Engine swap information m40b16 to M44b19

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ThreeDLee
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Sat Aug 25, 2012 5:39 pm

Engine swap information m40b16 to M44b19

I have a 1990 318 touring with the m40b18 engine and wonder if anyone has information or has done a swap to M44b19, whats needed and is it fairly straight forward?

Thanks, lee.
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louie_corse
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Fri Aug 28, 2015 9:42 pm

I'd like to do te same thing to my e30 but apparentely, there's not much information.
Some say it's a bit more difficult due to electronics, but if we get everything from a donor e36, is it that difficult?

Some tips are wanted :D
Louie_corse from PT

BMW 318i M40 1987 - The Diplomat
jmc330i
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Fri Aug 28, 2015 10:07 pm

Ifs not difficult, the wiring is basically the same as an M52 swap.

Off the top of my head - There's an issue with the using the M44 PAS pump, you'll need E30 M40/M42 sump, engine arms/mounts and exhaust manifold and system (with lambda sensor bung welded in). The rad pipes are a bit of a pain as the M44 thermostat pipes are at a different angle to the M42 ones. The dipstick tube needs tweaking to fit around the belt and tensioners. The M44 temp sender won't work the E30 gauge.
James
'91 325i Sport
'93 318i touring 16v
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