Coding M modules in a non M car

aus335iguy

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Nov 18, 2017
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Hi guys.I'm really interesting what you exploring.I have a 1M,I just want change my M button setting,Hold 5 or 10 seconds to active the DSC OFF. Is that possible by coding? My car build in 6/2012.
I thought that DSC off as you’re asking was a standard feature ??
“The M Dynamic Mode aka MDM cannot be programmed to be activated by the same M button. Thus it's triggered by the MDM button (blue circle) located at the dashboard. As usual with BMWs, a long press of said button will deactivate DSC completely. “
 

aus335iguy

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Nov 18, 2017
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To program it to the M button on the steering wheel requires the same effort outlined in the other thread
In other words a custom program in your DME OR an external can shield device that does the same.
 

yiruiguan

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Mar 2, 2021
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To program it to the M button on the steering wheel requires the same effort outlined in the other thread
In other words a custom program in your DME OR an external can shield device that does the same.
That is what I want. I will read this.thx!
 

RSL

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Aug 11, 2017
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Logic switch in the DME might disable DSC immediately with M button. Might try and confirm if it works.
 
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RSL

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Wheel button definitely doesn't do squat without the M drive SZL, and probably 1M/M3 DSC flash to go with it. If it worked on anything for full off with wheel button, actual 1M would be it.
 

aus335iguy

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Is this then an accurate statement “For Non M SZL people arduino would be the only way forward. The standard SZL does not send the correct messages and cannot be flashed with M ZB”
 

RSL

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Is this then an accurate statement “For Non M SZL people arduino would be the only way forward. The standard SZL does not send the correct messages and cannot be flashed with M ZB”
Almost. Standard SZL will work with M ZB (that's what I had at first), there just isn't any functionality difference than normal non-M that I noticed. If you have non-M SZL at all, CAN is the way forward for button to work.

For the button to work with no external CAN, need M SZL, M DSC and coding. I haven't tested yet, but does look like it would work on any DME rom with logic enabled.
 
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KClemente

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Nov 26, 2019
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Almost. Standard SZL will work with M ZB (that's what I had at first), there just isn't any functionality difference than normal non-M that I noticed. If you have non-M SZL at all, CAN is the way forward for button to work.

For the button to work with no external CAN, need M SZL, M DSC and coding. I haven't tested yet, but does look like it would work on any DME rom with logic enabled.
Just to clarify, you can flash an M zb onto the szl but it still wouldn't send the correct messages right? How do you flash the szl anyways?

I'll retrofit a later model dsc unit one of these days and finally get an M button
 

RSL

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Just to clarify, you can flash an M zb onto the szl but it still wouldn't send the correct messages right? How do you flash the szl anyways?

I'll retrofit a later model dsc unit one of these days and finally get an M button
SZL is set through DSC.
 
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AzNdevil

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Nov 4, 2016
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just a quick update..i picked up a m3 cluster and szl and its installed in my car now
still looking for a cheap 09ish non m 6 cylinder/m3 dsc + yaw sensor before i can join you guys on the hunt for m drive

cluster needs kph gauge faces... the speed is wrong and i cbf to change my vo to code it so i reads properly

IMG_20210309_020341.jpg
 

Olza

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Feb 2, 2020
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maybe not correctly, but asking help for information of some bits of DSC CAN 0xB6h
1615391884997.png


i need byte 4 bits 6-7 definition. its like bits 4-5 status (MSR or ASC active) but something else. maybe only M3 DSC. anyone?