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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)

E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 09-19-2013, 11:01 PM
blackmanswilly blackmanswilly is offline
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Mein Auto: 1990 325i SE
Alarm/ immobilizer issues

hey guys. so the other day my 90' 325i ran out of battery so i got it charged to a good 13ish volts. somewhere in there along the lines (either taking out or putting back in) i must have armed the alarm. i cannot seem to disarm it therefore im not able to get a crank at all. car ran 100% before the dead battery i just cant get her to crank.....! any options or suggestions?
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  #2  
Old 09-19-2013, 11:02 PM
blackmanswilly blackmanswilly is offline
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p.s it is a aftermarket alarm. indicators flash and there is a beeping comming from the dash/ instrument cluster.
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  #3  
Old 09-19-2013, 11:25 PM
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hornhospital hornhospital is offline
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Pull the alarm module. It should crank after that. That's what I had to do to mine when the alarm went wacky. It wouldn't respond to key fob commands after the battery went dead and was recharged.
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  #4  
Old 09-20-2013, 12:12 AM
blackmanswilly blackmanswilly is offline
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yeah i think your right. wiring, deffinatly not my strong point.
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  #5  
Old 09-20-2013, 12:37 AM
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cmac2012 cmac2012 is online now
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Mein Auto: 1987 325i, 403K
One of the POs of my car installed a POS called Derringer. Whenever the battery was unhooked, I had to press the little button that had been left at the left edge inside the glove box. Tiny little sucker but it worked. If you had installed it, I guess you'd know about these things but you didn't mention your history with it. If you don't know about a reset button, maybe some searching would find it.

My disabler device was located above the ABS computer, which is behind the lower dash panel, close to the turn signal arm. Perhaps if you found it and traced all wiring. You could find the switch or at least get mentally prepared to remove the damned thing. I regret to admit that I paid a Stereo/Security shop $60 to remove mine. I fix most everything myself but I thought maybe I'd yield to the practiced hand on this one.
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  #6  
Old 09-20-2013, 12:55 AM
blackmanswilly blackmanswilly is offline
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Mein Auto: 1990 325i SE
Only had the car a few weeks, it was in there when i got it. yeah i really hate not being able to do something myself, especially cars. this might just be one of those times where i have to stand back, buckle up and pay the man.
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  #7  
Old 09-27-2013, 06:49 AM
my05crf280 my05crf280 is offline
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Most all aftermarket alarms will have a little black or red button you press and hold while you turn the ignition on. This will put it in valet mode.
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  #8  
Old 09-30-2013, 04:07 PM
blackmanswilly blackmanswilly is offline
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yeah i did suspect this but ive searched high and low for sothing resembling a valet mode switch. (behind glovebox, drivers side steering panel ect )
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  #9  
Old 10-01-2013, 05:23 AM
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toybuilder toybuilder is offline
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Do you know what brand of alarm it is ? If you do you can sometimes go to the companies website for help to get it turned off ,at least they'll be able to tell you what your looking for .It has to be hooked into your ignition system so either under the dash or at the main relay .Before you just pull all the wire connected to the module (which I know is what you want to do) you need to get a wiring diagram so you can deconstruct the system without damaging anything else.If you find a Mgf name you'll usually be able to take it apart yourself.
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  #10  
Old 10-01-2013, 06:35 AM
my05crf280 my05crf280 is offline
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Sometimes they dont plug the switch in unfortunately. If u trace back the wiring there is usually only onevwire thats cut. Thats gonna need to b soldered back together and relay eliminated if you chose to remove the alarm.
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  #11  
Old 10-05-2013, 07:32 AM
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BMWFatherFigure BMWFatherFigure is offline
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Mein Auto: E23;E30;E38;E32;E34 +
Remove the unit and get a good one fitted later...
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  #12  
Old 10-05-2013, 09:24 AM
my05crf280 my05crf280 is offline
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??? It may b a good unit installed properly. Just about every alarm made will do this. Otherwise a thief vould disconnect the battery and steal the car.
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  #13  
Old 10-05-2013, 12:26 PM
my05crf280 my05crf280 is offline
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Take a pic of the remote and post it on here. Im sure we can establish the model then through research find the procedure to relearn the remote.
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  #14  
Old 10-08-2013, 10:28 PM
blackmanswilly blackmanswilly is offline
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i took it to my local auto electrician and had the alarm removed. still no spark. i suppose this opens up alot of potential issues ( this is precisely what i had not wanted to happen)my first BMW, ive only had the car a couple of months, im trying not to let it kill the enthusiasm and respect i have found for these cars..
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  #15  
Old 10-09-2013, 09:30 PM
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downhiller downhiller is offline
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  #16  
Old 10-11-2013, 02:11 AM
Billwill Billwill is offline
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Mein Auto: BMW E30 318i 1991
Quote:
Originally Posted by blackmanswilly View Post
i took it to my local auto electrician and had the alarm removed. still no spark. i suppose this opens up alot of potential issues ( this is precisely what i had not wanted to happen)my first BMW, ive only had the car a couple of months, im trying not to let it kill the enthusiasm and respect i have found for these cars..
Are you getting fuel? Are the spark plugs wet?

You sure the auto electrician properly removed the alarm?
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  #17  
Old 10-11-2013, 02:37 AM
my05crf280 my05crf280 is offline
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The best thing to do would be test the starter wire at the solenoid. Thus way u can test signal in from the key and output from the solenoid. This way you know for sure if the problem is before or after the solenoid. If it is from the alarm system like you thought it will be a whole lot easier to test. Jist remove the signal wire and clio your volt meter to it and begin troubleshooting. When the signal wire responds directly to the key you should b good. If the signal wire tests good then its probably a bad solenoid or starter.
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  #18  
Old 10-15-2013, 07:45 PM
blackmanswilly blackmanswilly is offline
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Mein Auto: 1990 325i SE
at last it starts. got a new fuel pump on a whim and, good as new if not, better. Before I put the new one in it needed 2 goes at the key to get running. The old one was in good shape but was never the less malfunctioning.
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  #19  
Old 10-17-2013, 10:01 PM
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toybuilder toybuilder is offline
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You know even though it turned out to some how be unrelated this time you still might consider getting rid of the alarm, or at least buying one that you know how it's been installed. Then you won't have this problem again, just a thought .
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  #20  
Old 10-18-2013, 07:26 PM
blackmanswilly blackmanswilly is offline
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Mein Auto: 1990 325i SE
First thing I did was take the alarm it came with out. That got me at least cranking.. from there it wasn't receiving fuel, hence the new fuel pump.
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  #21  
Old 10-20-2013, 08:57 AM
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toybuilder toybuilder is offline
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Sorry didn't see that post .It might have shorted the fuel pump out when it went wacky on you ,it was probably hooked to the fuel pump and starter circuits .I've had similar problems before with BMWs ,it's just the way the systems are integrated .Don't fret though once you get it back to basics (stock) it works great and it's much easier to fix if you do have an issue.
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