Author Topic: Swapping M40 to E36 DISA M42 - Step By Step  (Read 49712 times)

xsjado

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Swapping M40 to E36 DISA M42 - Step By Step
« Reply #15 on: December 26, 2007, 07:13:43 AM »
m40 gearbox and flywheel swap to e36m42 no sweat coz everything bolts up direct.

HaNasich

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Swapping M40 to E36 DISA M42 - Step By Step
« Reply #16 on: January 18, 2008, 12:24:22 PM »
So, after some long delay, here's the rest of the project 
AS I left last update – it was in the middle of updating the engine harness, originally from a 1990 IS for adopting the 1994 and on coil pack which uses one piece coilpack that contains the 4 coils instead of four separate coils.
So first u have to mark the coil wires coming from the engine harness, than cut up each connector to reveal the wires themselves.
The system I built so each coil gets a steady +, a steady – and a signal from the DME to spark each one at its correct timing.
Here's the engine harness side after cutting and marking the wires:



You can see the brown and green wires that are folded to the back of the bundle – these are the + and – as they are shared for all the coils in the new connecter, the only wires that are really separated and insolated are the command wires

Here are the command wires ready for soldering:


On the new plug side the situation is the same:

And


And this is how it looks like after initial soldering…


than we sould solder the green to green and brown to brown - to have the - and + for the spark's running and than wraping and insolating the wires is actually the most important part…

And that’s it – we're ready to use new coil-pack model
WowMom
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xsjado

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Swapping M40 to E36 DISA M42 - Step By Step
« Reply #17 on: June 24, 2010, 11:47:13 PM »
need help on how to wire back the m42 temp sensor to the m40 gauge cluster,and also the tachometer....HELP!!!!pics please!

HaNasich

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Swapping M40 to E36 DISA M42 - Step By Step
« Reply #18 on: July 09, 2010, 05:39:40 PM »
Quote from: xsjado;93890
need help on how to wire back the m42 temp sensor to the m40 gauge cluster,and also the tachometer....HELP!!!!pics please!


send me a pm - i can help you with that
WowMom
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xsjado

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Swapping M40 to E36 DISA M42 - Step By Step
« Reply #19 on: July 12, 2010, 10:01:30 AM »
http://www.akgmotorsport.com/e30convpins.html


HANASICH..would this be useful to me??

HaNasich

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Swapping M40 to E36 DISA M42 - Step By Step
« Reply #20 on: July 13, 2010, 10:46:07 AM »
Quote from: xsjado;94581
http://www.akgmotorsport.com/e30convpins.html


HANASICH..would this be useful to me??




im not sure, this should work with the M50 / M52 engines.
im not sure if the M40 / M42 harness's goes the same way.
i will try to find the schematics and upload it here soon.
WowMom
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Mr Spliffy

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Swapping M40 to E36 DISA M42 - Step By Step
« Reply #21 on: July 16, 2010, 02:50:52 AM »
Hey guys.
If I had a jap M42 and wish to swap it into my M40 318i, would it be possible to use everything else from an e36 318i(m42 ZA spec)? The ecu, harnes, key and transponder (to keep ews) everything, the question i have is would my guage cluster work i.e. temp and tacho. I will be posting this same q in the other similar thread. Thank you

HaNasich

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Swapping M40 to E36 DISA M42 - Step By Step
« Reply #22 on: July 18, 2010, 02:34:05 AM »
like i did, you will have to adapt that original harness to the C101 connector so that the gauge cluster will work.
in addition, im not certain how a E36 EWS system will work in with a E30 cluster, as i remember that the EWS has also something ot do with the display.


best thing to do is to use <1994 ECU and harness along with any year M42 engine
« Last Edit: July 18, 2010, 03:18:51 AM by HaNasich »
WowMom
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Romrog318is

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Swapping M40 to E36 DISA M42 - Step By Step
« Reply #23 on: July 18, 2010, 09:51:44 AM »
why not just get an E30 M42 harness then just do whatever u need to do with the C101?
[SIGPIC][/SIGPIC]
no more M42

Mr Spliffy

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Swapping M40 to E36 DISA M42 - Step By Step
« Reply #24 on: July 19, 2010, 06:02:27 AM »
Please forgive me if I'm hi-jacking, its just that there aint alota info on M42 swaps.
The South African spec E30's never came with an M42 so I'm forced to use the E36 harness.
I don't understand why more people won't swap M42's into there M40 powered 316i and 318i's.

HaNasich

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Swapping M40 to E36 DISA M42 - Step By Step
« Reply #25 on: July 20, 2010, 03:09:08 AM »
Here in Israel, M42 E30 was never sold officialy.
beside one or two cars brought by tourists, no M42 E30 are available, neither the oficial BMW dealer will agree to provide parts / service to those cars

so basically, we shared the same problem.
my way to solve this issue was to use E30 M42 harness and modify its C101 connector.
another friend to whom i've helped swapping an M42 in used and E36 harness, but pre 1994, earning the DISA system along with stock knocking sensors (which is great if you want to boost your engine)
WowMom
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Mr Spliffy

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Swapping M40 to E36 DISA M42 - Step By Step
« Reply #26 on: July 26, 2010, 05:24:33 PM »
Is it possible to keep the aircon and power steering? It gets very hot here in summer so I need an AC, the ladies like that anyway too so I'd be happy if I can.

Gapin it

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Swapping M40 to E36 DISA M42 - Step By Step
« Reply #27 on: August 01, 2011, 06:05:42 AM »
Anyone got any detailed information on using an e36 loom for an e30 m42 swap?

Im seriously considering doing the exact same swap.

HaNasich

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Swapping M40 to E36 DISA M42 - Step By Step
« Reply #28 on: August 03, 2011, 03:40:03 AM »
it is totally possible to use E36 M42 loom, but make sure it is pre 1996 one, as the EWS become standard in 1996, adding another level of complexity to the swap.
basically, you everything should plug in ok, the only differences is the EGR that E36 supports and E30 doesnt, plus - you may also need to do more accurate E30 to E36 routing of the electrical lines in order to connect the C101 conector ok.

i think al of this is covered here in M42club...
WowMom
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Gapin it

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Swapping M40 to E36 DISA M42 - Step By Step
« Reply #29 on: August 03, 2011, 10:52:29 PM »
Ive looked but can't seem to find. So if i got a 1995 engine loom and ecu it would be pretty straight forward with everything like the wiring?