Along with the launch of the facelifted 2015 BMW X3, the next generation BMW engines is being introduced to the market.
The new B47 engine replaces the N47 power unit and like its predecessor is a four cylinder in-line, common rail injection, 1,995 cc displacement with a single turbocharger with variable turbine geometry.
While the N47 in the xDrive18d and xDrive20d made 143 and 184, the new B47 provides 150 and 190 bhp. The maximum torque for the based B47 remains at 360 Newton meters, but it is now available between 1500-2250 rpm (previously 1750-2500). With the more powerful stage, the maximum torque climbs from 380 to 400 Newton meters between 1750-2250 rpm (previously 380 Nm 1750-2750 rpm).
The increase in power and torque makes the new BMW X3 noticeably faster than previous model, the X3 xDrive20d is four tenths of a second faster.
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On the same topic, BMW development director Herbert Diess explained the new family of engines to Automotive News Europe:
What is the potential range of your new modular engine family?
A 500cc combustion chamber for both gasoline and diesel, with both three- and four-cylinder layouts, giving total capacities of 1.5 and 2.0 liters. One crucial element is that these new engines are designed to mount transversally in Mini and BMW front-drive models, as well as longitudinally in other BMWs. This is a level of flexibility we did not have in the past.
Will your renowned six-cylinder 3.0-liter engine also be derived from this new modular family?
It will — because three-, four- and six-cylinder engines are all produced on the same line.
At the same time, the new BMW B47 meets the Euro 6 emissions standard and comes with a slightly lower average fuel consumption. Depending on the transmission and expansion stage, the consumption decreases by 0.1 to 0.4 liters. With reduced rolling-resistance tires, the BMW X3 sDrive18d comes to a standard consumption of 4.7 liters, which makes it the most fuel-efficient SUV in its class.