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Old Sat, Jun-25-2011, 08:33:35 PM   #1
terraphantm
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Default M-track Retrofit: Success

I posted the video in another thread, but now that I think about it, this probably deserves its own thread

http://www.youtube.com/watch?v=_2xoX...456&feature=iv

So the retrofit is pretty simple if you know how to do coding. Basically all you need to do is:
  1. Add option code 7MA to the vehicle order
  2. Recode the DSC module (MK60)
    • Modify the parameters for the steering angle sensor and rear caliper if you didn't retrofit the corresponding ZCP bits.
  3. Recode the instrument cluster (AKMB)

Unlike a real ZCP, the M-track mode is controlled entirely through the DSC button. Single press = m-track. Press + hold = DSC off. I realize that holding the button is annoying to some, but it doesn't bother me since I saved several thousand dollars over a real ZCP :P. + We all still have cruise control!

I'm not sure if it's possible to retrofit the M-track button and have it function like a real ZCP without retrofitting the ZCP DSC module (it's not a simple coding issue since code-wise there's no difference between my car and a ZCP right now). I suspect that the only difference between the modules is how they interpret the button presses. For all I know, this change is accomplished by a jumper or something - if anyone has high-res pictures of the DSC PCBs (both ZCP and non) that'd be great!


^ M-track and cruise control

Edit: I made a pdf with more in-depth instructions. It's attached to this post
Attached Files
File Type: pdf Retrofitting M-track Mode.pdf (563.6 KB, 3799 views)
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Old Sat, Jun-25-2011, 09:07:19 PM   #2
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Default Re: M-track Retrofit: Success

That is sick! Congratulations on figuring it out Too bad I can't get this done since my car is an '02 and the M-Track icon is not a part of the instrument cluster
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Old Sat, Jun-25-2011, 09:13:06 PM   #3
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Default Re: M-track Retrofit: Success

Yea I forgot to mention that, it needs to be a 2003 (September 2002 build) or newer M3 - that's when BMW switched to the MK60 module on the M3. Interestingly enough, even though the ZCP didn't exist until 12/2004, the 2003 cars accept option code 7MA without issue
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Old Sat, Jun-25-2011, 09:31:20 PM   #4
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Default Re: M-track Retrofit: Success

Very nice. Makes me wish mine was MK60.
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Old Sun, Jun-26-2011, 12:10:06 AM   #5
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Default Re: M-track Retrofit: Success

Interesting!

I hope we can make this work with a "m track mode" button.

I'd love to be able to have M track mode, but not at the expense of quick DSC off...
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Old Sun, Jun-26-2011, 01:16:32 AM   #6
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Default Re: M-track Retrofit: Success

Quote:
Originally Posted by terraphantm View Post
Yea I forgot to mention that, it needs to be a 2003 (September 2002 build) or newer M3 - that's when BMW switched to the MK60 module on the M3. Interestingly enough, even though the ZCP didn't exist until 12/2004, the 2003 cars accept option code 7MA without issue
That's when the CSL production started .... my car was 8 months early, 2/02 lol
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Old Sun, Jun-26-2011, 01:48:57 AM   #7
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Default Re: M-track Retrofit: Success

I have a spare cluster. I think its from a 2005.
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Old Sun, Jun-26-2011, 01:50:58 AM   #8
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Default Re: M-track Retrofit: Success

Thats interesting. What exactly does the "m-track" do. What did you use to go about changing the mk60 code?
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Old Sun, Jun-26-2011, 01:53:34 AM   #9
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Default Re: M-track Retrofit: Success

Quote:
Originally Posted by cntrvrsy View Post
That's when the CSL production started .... my car was 8 months early, 2/02 lol
Uggh...same here.
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Old Sun, Jun-26-2011, 01:55:38 AM   #10
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Default Re: M-track Retrofit: Success

OP - Did you test it and does it indeed open the limits of DSC like the 'real' ZCP M-track mode? Can you please provide a bit of greater insight on the overall experience? I have never driven a ZCP

Quote:
Originally Posted by Obioban View Post
Interesting!

I hope we can make this work with a "m track mode" button.

I'd love to be able to have M track mode, but not at the expense of quick DSC off...
Curious...Do you have any issue other than the button hold?

I think I prefer the DSC button route as opposed to the M track-specific button...seems easier and less of a hassle, plus it's one-stop shopping for all your DSC needs! LOL

Now I just need someone who can do this programming in my area...I will travel from Evansville to Nashville to Louisville...Any takers?
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Discussing M-track Retrofit: Success in the Coding and Tuning Forum - Discuss all avenues of coding and tuning here! at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)