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BMW M30 engine: specs and known issues

The BMW M30 is a naturally aspirated inline-six petrol engine with a 2.5-, 2.8-, 3.0-, 3.2-, 3.3- and 3.4-liter displacement, produced 1968–1995, per Wikipedia. We do not have repair prices for it yet.

Specs and history from Wikipedia (revisions listed below)

M30 at a glance

Production	1968–1995	[1]
Configuration	Straight-6	[1]
Displacement	2494 cc (152.2 cu in) / 2788 cc (170.1 cu in) / 2986 cc (182.2 cu in) / 3210 cc (195.9 cu in) / 3295 cc (201.1 cu in) / 3430 cc (209.3 cu in)	[1]
Fuel type	Petrol	[1]
Valvetrain	SOHC	[1]
Block	Cast iron	[1]
Cylinder head	Aluminium	[1]
Fuel system	Carburetor / Fuel injection	[2]

Cars with the M30

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.

E3 2500
E9 2.5 CS
5 Series 525, 528, 528i, 530i, 530 MLE, 533i (E12)
5 Series 525i, 528i, 533i, 535i / 535is / M535i (E28)
7 Series 725i, 728, 728i, 730, 733i, 732i, 735i / L7, 745i (E23)
E3 2800 / 2.8L
E9 2800 CS
E3 Bavaria
6 Series 628CSi, 630 CS, 630CSi, 633CSi, 635CSi / L6, 635CSi (E24)
E9 3.0 CS
E9 3.0 CSL
E3 3.0 S / 3.0 L / Bavaria
E9 3.0 CSi
E3 3.0 Si

Show 5 more

Model pages for the M30

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

E30 3 Series E12 5 Series E28 5 Series E34 5 Series E24 6 Series E23 7 Series E32 7 Series

We don't have prices for the M30 yet.

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Before and after

Predecessor: BMW M20
Successor: BMW M50

Related engines

BMW M20 (1977–1993)
BMW M10 (1962–1988)
BMW M88/S38 (1978–1989)
BMW M102 (1980–1982)
BMW M106 (1982–1986)

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Common questions

When was the BMW M30 engine produced?

1968–1995, per Wikipedia.

Sources

Wikipedia: BMW M30 (revision 1377045226, read 2026-10-23)
Wikipedia: List of BMW engines