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5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

 
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#1 (permalink) Old 12-28-2004, 08:12 AM
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Hi

Have a 520i SE 1992(J). E34 Model. M50 Engine and im wondering if i purchase a on board computer will i just be able to connect it up to the current wiring or will it need some more work. I know it fits into the the space that the clock sits in. Does anyone know or has done this b4? Many thanks
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#2 (permalink) Old 12-28-2004, 08:36 AM
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I'd been wondering the very same same, I've a 92 E34 525i M50. Any help would be appreciated.....

<span style='color:blue'><span style='font-size:9pt;line-height:100%'><span style='font-family:Arial'>because life's too short not to..........</span></span></span>
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#3 (permalink) Old 12-29-2004, 11:40 AM
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Machinehead, I found some good info here

http://www.bmwe34.net/e34main/upgrade/OBC.htm
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#4 (permalink) Old 01-03-2005, 01:12 PM
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i'm working on the same thing. I called vines auto in alabama. they were very helpful. http://vinesauto.com/

if you can still faintly see a read out all you need is the light circuit board. if the obc is out completely you need to replace it. Vine's has light circuit boards for $25 and obc for $50.00. i need the whole thing : (

gonna try cleaning the connctions first though. they look corroded.

Removal was easy. took about 15 minutes (1990 525).

1) pop of plastic covers on each side of radio, obc, ac area.
2) unscrew 2 screws each side
3) pull right side of plasitc cluster thingy out of dash
4) diagnally (towards passenger side) pull left side out around tabs where the srews were
5) pull radio and radio bracket out
6)pull lever on top of obc.
7)it pops out
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#5 (permalink) Old 01-03-2005, 06:34 PM
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oops and yes it plugs right in. ( i thought i was replying to the other thread)

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