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The 'N46' is the larger of two modern straight-4 automobile piston engine families from BMW, the smaller being the N45. The series debuted with the E46 316i and 316ti and E87 120i in 2004.
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Contents

Models

N46B18

N46B20

See also

Models

Engine	Displacement	Stroke/Bore	Power	Torque	Redline	Year
N46B18	1.8 L (1796 cc/109 in³)	90 mm/84 mm	85 kW (115 hp) @ 5500	175 N·m (129 ft·lbf) @ 3750		2004
N46B20	2.0 L (1995 cc/121 in³)	90 mm/84 mm	95 kW (129 hp) @ 5750	180 N·m (132 ft·lbf) @ 3250		2004
			105 kW (143 hp) @ 6000	200 N·m (147 ft·lbf) @ 3750		2004
			110 kW (150 hp) @ 6200	200 N·m (147 ft·lbf) @ 3600		2004
			110 kW (150 hp) @ 6200	200 N·m (147 ft·lbf) @ 3750		2005

N46B18

The 'N46B18' is a 1.8 L (1796 cc) engine producing 85 kW (114 hp) and 175 N·m (129 ft·lbf).
Applications:

★ E46 316i/316ti

N46B20

The 'N46B20' is a larger 2.0 L (1995 cc) engine.
Applications:

★ 95 kW (127 hp) and 180 N·m (133 ft·lbf)

★
★ E87 118i

★
★ E90/E91 318i

★ 105 kW (141 hp) and 200 N·m (148 ft·lbf)

★
★ E46 318i/318Ci/318ti

★ 110 kW (148 hp) and 200 N·m (148 ft·lbf)

★
★ E85 Z4 2.0i

★
★ E87 120i

★
★ E90/E91 320i

See also

★ List of BMW engines

★ BMW N45