Motronic 1.0 injection system

BMW M20 engine block heads.

Several types of cylinder head were used on the M20, although the differences between them were very small. On the M60 carburetor engines and on the K-Jetronic M20, heads with reduced intake ducts were installed, more precisely, with the advent of the L-Jetronic injection system, the intake ducts were significantly expanded.

A smaller cross section of the inlet channels was required for more correct mixture formation (features carburetor work), as well as for better filling of cylinders at low speeds.

For the M20 B25 engine, the block head was also significantly changed. Namely, oversized valves were installed - inlet 42, outlet - 36. Instead of 40 and 34 for other modifications.

Nevertheless, the heads are partially interchangeable, although, sometimes, with some alterations.

For example, B20 and B23 are completely interchangeable, B25 is also completely interchangeable with B27 from 9/87, and with some alterations B20 / B23 and B27 (up to 12/86), and, of course, carburetors are interchangeable with injectors.

Block head B27 One of the most interesting heads in use.

Depending on the years of production, they were both with thin intake ports (as on the M60 carburetor engine and the K-Jetronic M20) and a combustion chamber similar to the B20, and with large, almost rectangular intake ports, an enlarged combustion chamber and a camshaft with 7 necks (if you replace the camshaft, you get a complete copy of the B25). But there were also intermediate versions - enlarged oval-shaped intake channels, an enlarged combustion chamber and a camshaft with 4 necks.

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. The M21 was equipped with a turbocharger, which allowed the diesel version to maintain the image of a dynamic car inherent in 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 poached Bernard Oswald from Ford to develop a 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 re-used - a cast iron block, an aluminum head with a camshaft chain drive. 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

The M30 engine is a large in-line 6-cylinder engine that comes in 2.5, 2.8, 3.0, 3.2 and 3.5 liter displacements. 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, part of the survivability of the engine was provided by its high power. Due to 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.

The M30 is an engine for a quiet ride, it has a too heavy piston and too large piston strokes, which do not allow it to spin up quickly and create heavy loads on the bearings (liners).

Also, due to the high mass of the piston system, the engine is very demanding on oil, if you feed it with mineral oil and at the same time keep it constantly in the 4-6 thousand rpm range, you will have to grind the crankshaft after a few thousand. Only synthetic oil should be poured into this engine, and if you like to turn it, then for volumes of more than 2.8 liters, an oil cooler must be installed.

On the other hand, the advantages of straight-six balance and high power at low revs more than compensate for these shortcomings.

Also, the M30 - was the second and last engine to be turbocharged as standard - turbocharged modifications of the M30 were used only in the 745i models in the back of the E23. 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, with injector only.
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 M30 engine block heads.

The cylinder head of the BMW M30 engine is perhaps the most unified of all existing ones.

Only carburetor and injection heads have cardinal differences, and the difference is so strong that it is impossible in principle to interchange them.

Otherwise, the block heads are completely identical, up to the valve timing (camshafts).

Otherwise, in the design of the cylinder head there are no fundamental differences from others BMW engines. the movement of gases through the engine is transverse, the combustion chambers have a trispherical shape, a V-shaped arrangement of valves with an overhead camshaft.

M88 24-valve modification M30 1979

Based on the M30 engine, a model was developed with two camshafts and 4 valves per cylinder. Initially, they were installed on M1 supercars, later the same engine with M88 / 3 encoding was installed on the M635CSi model, although later it was labeled S38 B35.

Volume	Cylinder diameter/ stroke	Start release	used in models
			M1, E24 M635CSi, E28M5
			E34M5
			E34M5

In preparing this article, materials from the site were used BMW Russian Pages

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. BMW X5 diesel engines 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-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 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.

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, diesel fuel consumption BMW versions X5 is significantly smaller. The difference in fuel consumption in reality can be up to two times.

List of all BMW engines. Options for 1-, 2-, 3-, 4-, 6-, 8-, 10-, 12- and 16-cylinder power units, their technical characteristics, photos, years of production, models on which were applied.

BMW petrol engines

• M240/M241 (1954-1962) 0.2-0.3 l.

