OBC lights up ploblem - BMW Forum - BimmerWerkz.com
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 12-12-2003, 12:56 PM
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My '85 528e's OBC display does not light up. It was working fine but having trouble today. I think that OBC shoud be working.(I can see red indicater light on when timer start). Problem comes from diode dead or is that liquid crystal?

Is anybody know how to fix it? should replace only OBC bulb or have to replace OBC unit?
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#2 (permalink) Old 12-13-2003, 08:48 AM
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i will pm Extech

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#3 (permalink) Old 12-13-2003, 09:15 AM
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sounds like you need to change the light bulb

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#4 (permalink) Old 12-13-2003, 09:35 AM
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thanks EXtech

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#5 (permalink) Old 12-13-2003, 11:10 AM
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anytime!

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#6 (permalink) Old 12-13-2003, 02:16 PM
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I replaced and soldered a bulb on circuit board. The Bulb is 12v 75mA
instead of normal bulb. But it is working fine!

Also my 528e need to replace AT position indicator bulb, although
it is not easy due to circuit board design. I don't want to buy new board
from BMW dealer, price is $80!!

Any way, thank you so much for advice.

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