BMW B47 four-cylinder  diesel engine 

The B47 is a turbocharged four-cylinder - diesel engine of the automobile manufacturer BMW . Completely redeveloped, he debuted in 2014 in the BMW X3 and replaced the predecessor N47 . Together with the B37 ( row three-cylinder diesel engine is) and the B57 ( six-cylinder diesel engine is) and the three Otto engines B38 ( three-cylinder ), B48 ( four-cylinder ) and B58 ( six-cylinder), the B47 belongs to the modular construction engines introduced by BMW in 2013/2014. The modular engines are used in BMW models as well as in MINI models.

Like its predecessor N47 , the B47 has four cylinders in series, a common-rail injection , 1,995 cc displacement and also uses balance shafts . The volume of 500 cc per cylinder resulted from thermodynamic and efficiency considerations  . In most variants antifriction bearing turbocharger is adjustable turbine guide vanes installed, the strongest expansion stages (165 kW and 170 kW) are equipped with two turbochargers, both parallel to the principle of turbocharging and connected in series with multi-stage charge can work.
In addition, in the development of the acoustic behavior of the engine was important. Here is u. a. the combustion is nail-optimized by the injection system, and various sound sources are encapsulated  .

Compared to the N47 , the B47 offers more power and higher torque over the entire speed range in all expansion stages . This provides better acceleration and elasticity values. A new combustion chamber pressure sensor also makes it possible to operate the engine closer to its optimum point on the combustion side . The B47 complies with the EU6 emissions standard and, depending on the variant and gearbox , lowers the standard fuel consumption by 0.1 to 0.4 liters compared to the N47 .

By equal parts , which are also used in other new engines, such as the three-cylinder diesel B37 , as well as the petrol engines of the modular system, there is a greater flexibility in production fluctuations in demand and cost reduction.

In November 2017 it was announced that all variants received the bit turbocharger: Technical revision B47TÜ1. Further, all engines received an Adblue injection. Higher injection pressures - at the 218d 2500 bar and the 220d even 2700 bar (Tourer), - as well as detailed improvements in forms and surfaces of cylinder liners ( shaping ofthe cylinder liners) and piston, belt drive and oil supply contribute to a lower fuel consumption. For the strong variants are used solenoid injectors. 

Technical Data

Specifications of the new BMW X3 (F25) , Specifications of the BMW 2 Series Active Tourer, Specifications BMW 5 Series Touring , Specifications of the new BMW 1 Series , BMW model care measures for summer 2015.

Use

2.0 l 85 kW (116 hp), 270 Nm 

• F30 / F31 as 316d (since 03/2015) 

2.0 l 110 kW (150 hp), 320 Nm

• F20 as 118d (since 03/2015) 
• F22 as 218d coupe (since 03/2015) 
• F31 as 318d (xDrive) (since summer 2015) 
• F34 as 318d Gran Turismo (since 06/2015)
• F32 as 418d Coupé (since 03/2015)
• F36 as 418d Gran Coupe (since 03/2015)

2.0 l 110 kW (150 hp), 330 Nm 

• F45 as a 218d Active Tourer 
• F48 as X1 sDrive18d / xDrive18d
• F54 (MINI) as MINI Cooper D Clubman
• F60 (MINI) as MINI Cooper D Countryman
• F39 as X2 sDrive18d (since 04/2018)

2.0 l 110 kW (150 hp), 360 Nm

• F10 as 518d with 360 Nm at 1750-2500 
• F25 as X3 18d with 360 Nm at 1500-2250 

2.0 l 125 kW (170 hp), 360 Nm

• F56 (MINI) as MINI Cooper SD 

2.0 l 140 kW (190 hp), 400 Nm

• F20 as 120d (since 03/2015) 
• F22 as a 220d Coupé 
• F23 as 220d convertible (since 03/2015)
• F45 as 220d Active Tourer
• F30 / F31 as 320d (xDrive) (since summer 2015)
• F32 as 420d (xDrive) (since summer 2015)
• F36 as 420d (xDrive) (since summer 2015)
• F10 as 520d (since summer 2014)
• F25 as X3 20d
• F26 as X4 20d 
• F48 as X1 20d (since summer 2015)
• F54 (MINI) as MINI Cooper SD Clubman
• F60 (MINI) as MINI Cooper SD Countryman
• G30 (sedan) in the 5 Series as 520d (from MY17)
• G31 (Touring) in the 5 Series as 520d (from MY17)
• F39 as X2 xDrive20d (since 03/2018)

2.0 l 151 kW (205 hp), 430 Nm 

• For all models with 2.0 l 140 kW (190 hp) with optional power kit 

2.0 l 165 kW (224 hp), 450 Nm 

• F20 as 125d (since 03/2015) 
• F22 as 225d Coupé (since 07/2015) 
• F30 / F31 as 325d (since 03/2016) 
• F32 / F33 / F36 as 425d (since 03/2016) 

2.0 l 170 kW (231 hp), 450 Nm

• F48 as X1 25d 
• F39 as X2 xDrive25d (since 03/2018)

2.0 l 170 kW (231 hp), 500 Nm 

• F15 as X5 25d (since 07/2015) 
• G30 / G31 as 525d (since 07/2017)
• G01 as X3 25d
• G02 as X4 25d