• M102 (1957-1959) 0.6 l.
• M107/M107S (1959-1965) 0.7L
• W20 (since 2014) 0.6 l.

A new generation of engines installed on MINI and BMW cars:

• B38 (since 2011) 1.2-1.5 liters. (DOHC)

Inline 4-cylinder BMW petrol engines

An inline four-cylinder engine or a straight four-cylinder engine is an engine internal combustion which is mounted in straight or along the plane of the crankcase.

The cylinder block can be oriented in a vertical or inclined plane with all the crankshaft pistons.

An in-line four-cylinder engine is designated I4 or L4. Below is the BMW engine range:

• DA - engine for Dixi (1929-1932) 0.7 l.
• M68 (1932-1936) 0.7-0.8 l.
• M10 (1960-1987) 1.5-2.0 liters. (SOHC)
• S14 (1986-1991) 2.0-2.5 liters. (DOHC)
• M40 (1987-1995) 1.6-1.8 liters. (SOHC)
• M42 (1989-1996) 1.8L (DOHC)
• M43 (1991-2002) 1.6 / 1.8 / 1.9 liters. (SOHC)
• M44 (1996-2001) 1.9L (DOHC)
• N40 (from 2001 to 2004) 1.6 liters.
• N42 (2001-2004) 1.8-2.0 liters. (DOHC, VANOS, Valvetronic) - won the international award ""
• N43 (2007-2011) 1.6-2.0 liters. (DOHC, direct injection)
• N45 (2004-2011) 1.6-2.0 liters. (DOHC, VANOS)
• N46 (2004-2007) 1.8-2.0 liters. (DOHC, VANOS, Valvetronic)
• N13 (2011) 1.6 l. (turbocharged, DOHC, VANOS, VALVETRONIC, direct injection)
• N20 (2011) 2.0L (turbocharged, DOHC, VANOS, VALVETRONIC, direct injection) - won the international award "Engine of the Year in Europe"
• N26 (2012) 2.0L (turbocharged, DOHC, VANOS, VALVETRONIC, direct injection)
• B48 (2013)
• P45 (2.0 l.)

BMW in-line 6-cylinder petrol engines

They are best known for their inline six-cylinder engines. The six-cylinder in-line engine is an internal combustion engine.

All six cylinders are arranged in a row, in the following order: 1-5-3-6-2-4. The pistons are rotated by one common crankshaft. It is designated as R6 - from the German "Reihe" - a row, or I6 (Straight-6) and L6 (In-Line-Six).

The cylinders can be in a vertical position or at a fixed angle relative to the vertical.

With a vertical inclination of the cylinders, the engine is usually called Slant-6.

V-shaped engine - all six cylinders are arranged in two rows of three cylinders in a row, thus forming a V-shaped arrangement. The pistons rotate on one common crankshaft. Designated as V6 (from the English. "Vee-Six"). V-twin engine is the second most popular after in-line four-cylinder engine. Camber angles are 90, 60 or 120 degrees. There are also options 15°, 45°, 54°, 65° or 75°.

On the this moment BMW produces 6-cylinder in-line engines

Below are the modifications of BMW engines:

