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BMW N42 engine: specs and known issues

The BMW N42 is a naturally aspirated inline-four petrol engine with a 1.8- and 2.0-liter displacement, produced 2001–2004, per Wikipedia. We do not have repair prices for it yet.

Specs and history from Wikipedia (revisions listed below)

N42 at a glance

Production	2001–2004	[1]
Configuration	Inline-4	[1]
Displacement	1796 cc (109.6 cu in) / 1995 cc (121.7 cu in)	[1]
Fuel type	Petrol	[1]
Valvetrain	DOHC, with VVT & VVL	[1]
Block	Aluminium	[1]
Cylinder head	Aluminium	[1]

Cars with the N42

Cars and chassis codes named in Wikipedia's article on this engine. It can include related or successor models, so treat it as a lead and check your exact car. Open a linked model to see its repair costs.

Model pages for the N42

Chassis pages whose cars, per Wikipedia, used this engine.

E46 3 Series

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Before and after

Predecessor: BMW M43
Successor: BMW N46

Related engines

BMW M47 (1999–2007)
BMW N45 (2004–2011)
BMW N62 (2001–2010)
BMW M54 (2000–2006)
BMW M56 (2002–2006)

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Common questions

When was the BMW N42 engine produced?

2001–2004, per Wikipedia.

Sources

Wikipedia: BMW N42 (revision 1378842793, read 2026-10-23)