N42 Engine

The N42 is a series of I4 automobile piston engines from BMW designed in conjunction with MG Rover engineers with the intention of replacing the larger capacities of K series engines used in Rover products. However, this plan was dropped following the sell off in 2000. The series debuted with the E46 cars in 2001. Displacement ranges from 1.8 L to 2.0 L.

N42B18

The N42B18 is a 1.8 L (1796 cc) version producing 85 kW (115 hp) and 175 N·m (129 ft·lbf). It uses Bosch DME ME9.2 fuel injection. It has twin-balancing shafts. The N42B18 won the 1.4-1.8 L category of the International Engine of the Year competition for 2001.

Applications:

• 2001-2004 E46 316i/316ti

N42B20

The N42B20 is a larger 2.0 L (1995 cc) version. It produces 105 kW (143 hp) and 200 Nm with the same Bosch DME ME9.2 fuel injection. It has twin balance shafts.

Applications:

• 2001-2004 E46 318i/318Ci/318ti