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|predecessor=BMW M43 |successor=BMW N46 }} The BMW N42 is a DOHC four-cylinder petrol engine which replaced the BMW M43 and was produced from 2001-2004.[1][2]

BMW N42 engine
Overview
Production	2001–2004
Layout
Configuration	Inline-4
Displacement	1,796 cc (1.8 L) 1,995 cc (2.0 L)
Cylinder bore	84 mm (3.31 in)
Piston stroke	81 mm (3.19 in) 90 mm (3.54 in)
Block material	Aluminium
Head material	Aluminium
Valvetrain	DOHC, with VVT & VVL
Combustion
Fuel type	Petrol

The N42 serves as the basis for the smaller N40 engine (which does not have Valvetronic).

The N42B18 won the 1.4-1.8 L category of the International Engine of the Year awards for 2001.[3]

In 2004, the N42 was replaced by the BMW N46 four-cylinder engine.

Design

Compared with its M43 predecessor, the N42 features a DOHC valvetrain, VANOS (variable valve timing) and an aluminium engine block.[4] It was the first BMW engine to have Valvetronic (variable valve lift).[5][6]

Versions

Version	Displacement	Power	Torque	Year
N42B18	1,796 cc (109.6 cu in)	85 kW (114 bhp) at 5,500 rpm	175 N⋅m (129 lb⋅ft) at 3,750 rpm	2001-2004
N42B20	1,995 cc (121.7 cu in)	105 kW (141 bhp) at 6,000 rpm	200 N⋅m (148 lb⋅ft) at 3,750 rpm	2001-2004

N42B18

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:

• 2001-2004 E46 316i and 316ti

N42B20

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.^{[citation needed]} The N42B20 revs to 6600 rpm

Applications:

• 2001-2004 E46 318i/318Ci/318ti

See also

• BMW
• List of BMW engines

References

На других языках

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- [en] BMW N42

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[it] BMW N42

Il BMW N42 è un motore a scoppio a benzina per uso automobilistico prodotto tra il 2001 ed il 2004 dalla casa automobilistica tedesca BMW.

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