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E36General discussion and technical help for (E36) 1992-1999 3 series cars. 318, 323, 325, 328.
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Your Ride: 1994 325i se
alarm reprogramming
hi folks, ive just become the lucky owner of a 325i SE in mint condition. however, i have an unusual alarm. alll the alarms i have seen on this model seem to have 2 or 3 buttons and easy programming instructions at hand. mine is a 1 button fob with no key buttons. my local BMW garage would gladly have a look for £90!. does anyone have any idea how to reprogram this type?. any help would me much appreciated. cheers, James
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Your Ride: 1993 E36 320i
Hi. I take it you have changed the battery?
If you have the same type of factory fitted alarm as me, (factory fitted with the key on/off on the horn box under the hood) then the alarm fob is hard wired.
Inside mine are tiny jumpers which are configured to match your alarm. When I got a replacement fob 2 years ago it didn't work so I changed the jumpers (requires careful use of a soldering iron) and it worked fine.
There wasn't any need to reprogram the main alarm - it just worked!
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Your Ride: 1994 325i se
hi, thanks for the reply. what you have explained sounds exactly what BMW said on the phone. i do have the key on/off switch under the bonnett. sorry for sounding like a total plonka but i have no idea what jumpers are so i can explain to the oldman, who is far more compitent at DIY etc.... thanks once again, James
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Your Ride: 1993 E36 320i
I should have explained it a little better. There are several tracks on the reverse of the printed circuit board which have gaps between them. You need to bridge the appropriate gaps with a small piece of wire (jumper) to match the existing remote.
This is assuming that you have the right wiring in yours to start with!
Last edited by JohnG; 11-09-2008 at 04:57 AM..
Reason: Spelling
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Your Ride: 1994 325i se
hi, thanks for helping, again. i looked at both fobs and they both appear to be exactly the same on chip board reverse. do you think that i could try and purchase new fob like you did then wire these the same as existing fobs on the hope that both these fobs are knackered. cheers, James
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Your Ride: 1993 E36 320i
If the red led is lighting on both of the fobs when you press the button then they are probably OK . The alarm might have been disconnected by the previous owner though (maybe to install an after market alarm?)- it would be worth checking to see if the unit is connected. The alarm unit is located behind the glove box so to check it you would need to remove it.
I assume that you have checked the fuses?
11-08-2008, 04:15 AM
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