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BMW N40 is an inline four-cylinder naturally aspirated engine of the car manufacturer BMW with 16 valves.[1] This engine model was developed for markets with special displacement taxation. [1] The N40 is parallel to the N42 developed and related to it. For example, the cylinder crankcase, including piston engines of this same design [2], as the cylinder bore of 84 mm is equal. The different displacements are generated by another stroke. Unlike the N42 has the N40 does not have the Valvetronic system. In the modification of the N42 to the N46 and the N40 was for N45 developed.


Motortype Displacement Bore × Hub Performance at 1/min Torque at 1/min Maximum speed Year
N40B16 1,6 L (1596 cm3) 84 mm × 72 mm 85 kW (115 PS) at 6100 150 Nm at 4300 6500 min−1 2001–2004


  1. ^ Lewin, Tony (2004). The Complete Book of BMW: Every Model in the World Since 1962. MotorBooks International. pp. 258–259. ISBN 9781610592055.