• M78 (1933) 1.2-1.9 L.
• M328 (1936) 2.0-2.1 L.
• M335 (1939) 3.5 L.
• M337 (1952) 2.0-2.1 L.
• M30 (1968) 2.5-3.5 L.
• M20 (1977) 2.0-2.7 L. (SOHC. Early versions of the M20 are sometimes referred to as the "M60", although the M60 has since been used for the V8 engine first delivered in 1992)
• M88/M90 (1978) 3.5L for M1/M5/M6
• S38 (1986 - 1996) up to 3.8 liters. (DOHC)
• M102 (1980) 3.2 L. (turbo)
• M106 (1982) 3.4L (turbo)
• M50 (1989) 2.0-3.0 L. (DOHC 24V with VANOS on M50TU)
• M52 (1994) 2.0-2.8 L. (DOHC 24V with VANOS/Double-VANOS on M52TU) - two International Engine of the Year awards
• S50 (1995) 3.0L (for BMW M3)
• S52 (1996) 3.2L (for BMW M3)
• M54 (2000) 2.2-3.0 L. (aluminum DOHC 24V with Double-VANOS)
• M56 (2002) 2.5 L.
• S54 (2002) 3.2L (DOHC) - six Engine of the Year awards
• N51 (motor for US cars)
• N52 (2005) 2.5-3.0 liters. (magnesium/aluminum DOHC 24V with Double-VANOS and Valvetronic) -two Engine of the Year awards
• N54 (2006) 3.0L (aluminum DOHC 24V turbocharged) - five International Engine of the Year awards
• N53 (2007) 2.5-3.0 liters. (magnesium/aluminum/DOHC 24V with Double-VANOS and High Precision Injection (Gasoline Direct Injection))
• N55 (2009) 3.0L ( TwinPower Turbo, Valvetronic and High Precision Injection)
• S55 (2013) 3.0L (TwinPower Turbo, VALVETRONIC and Double-VANOS)

V-shaped 8-cylinder BMW gasoline engines

The 8-cylinder V-engine is an internal combustion engine.

All eight cylinders are arranged in two rows of four cylinders in a row, thus forming a V-shaped arrangement.

The pistons rotate on one common crankshaft. Designated as V8 - (from the English. "Vee-Eight").

Below are BMW 8-cylinder powertrains:

• BMW OHV V8 (1954 - 1965) 2.6-3.2 liters.
• M60 (1992) 3.0-4.0 L.
• M62 - S62 (1994 - 2005) 3.5-4.4 liters.
• N62 (2001) 3.6-4.6 liters. (with fuel injection SFI, Double-VANOS and Valvetronic) - three International awards "Engine of the Year"
• N62 / S (2004-2006) 4.8 liters. for X5 4.8is
• P60B40 (2005) 4.0L
• S65 (2007) 4.0L for E90/92/93 M3 two International Engine of the Year awards
• N63 (2008) 4.4 l. turbocharged
• S63 (2009) 4.4L turbocharged (TwinPower Turbo)
• P65 (4.0 l.)

V-shaped 10-cylinder petrol engine BMW

The V10 engine is an internal combustion engine with 10 cylinders arranged in two rows of five cylinders. Essentially the V10 is the result of crossing two inline 5-cylinder engines.

• S85 (2005) 5.0L for E60 M5 and E63 M6 four International Engine of the Year awards

V-shaped 12-cylinder BMW power units

The V12 engine is a 12-cylinder V-engine mounted in two rows of six cylinders on a single crankshaft. Typically, but not always, at 60° to each other. In V12 engines, two rows of six cylinders are arranged at angles of 60°, 120° or 180°.

• M70 (1986) 5.0L
• M72 (4-valve M70 prototype)
• S70 - S70 / 2 - S70 / 3 (since 1992) 5.6 - 6.1 liters.
• M73 (1993) 5.4 L. - Won International Engine of the Year Award
• N73 (2003) 6.0L
• N74 (2009) 6.0L turbocharged (TwinPower Turbo, Valvetronic, Double VANOS and high-precision injection)

BMW was the first German manufacturer to release a V12 engine in 1986, forcing Mercedes-Benz to follow suit in 1991. Only 7 and 8 series cars used V12 engines. While BMW sells much fewer cars With 7 series V12 engine than V8 versions, V12 retains popularity in the US, China and Russia, and maintains the prestige of this luxury car brand.

V-shaped 16-cylinder BMW petrol engines

The V16 engine is a 16-cylinder V-engine. This engine are rare in automotive use.

• BMW V16 Goldfish (1987) 6.7 L. (Gold fish)
• Rolls-Royce 100EX (2004) 9.0L (V16 prototype engine)

BMW diesel engines

• B37 (since 2011) 1.5 l.

BMW in-line 4-cylinder diesel engines

• M41 (1994-2000) 1.7L
• M47 (1998-2006) 2.0L
• N47 (2006-2014) 2.0 l.
• B47 (2014) 2.0L

Inline 6 cylinder BMW diesel engines

• M21 (1983-1993) 2.4L
• M51 (1991-1998) 2.5L
• M57 (1998) 2.5-3.0 L.
• N57 (2008) 2.5-3.0 liters.

