BMW N42

Compared with its M43 predecessor, the N42 features a DOHC valvetrain, VANOS (variable valve timing) and an aluminium engine block.

[5][6] The N42B18 has a displacement of 1,796 cc (109.6 cu in),[1] uses Bosch Motronic ME9.2 engine management[7] and has twin-balancing shafts.

[citation needed] Applications: The N42B20 has a displacement of 1,995 cc (121.7 cu in),[1] uses Bosch DME ME9.2 fuel injection and has twin-balancing shafts.

[8] It was produced from 2001-2004 and only sold in several countries, where taxes favoured cars with smaller displacement engines.

The N40 is based on the BMW N42 engine and uses the same crankcase, pistons and bore size of 84 mm (3.3 in).