in case I get motivated
Since this is a DIY category, then you may have better luck in the E36 sub-category forum, however, to try and answer your questions. IF you just swapped out the OBC with another OBC, then the problem is likely the OBC interpretation of the signal, or it is a malfunction. If you did an OBC upgrade, where you spliced the wires, then the problem could be a wiring issue.
I would likely borrow a friends OBC (make sure it works), swap out OBC's and give it a try first if it works. If it doesn't, you got a faulty OBC. If it exhibits the same behavior, you could have faulty wiring. I would just diagnostic the problem one step at a time. :-)
Hope this helps....
Paul
Current Cars:
1995 BMW 325i
2013 BMW X3
2017 Infiniti QX30
Past Cars:
1997 BMW M3
2011 Chevrolet Avalanche LTZ
2010 GMC Terrain
1998 BMW 328is
2006 BMW 325i
2007 Saab 9-3ss AERO
2004 Saab 9-3ss Linear
2003 PT Cruiser
2001 Volvo S40
1990 Honda Accord EX-R
i had already thought the above but! : the wiring is good because the previews obc working great...and i have already tested another obc and does the same thing! thats the reason im asking about different programming of the obc...is this exist?
awesome DIY, i've been trying to do this forever.
I have posted some pretty detailed instructions for replacing a 7- or 11-button MID with an OBC, that I wrote them some years back for the BMW CCA Roundel magazine. They don't have a lot of pictures, but they explain many details and offer a number of tips and tricks. The first half of the instructions, on replacing the turn stalk, appeared in 1997.
As our cars were still new back then, the instructions try to replicate or improve on the factory's work, and avoid anything that could jeopardize the warranty. (I had a contentious German Meister, at the time, who was just itching to deny a claim.) For example, the instructions don't add the CODE function, partly because it is just too easy to defeat, but mostly because it was an added and possibly expensive complication. They also mention dealer coding (which you have to do for an unused OBC) and what "faults" a dealer might see when they run diagnostics: so that they don't draw the wrong conclusions from your work.
The instructions also have a nifty schematic that summarizes the retrofit on a page.
Last edited by johnf; 06-24-2009 at 11:07 AM.
awesome tutorial man, i printed for my bro, he's wanted to do this for a while.
Hi delmarco,
Can i translate and post your guide in an italian forum?
Of course with all the right credits
Last edited by Cardedon; 06-27-2009 at 11:06 AM.
wow thats pretty cool.
excited to do this upgrade tm!
One quick question,
I have a euro E36 323i and i'm currently parting an e36 320i with a 18 button OBC on it.
My car doesn't have the required plug for the big OBC, but would it be possible to get the wiring loom and everything i need from the other car? Or is it more easy to just wire it by myself?
Thanks,
Follow the instructions and do it yourself. There are really four or five new wires you have to drag to locations behind the cluster and/or to the glove box. It is likely harder to remove the original wiring from car that you are parting out then having to add 4 new wires....
Paul
Current Cars:
1995 BMW 325i
2013 BMW X3
2017 Infiniti QX30
Past Cars:
1997 BMW M3
2011 Chevrolet Avalanche LTZ
2010 GMC Terrain
1998 BMW 328is
2006 BMW 325i
2007 Saab 9-3ss AERO
2004 Saab 9-3ss Linear
2003 PT Cruiser
2001 Volvo S40
1990 Honda Accord EX-R
Think I will be doing this... Got another E36 has 18 OBC installed but didn't work... pull it out to find only a black connector no white lol.
• D R I V E A D D I C T • Eurosport TS E36 M3 • E36 M3/4 • 330CI ZHP •
Im trying this tomorrow have all the stuff except for the game plan but this thread with pictures should get me there.Thanks
Hi, Paul (brunp):
So after you found and spliced into the black/green wire on the red connector behind your glovebox, does your CODE feature work properly on your retrofitted OBC? I guess that pin 15 is indeed populated in that red connector, and there is no need to source a properly sized contact?
Also, for everyone, did your contacts recycled from your extra X1070 (black) OBC connector work properly in the X16 (white) connector on the instrument panel? Or do I need to source the correct Siemens contact (BMW P/N 61 13 0 005 201 - thanks, johnf!)?
