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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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Old 04-13-2004, 02:09 PM   #1 (permalink)
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Ok so my tach and OBC backlights have been out for quiet some time now and i cannot figure out why. For all it seems the lights are still good and theres no bad wires on the instrament gauge side but i think perhaps its on the OBC side that theres a loose wire. Now i just have to get OBC out. Do i remove the surrounding panel first?
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Old 04-13-2004, 02:37 PM   #2 (permalink)
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i 'think' there is a way to get to it from the left side of the glove box, if not, you'll probably just have to start removing the front panels on the console. it may be worth your while to check fuses 10 and 12 since theyre part of the illumination of the cluster and obc
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Old 04-13-2004, 02:50 PM   #3 (permalink)
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yea i nknow ive already checked, all the fuses are good.
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<span style='font-family:Geneva'><span style='font-size:14pt;line-height:100%'><span style='color:red'>Fox</span></span> <span style='color:gray'>the Pirate</span>
Diplomacy is saying &quot;nice doggy&quot; until you find a rock.</span>

I live my life one quarter mile at a time, and for those 23 or more seconds I'm free.
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Old 04-14-2004, 04:38 AM   #4 (permalink)
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I just took mine out cause i'm having the same problem. Is your problem when the OBC goes out your speedo goes right ? and when u give it a good smack sometimes it'll go on ( the obc ) the speedo works?

Well this is what i did.

Remove the Center Consoles (e brake area and shifter area) remove that "ash tray" by taking out the size 10 screw, i think and it should be easily taken out first unclip the rubber Ebrake boot.

once you remove that console, remove the 2nd one which is where the Power window buttons are mounted on. Take of the shifter boot and shifter fillings and there should be another size 10 screw there remove it.

Now remove the coin holder and AC / or lighter plug. theres 2 phillips screws in there.

Now under the FRONT PANEL where your OBC is theres 2 phillips screws holding that console and 2 plastic locks on the side on the left of the glove box and one on the right side of the steering wheel. Should be able to pull it out.

Now remove your radio, and 2 out of the 4 buttons where the hazard defrost etc etc.

pull out the 2nd and 4th button and you should see 2 screws there Phillips and be able to pull out that face the whole thing. The OBC itself has 4 phillips screws on it then u may remove it after unplugging the POwer/Data cable. Don't forgot to take off the lock on that power cable. Disable the lock by pulling it back then pulling the actual cable
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Old 04-14-2004, 04:39 AM   #5 (permalink)
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btw when u get it working tell me how u fixed it because, mine still doesn't work :*(
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Old 04-14-2004, 02:08 PM   #6 (permalink)
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Damn thats a lot of work to remove a friggen OBC unit. But yea ill tell you why it doesnt work. Its the tach and temp side that goes out on mine. The OBC used to work during the day and when you turned on the lights they would go out, now they stay out all the time. I hope its just a bad bulb or a bad wire.
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<span style='font-family:Geneva'><span style='font-size:14pt;line-height:100%'><span style='color:red'>Fox</span></span> <span style='color:gray'>the Pirate</span>
Diplomacy is saying &quot;nice doggy&quot; until you find a rock.</span>

I live my life one quarter mile at a time, and for those 23 or more seconds I'm free.
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