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Old 08-20-2009, 06:52 PM   #1
e36nut
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91 318i

I'm having problems with my power windows. Two days in a row now, when putting the windows up, they start to go up then cut out. It keeps blowing fuses. The fuses in there are 30A fuses. According to online tech guides, these are the proper fuses. Any ideas? Has anyone else had this happen and if so, what did you do to fix the problem? The a/c doesn't work so the windows need to be down while driving in this weather. Thanks for any help.

Jon
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Old 08-20-2009, 07:26 PM   #2
Aloush
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for me it was the relay in the fuse box that was out..

it made the windows, sunroof stop working
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Old 08-24-2009, 02:55 PM   #3
e36nut
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So when this happened, you put new fuses in and it started working again? Cause this just keeps blowing fuses. We put new ones in and it stops working a couple days later again. Has this not happened to anyone else?
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Old 08-25-2009, 06:06 PM   #4
simsimmah
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Quote:
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for me it was the relay in the fuse box that was out..

it made the windows, sunroof stop working

i think hes trying to say you need a new RELAY!
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Old 08-25-2009, 06:17 PM   #5
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That^^ or he's got a short somewhere. The next time it stops working - take a screw driver and tap the relay a few times while someone is on the switches. See if they makes them work. You can also remove the relay and open it - check the contacts on it - you might get away with cleaning them up and then re-install. If they are too far gone you'll need a new one.
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1 89 325i vert grey - parts
1 90 325is white - keepin
1 87 325i vert -red - keepin
latest addition 1 88-325is red - parts
latest addition 1 89-325i vert - white -fixin/sold
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latest addition 1 87 325is blk - parts.

latest addition as of 2013-Gold 87-325is auto! it's a keeper!
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Old 08-25-2009, 06:28 PM   #6
e36nut
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So a bad relay or dirty one, would make the car blow fuses? When I put a new fuse in it works fine again. Well, I guess it is time to start looking at wires. The car has been in the family for quite some time now and has never had this issue so maybe I will put in a new relay first and see if that doesn't solve the problem. Thanks for the input.
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Old 08-25-2009, 06:41 PM   #7
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Originally Posted by e36nut View Post
So a bad relay or dirty one, would make the car blow fuses? When I put a new fuse in it works fine again. Well, I guess it is time to start looking at wires. The car has been in the family for quite some time now and has never had this issue so maybe I will put in a new relay first and see if that doesn't solve the problem. Thanks for the input.
Check the door harness going into the body. The pins are typical of corrosion.

if this is the case you'll need a special tool to remove the old pins - cut wires and install new pins with a special crimping tool. Both available from bmw. I don't know who else carries them. Usually it's the male side(door) that gets bad but could also be the female side. Might even be both. I had to do this once to all the connections and there are plenty. cross your fingers you don't!!! lol.

Also remove the door liner and check the connections at the power window motors for any corrosion and cracking. this is also a problem at times.
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I think I've had 14 bmw's in 4 years.
2 IX's -sold and parts
2 325i 4 dr - sold
4 318is all white - sold and parts
1 87 325is red - parts
1 89 325i vert grey - parts
1 90 325is white - keepin
1 87 325i vert -red - keepin
latest addition 1 88-325is red - parts
latest addition 1 89-325i vert - white -fixin/sold
latest addition 1 92-318i vert - blue - parts
latest addition 1 87 325is blk - parts.

latest addition as of 2013-Gold 87-325is auto! it's a keeper!
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Old 08-26-2009, 06:33 PM   #8
E30M42cab
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A good place to check for a short is in under the shifter part of the center console where all the switches are... shifting gears (if it's a stick) can sometimes chaffe the wires, especially with a sloppy shifter, and make them rub on things they shouldn't be rubbing on.
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Old 08-27-2009, 05:21 AM   #9
e36nut
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Thanks guys, these are very helpful tips.
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