BTW, my car is a '98 M3, currently with an 11-button unit. Thanks very much in advance!
P.S. OP (delmarco), thanks for taking the time to write and post this up!
Answer to question 1: I took the wrong picture. I assumed originally it was for check control, but it was for CODE instead. I did try it a little while later and it does work. I can type in a code, turn off car and then have to enter the code before I can proceed future.
not sure I follow your second question....regarding contacts....you referring to pushing the PIN into the missing slot in the one instrument panel pin-out? PIN 21, I think or whatever. If so, then yes....recycling the one pin worked....I just had to insert it carefully and used a electronic plyer to push it in to the front.....
Current Cars:
1995 BMW 325i
2013 BMW X3
2017 Infiniti QX30
Past Cars:
1997 BMW M3
2011 Chevrolet Avalanche LTZ
2010 GMC Terrain
1998 BMW 328is
2006 BMW 325i
2007 Saab 9-3ss AERO
2004 Saab 9-3ss Linear
2003 PT Cruiser
2001 Volvo S40
1990 Honda Accord EX-R
Wow, that was quick! Thanks very much for the response.
On the second question, yes, that was what I meant, the contact needed to populate pin 21 in the white IP connector. Sorry about the confusion.
All right, I'm set to do this now. Again, I appreciate the information!
Last edited by tnE30fan; 03-18-2010 at 12:06 PM.
Hey guys, I am in the middle of this DIY, and have a question.
When you say "e. Pin Slot 15 (Blue/Purple/White); X17 Pin 24 (Odometer)".
Do I just splice into the old connection, like the other ones? Or do I splice into the old connection AND X17 Pin 24?
Thanks, quick response would be appreciated!
if you have r6 engine and the obc seems to be "miscalibrated", then it means that the obc came from r4 engined car (and vice versa).
need to get one from r6 engined car...
Last edited by vull; 03-20-2010 at 06:45 PM.
Current Cars:
1995 BMW 325i
2013 BMW X3
2017 Infiniti QX30
Past Cars:
1997 BMW M3
2011 Chevrolet Avalanche LTZ
2010 GMC Terrain
1998 BMW 328is
2006 BMW 325i
2007 Saab 9-3ss AERO
2004 Saab 9-3ss Linear
2003 PT Cruiser
2001 Volvo S40
1990 Honda Accord EX-R
Ok, so just splice the Pin 15 to the new connector then?
Thanks.
yes.....what occupied Pin 15 on the old connector is spliced to Pin 15 on the new connector....that is all there is to it...
All the wires from the old collector should go to the same pin-outs on the new connector except for the power/grd which go to the new locations on the second connector that comes with the 18 button OBC kit. If you are coming from an 11-button variant, then you should have one new wire headin' to the glove area and I believe 3 new wires getting routed to the instrument cluster area.
Hopefully, this clarifies it all. :-)
Paul
Current Cars:
1995 BMW 325i
2013 BMW X3
2017 Infiniti QX30
Past Cars:
1997 BMW M3
2011 Chevrolet Avalanche LTZ
2010 GMC Terrain
1998 BMW 328is
2006 BMW 325i
2007 Saab 9-3ss AERO
2004 Saab 9-3ss Linear
2003 PT Cruiser
2001 Volvo S40
1990 Honda Accord EX-R
Awesome, thanks for clearing that up
Hey Paul,
I am close to completing the swap, but I have encountered a problem...
My check-control wont work!. If I press CHECK on the 18 button, the screen just goes black. My pin slots 1,2,3,4,5 on Black OBC connector are all just spliced into thier matching colors at the OBC. Is this correct?
Also, My temp was initially working, but after re-wiring a few wires to try and get the check control to work, and plugging OBC back in, now the temp doesnt work either!!! (just flashes -35 f....)
I read somewhere that it may take the temp a while to recalibrate after uplugging the OBC. Do you think that this is the case with mine? I donno, because the F begins to flash, as though its not working at all....
Ugh, im frustrated...so close to being done...
Any ideas?
Last edited by dwarfy123; 03-26-2010 at 09:18 PM.
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