Engine BMW M54B30

This engine was created in 2000 on the basis of the M52TUB28 engine and was first installed on the restyled versions of the BMW E46 and BMW E39. In addition to the M54B30, the range of new motors includes the M54B22, M54B25 and S54B32. As in the M52B28TU internal combustion engine, the cylinder block is made of aluminum alloy, but using cast iron liners. In 2004, BMW presented the world with a new line of N52 engines, which smoothly began to replace the M54 line. In 2006, the M54B30 ICE completely left the production line. But in 2006, on the basis of the M54, one of the most successful BMW N54 turbocharged engines was created, which was massively installed on cars with the 35i index.
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Engine BMW N43B20

The BMW N43B20 engine is a four-cylinder in-line gasoline unit produced by BMW from 2007 to 2011. There are three versions of the N43 engine, which have gained popularity and recognition among motorists around the world. Unlike its predecessor, the N42 engine, the new BMW N43 engine features direct fuel injection and Valvetronic valve lift systems. The engine was produced in conjunction with such units as N45 and N46, however, in terms of demand, it surpassed its followers in this period of time. This engine has been designed to achieve an optimally high level of torque combined with economy and environmental friendliness – a combination that is not always easy to achieve.
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Engine BMW N46B20

After the inline four N42B20, BMW began producing a motor with the N46 index, its two-liter modification was named N46B20. It is based on the N42B20 engine, and it seems that the new motor does not differ from the old one at all, but this is only at first glance. In the BMW N46B20 engine, the volume was increased to 2.0 L (1995 cc). Different versions of the engine have different power from 129 to 170 horsepower on average at 6000 rpm, the torque is also different and is 180 or 200 Nm at 3750 rpm.
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Engine BMW N53B30

The BMW N53B30 engine is a version of the N53 series engine, produced in several modifications – the 2007 unit has a working volume of 2996 cc. cm, power 210 hp (with a torque of 270 Nm at 3500 rpm). In 2010, versions with a similar displacement, but with changed technical data, were launched into production: the less powerful N53B30 – 200 hp.
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Engine BMW N55B30

In 2009, to replace two brands of engines, BMW released a fresh generation of N55B30 engines. The new engine had an aluminum cylinder block similar to the N54. The cylinder block had cast iron liners and oil nozzles, a crankshaft weighing 3 kg, modified pistons with connecting rods. The connecting rods were now 144.35 mm long. The cylinder head was changed, the variable valve timing system on the two Bi-VANOS shafts was improved.
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Engine BMW N52B25

The 2.5-liter N52 engine of the N52B25 series has six cylinders arranged in one row. Its production began in 2005, in which it replaced the M54B25. Compared to the previous M-series engines, the engine is completely different. The engine uses an aluminum-magnesium alloy cylinder block. Aluminum alloy was used as a liner material, cylinder liners are made of alusin, which, when the internal combustion engine is operating, gives a durable silicon coating of the cylinder walls. The connecting rod-piston group has become lighter and the crankshaft has changed.
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Engine BMW N53B25

The six-cylinder in-line engine N53B25 was designed on the basis of the N52B25 and completely replaced it in 2007. The cylinder block, which is made of an aluminum-magnesium alloy, has undergone very minor modifications, the designers have changed the pistons and increased the Compression ratio (now it is equal to 12.0). The head with double vanos was modified, a direct injection system was added. The Valvetronic system was completely removed from the unit. The engine ECU was also replaced – now the motor is controlled by the MSD81 system from Siemens. This unit was installed on the BMW 23i model in the body – E60 / E61.
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