V-shaped 8 cylinder BMW diesel engines

• M67 (1998-2009) from 3.9 to 4.4 liters - two International Engine of the Year awards

BMW engine number decoding

Explanation and designation of the BMW ICE according to the engine model:

• engine family, mainly denoted by the letter:
  • M - engine developed until 2001;
  • N - engine developed after 2001. Starting in the early 2000s, BMW revised its naming strategy to make it easier to understand and get more information about engine upgrades. New for N Series engines is new design, material for the manufacture of parts and technology used in the motor itself;
  • B - modular engine. Since 2013 the company BMW start introduce a new family of modular engines. The first vehicles to receive the new B-series engines were the hybrid sport car and the lineup compact Mini. Both of these cars were equipped with a 3-cylinder turbocharged B38 engine - direct injection - Valvetronic. The modular B Series engine family includes gasoline and diesel powertrains that share common components and architecture (60% of the parts are identical, for example, a 3-cylinder engine has components from a 4 and 6-cylinder B series engine). Engine displacement increases in 500 cc increments - 1.5l - I3, 2.0l - I4, 2.5l - I6, 3.0l - I6, etc.;
  • S - BMW Motorsport engine;
  • P - BMW Motorsport racing engine;
  • W - engine from a "third-party" developer;
• number of cylinders, indicated by a number:
  • 1 - in-line 4-cylinder;
  • 2 - in-line 4-cylinder;
  • 3 - in-line 3-cylinder;
  • 4 - in-line 4-cylinder;
  • 5 - in-line 6-cylinder;
  • 6 - V-shaped 8-cylinder;
  • 7 - V-shaped 12-cylinder;
  • 8 - V-shaped 10-cylinder;
• change in the basic concept of the engine, where:
  • 0 - base engine;
  • 1-9 - changes in the original design, such as the combustion process;
• fuel type:
  • B - gasoline;
  • D - diesel;
  • E - electric;
  • G is natural gas;
  • H - hydrogen (hydrogen);
• engine displacement in 1/10 liters (indicated by two digits), for example:
  • 15 - 1.5 liters;
  • 20 - 2.0 liters;
  • 35 - 3.5 liters;
  • 44 - 4.4 liters;
• letter designation
  • power class:
    • S - "super";
    • T - top version;
    • O - "upper exit";
    • M - "medium output";
    • U - "lower output";
    • K - "lowest output";
    • O - new development;
    • TU - this designation is indicated only in M-Series engines and indicates a significant upgrade, for example, from one to double VANOS;
  • or type test requirement (changes that require new type tests):
    • A - standard;
    • B-Z - as required, for example, ROZ 87;
• technical version for designation in BMW engines, except for M series engines and replaces the previous TU suffix:
  • from 0 to 9;

BMW also has a different numbering system for domestic production and use. This is the code printed on the side of the cylinder block used on assembly plant BMW and during other service when it comes to the actual engine identity. In most cases, this code is applied to the flat section of the block on the driver's side.

For example "30 6T 2 04N", where:

• 30 - engine size 3.0 liters;
• 6 - six-cylinder engine;
• T is the type of engine, in this case power unit with turbine;
• 2 - index of differentiation;
• 04 - revision number, in this case the 4th;
• N - new engine;

Marking is also found on older models, for example - 408S1, where:

• 40 - engine size 4.0 liters;
• 8 - the number of cylinders;

This overview presents BMW petrol and diesel 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 old copies, difficulties arise when trying to overhaul - the materials used to make the cylinder liners do not allow them to be restored.

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 you make the right choice.

Gasoline engines

1.8 i N42, 2.0 i N46

Short description:

Atmospheric

4-cylinder

16 valve

Multipoint fuel injection (ported)

Engines N42 and N46, produced from 2001 to 2007, are among the most popular four-cylinder BMW units on the 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 little engines are unique. technical masterpieces. Both are equipped with a timing chain drive, both have a Double VANOS system - a system for adjusting the valve timing of intake and exhaust valves, as well as the Valvetronic system - an original solution for a smooth change in lift height intake valves, replacing the usual operation of the throttle.

