Originally posted by 2mAn
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It has the same weird factory extra alarm system with the second key hole in the driver's door, that my touring has.
I still haven't figured out exactly what it does. It plugs into the central locking box, but mine isn't functional so I'm not sure if its an immobilizer or what.
Also appears to have a something wrong with the SI board, tachometer stays at 0 RPM.
edit: apparently it's just an alarm that makes noise, no immobilizer: http://www.realoem.com/bmw/showparts...5eca6c82b4f714
Explains all the extra contact switches I've noticed throughout the car, which all lead to item 2, a big blue box under the dash which I never saw in other people's pictures. I also noticed I had two horns when I put my Mtech kit on, now I know what the second horn is for.
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