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3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 04-08-2009, 08:55 PM
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dash computer lightbar

Hi All, I own a 1987 - 325 convertible. The light went out on my computer. I have the replacement lightbar. Any ideas on how to install it. Thanx, Crickettman
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#2 (permalink) Old 04-09-2009, 01:55 AM
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Post It can get a bit involved

The On-Board Computer (OBC). has good info. I thought the best contributions for me on that page were from Kent Shephard and Steve Fox.

The picture I've attached is a backside view of the heater/AC control panel. The radio will have to come out, as well as all the plastic plugs and switches at the top of the control panel. At that point the top two screws that anchor the control panel can be removed, being careful not let the screws fall into the rat's nest of wires and cables below.

What's next is to tip the top of the control panel toward you to expose the screws on the outer edge of the control panel that secure the OBC. You may have to work them off with a set of needle nose pliers until the light bar is exposed. Grab the light bar with the pliers and give it a firm tug to get it out of the OBC. Once the light bar is removed, check to see that you didn't leave any parts (like bulbs) inside the OBC before you slide the new light bar in.

Finally check to see the new light bar actually works before putting it all back together.

Good luck.
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#3 (permalink) Old 04-10-2009, 01:23 PM
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+1
you should have the Bently manual, check Pelicanparts articles too
take your time try not force anything or scratch the sides of OBC with screw driver.
use plastic scraper or painters tape on metal scraper screw driver if needed
try not to drop stuff into the black hole
try not to break bulb or wires, dont get finger prints/ grease etc on new bulb
clean up while you are in there.
make sure you get all the screws back in when putting it back together or the whole thing will wiggle squeak.
Its fun when it works.
set the speed alarm to 156 mph, lol

here it is:
Pelican Technical Article: OBC light replacement for the BMW E30 3 Series

Cheers,
Richard Fitz
'87 325is Delphin Metalic


Last edited by Rfitz25; 04-10-2009 at 01:32 PM.
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