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E21, E30General discussion and technical help for 1975-1991 3 series cars.
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Your Ride: 1990 325i
325i will not charge!!!
Ok so ive been working on my brothers car its been broke down. Probably for a couple months. So I try to go over there today and he's replaced the battery once and the alternatore today! This is alternate number 2. The voltage started out at 12.2v and slowly goes down as time passes. Within 30 min its dead completely. He was told by a mechanic that the signal wire to the alternator could be bad so he rwplaced it still no change!!! Is there some kind of alternator relay or something blocking it from getting the hint to kick on? He said when the car died on him he and a friend jumped it off! Well the guys apparently made a big whoops and crossed the jumpers! So maybe the pcm is bad???
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Your Ride: 1990 325i
Seriously damn little dash light causes this much of a problem? He bought the care and the dash lights are rigged to a battery pack in the glove box? Is this right? An%d if its not the dash light is there anything else to look fodor?
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Your Ride: 1994 BMW 525i, 1987 325is, 1986 325
There was a small battery pack in the dash that got deleted on later E30's. There shouldn't be a pack anywhere else in the car. Is there any aftermarket stuff on it?
And yes, that little battery light in the dash burning out will cause the alternator to not charge the battery. I've bought Beemers for next to nothing because no one bothered to figure that out and it was on "non-working" alternator number 3.
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Big Evil, The BMW driving monster of the American Southwest (Currently on BMW #5)
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Your Ride: 1994 BMW 525i, 1987 325is, 1986 325
Pull the steering wheel (make sure the key is turned to the unlock position to remove the wheel). Pull the dash cluster out, its on the right side (while facing the gauges) along the bottom. While its out check and replace any and all burned bulbs.
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Big Evil, The BMW driving monster of the American Southwest (Currently on BMW #5)
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Your Ride: 1994 BMW 525i, 1987 325is, 1986 325
No puller, you'll damage the wheel lock. Just undo the bolt, turn the key and the wheel will come right off. Mark its position before you pull it, it's designed to be easy sine the older ones required a SI board replacement as a part of regular service (that's what had the battery pack in the dash)
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Big Evil, The BMW driving monster of the American Southwest (Currently on BMW #5)
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Your Ride: 1990 325i
New light bulbs new wire from alt to starter new ground wire from alt to chassis still no charge! Anyway to check and see if exciter wire is working properly! Maybe unloader relay I'm completely stumped
04-08-2011, 10:19 PM
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