Power Door Locks - BMW Forum - BimmerWerkz.com
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 04-11-2005, 05:06 PM
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I own a 1990 e30 covertible, parked it for a week came back and the door locks don't work anymore whereas they worked fine up until that point. I double checked the fuses and found nothing. I don't know if it makes a difference at all, but the battery died when I let it sit there.

Thanks
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#2 (permalink) Old 04-11-2005, 05:19 PM
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offabroadway is an unknown quantity at this point
Heh ghead you're gonna have one hell of a time getting those locks working if you have no battery power. When the engine isn't running, everything electric runs off, you guessed it, 12V battery power.

Sorry, I'm being a smart ass. I'll stop.

In all honesty, my locks have never worked, same situation as your car just that I don't know when they stopped. If anyone knows why this happens, that would benefit us both.

Start the day, however, with a fresh cell. Work up from there.

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Changed the car's name, now it's - Roxanne -1985 325e
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#3 (permalink) Old 04-12-2005, 06:39 AM
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The central locking control unit has a voltage protection relay built in sometimes if the car is jump started this relay "pops". Not as big a problem as you think the control unit is mounted above the right front speaker inside the "A" pillar take the speaker out above the speaker hole you'll see 2 screw heads slacken these and the unit will come out of the speaker hole.
Remove the units cover and re-solder the broken contact (lock's a bit like 3 prongs sticking up with solder on top) 1 of these prongs will have become detached this is what it meant to do the solder acts like a fuse
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#4 (permalink) Old 04-12-2005, 10:32 AM
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Sounds great! I'll give it a shot this weekend and let you know how it worked. thanks for the advice.
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