engine code q and a

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sam2015
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Joined: Thu Aug 06, 2015 11:00 pm

Fri Aug 07, 2015 9:17 am

hello people im new to the e30 world having just bought an e30
318i could someone explain the engine codes to me and tell me what i have in mine ?
thanks sam
daimlerman
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Fri Aug 07, 2015 9:59 am

Four engines have been used in E30's

M10 4 cylinder carberettor and injection
M40 4 cylinder all electronic in two capacities
M42 4 cylinder twin cam all electronic
M20 6 cylinder three capacities and injection/electronic depending on version

That's the short story,so your 318i could be either an M10 or an M40,depending on when it was built and if it has been buggered about with since!

There's probably a wiki article(see zone wiki button on the top of the page)which will give more detail.
Youth is wasted on the young.
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