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 1.8iN42, 2.0iN46

Versions	N42-115	N46-143	N46-150
injection system	distributed	distributed	distributed
Working volume	1796 cm3	1995 cm3	1995 cm3
Cylinder arrangement / number of valves	R4/16	R4/16	R4/16
Max Power	115 HP/5500	143 HP/6000	150 HP/6200
Max Torque	175 Nm/3750	200 Nm/3750	200 Nm/3750
Timing drive	chain	chain	chain

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 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, a new era began for BMW enthusiasts. Exactly then German manufacturer updated the line of engines, introducing completely new engines 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 more high 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 engines. 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 of premature wear of the timing chain. 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.

Fuel pump failure

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.

Specifications 1.6iN43 B16, 2.0 iN43 B20

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 of small and medium 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

Direct alternative this motor could become a 4-cylinder diesel N47.

2.0i - 2.8i M52

Short description:

Atmospheric

6-cylinder

24 valve

average models, 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 lightweight connecting rods, chain tensioner and exhaust manifold the new engine has become lighter than its predecessor by almost 30 kg.

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 volume of 3.2 liters, installed on the M3 and intended for the market North America, is closely related to M52.

In the 1998 BMW 3 E46 series, an updated M52TU engine appeared. 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 case pierce the head gasket. Troubles contribute frequent problems with cooling system pump and radiator fan drive. Ignoring the symptoms of overheating can lead to a disastrous result, 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

Grade:☆☆☆☆

In principle, each of the M52 engines is worthy of recommendations. Most wanted uses a 2.8-liter version of the engine. 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 list of proposals in 2007, along with BMW convertible E46.

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 over high flow oils. 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, it increases overpressure in the engine, 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

Grade:☆☆☆☆

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 liter engine in BMW car 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 in 2011 is a direct successor to the N52, but with a turbocharger and 4-cylinders - typical example 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

Grade:☆☆☆

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

The power unit with the code designation M47 is a 2-liter diesel engine used from 1998 to 2007. It is interesting that 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 fuel injection pump, and the second with an injection system common rail Bosch company.

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 balance shafts. The turbocharger, instead of vacuum control, acquired a more accurate electric one. A good torque curve has been obtained by using variable geometry intake manifold: dampers regulate the air flow depending on the engine speed. Each version of the M47 has chain drive Timing, 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 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

it typical fault 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 compact bmw 1 series, 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

Grade: ☆☆☆

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 range technical solutions that require high costs for service. However, the engine cannot be described as very problematic.

Alternative

Among BMW diesel engines, in principle, there is not much choice, 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 rear - 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. Weaker engines are 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

Diesel N47, given the performance, is a 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 a 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. AT 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. AT 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

Grade:☆☆

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 diesel engine with a CR system for stock car Alfa Romeo 156. Diesel BMW received numerous engine of the year awards in its category. Other manufacturers also used this power unit: the 2.5-liter version of the M57D25 fell into 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 is provided by a high-pressure pump, a fuel rail and nozzles - depending on the year of manufacture, electromagnetic or piezoelectric.

During the production process, 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

AT upgraded version engine with index N, the attachment drive pulley installed on the crankshaft. 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 installed longitudinally in front, and the torque is transmitted to 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

Grade:☆☆☆☆☆

Each engine has its own 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. How older engine the more reliable it is. Recommended versions 184 and 218 hp

Alternative

The naturally aspirated 3-litre petrol engine also delivers excellent performance, is exceptionally reliable, but uses up to 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. N57 is the first serial engine triple supercharged: 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 X3 F25: from 09.2010

BMW X5 E70 : from 09.2010

BMW X6: from 09.2010

Grade:☆☆☆

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

General rule for engines BMW simple: all engines, both gasoline and diesel, are quite durable and have relatively few weak points. 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. Also, regular checks should not be neglected. technical condition engine.