Looking for a good electrical diagram for M73

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JRockland
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Looking for a good electrical diagram for M73

Post by JRockland »

As the title say..
I tried emanualonline.com and there manual is total junk, I think the guy who scanned it was drunk.
Sadly the worst pages are the one im looking for..
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Re: Looking for a good electrical diagram for M73

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JRockland
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Re: Looking for a good electrical diagram for M73

Post by JRockland »

Thank !!
Start working on the harness, it look like a massive mess until you realise bmw engineers made it look bad but in reality it is really straight forward.
OrchardPerformance
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Re: Looking for a good electrical diagram for M73

Post by OrchardPerformance »

That is something a lot of people find.
They are intimidated but the apparent complexity of the BMW stuff, once you get into it you realise it's actually pretty simple and standardised across a lot of their cars.
They like to evolve things so each generation is not too drastically different to the last under the skin.
Now keeping MRE and Proteus in stock in the UK, PM or slack for details.
bill
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Re: Looking for a good electrical diagram for M73

Post by bill »

how about some photos!!!????
JRockland
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Re: Looking for a good electrical diagram for M73

Post by JRockland »

If you really want a picture :D

Still waiting for the welder to come assemble the engine frame so I can start working on it :x
And also my shop is getting painted, might delay everything by a week or two. Anyway I'm in no hurry.
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JRD McLAREN
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Re: Looking for a good electrical diagram for M73

Post by JRD McLAREN »

Nice ...

You need engine wiring .. ??
it is the same as M20B25 .. but double ...
OrchardPerformance
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Re: Looking for a good electrical diagram for M73

Post by OrchardPerformance »

That's true for the M70 but not the M73.

M70 uses a pair of modified M1.3 motronic units but the M73 uses the much later more complex M5.2 ECU.
Now keeping MRE and Proteus in stock in the UK, PM or slack for details.
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