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E36 M3 (1992-1999) {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999


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Old Tue, Apr-25-2017, 01:46:33 AM   #1
M3Looza
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Default Onboard computer

Is there a way to find out if my car came with a 7,11, or 18 button onboard computer? I got a car recently that had it missing and I want to put it back in. I'm just not sure which one it came with. Thanks
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Old Tue, Apr-25-2017, 01:55:07 AM   #2
NolliM3
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Default Re: Onboard computer

All M3s had the 18 button one...I believe.
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Old Tue, Apr-25-2017, 02:08:29 AM   #3
M3Looza
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Default Re: Onboard computer

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Originally Posted by NolliM3 View Post
All M3s had the 18 button one...I believe.
Cool thanks. I have a 95 M3. I just don't want to buy one and have to do wiring work for an 18 button lol.
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Old Tue, Apr-25-2017, 02:12:09 AM   #4
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Default Re: Onboard computer

Quote:
Originally Posted by NolliM3 View Post
All M3s had the 18 button one...I believe.
That is 100% incorrect. The full OBC was an option.
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Old Tue, Apr-25-2017, 02:23:56 AM   #5
NolliM3
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Default Re: Onboard computer

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Originally Posted by sivikvtec View Post
That is 100% incorrect. The full OBC was an option.
Good to know...thanks!
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Old Tue, Apr-25-2017, 02:34:34 AM   #6
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Default Re: Onboard computer

Run the VIN through a VIN decoder. I believe S554 is the 18 button option.
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Old Tue, Apr-25-2017, 02:51:46 AM   #7
87bimmer
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Default Re: Onboard computer

If the wiring is still there, the 7 and 11 button OBC's connect with a single black plug, the 18 has a black and a white plug.
I just did the conversion from 11 to 18, it only took a couple hours and is well worth it in my opinion.
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Old Tue, Apr-25-2017, 11:28:22 AM   #8
M_Parallel
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Default Re: Onboard computer

It was indeed an option, here in EU as well.

And for the sake of correctness (screw this internet talk) there is only one (version of) OBC.
You could opt for the OBC or not. Not I want x-button OBC.

The unit is called MID (Multi Info Display)

The OBC is the 18-button MID. The other MID's are no OBC.
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Old Tue, Apr-25-2017, 05:58:40 PM   #9
NolliM3
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Default Re: Onboard computer

Quote:
Originally Posted by M_Parallel View Post
It was indeed an option, here in EU as well.

And for the sake of correctness (screw this internet talk) there is only one (version of) OBC.
You could opt for the OBC or not. Not I want x-button OBC.

The unit is called MID (Multi Info Display)

The OBC is the 18-button MID. The other MID's are no OBC.
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Old Tue, Apr-25-2017, 06:40:34 PM   #10
John Firestone
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Default Re: Onboard computer

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Originally Posted by M_Parallel View Post
It was indeed an option, here in EU as well....
Here is some probably useless trivia for you. What most think of as an on board computer, combines up to three different options: the actual OBC V (option 554), parked car ventilation (option 537) and check control (option 542). In 1993, you could order an OBC V with or without parked car ventilation, and depending on the model, without or without check control.

I don't think the U.S. ever got parked car ventilation: perhaps to reduce the risk of a dead battery over the longer American warranty period?(*) In Europe, it was merged into the OBC V to become the single option 554 – for 200 DM less money!

(*) On second thought, the more boring – and therefore more likely reason – the U.S. did not get PCV is the prequel equivalent of decontenting.

Last edited by John Firestone; Tue, Apr-25-2017 at 06:51:34 PM.
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Discussing Onboard computer in the E36 M3 (1992-1999) Forum - {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999 at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)