Hi
I have a 1990 325i Cab with the magnetic key factory alarm, does the alarm have a fuse, cannot see one listed in the fuse box.
Is the fuse hidden somewhere.
Cheers
Neil.
Magnetic Key Alarm
Moderator: martauto
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- E30 Zone Addict
- Posts: 3004
- Joined: Mon Oct 11, 2010 11:00 pm
- Location: Ayr, Ayrshire, Scotland
Chances are its fooked. Very very few of them still work
I have now got my standard E30 alarm, the one with the magnetic key, working. It turned out the problem was with the door switch plugs, they were corroded. I replaced the switch with a secondhand one and all works now. The immobilizer now works fine and deactivates with the key. The door light works as does the boot one.
I cleaned up the old door switch, now that works, I also now have 2 spare blue control boxes which work also, bought secondhand.
I do though have one question, should the car horn sound if you do not deactivate the immobilizer before opening the drivers door ?
It looks like, on BMWFANS, that there is a horn which is part of the immobilizer system.
Also I now know if all the fails I can just connect the green and the green and red wires together above the glove box.
Cheers
Neil.
I cleaned up the old door switch, now that works, I also now have 2 spare blue control boxes which work also, bought secondhand.
I do though have one question, should the car horn sound if you do not deactivate the immobilizer before opening the drivers door ?
It looks like, on BMWFANS, that there is a horn which is part of the immobilizer system.
Also I now know if all the fails I can just connect the green and the green and red wires together above the glove box.
Cheers
Neil.

Last edited by sharky on Sun Aug 12, 2012 10:51 pm, edited 1 time in total.
- aimlessrock
- E30 Zone Squatter
- Posts: 1821
- Joined: Sun Dec 06, 2009 11:00 pm
- Location: Manchester
looks like you have done your homework sharky...my cabby came with the same set up after much pi55ing around i pulled the lot out and have not hand any problems with it since.
E30 320i Convertible (1989)
190 Mercedes (1988)
"there is nothing more expensive than a cheap E30"
190 Mercedes (1988)
"there is nothing more expensive than a cheap E30"