2003 BMW 5 Series
Problem for BMW 2003 5 Series

Alarm goes off intermittently.




By georgelula on Aug 28, 2009

" "
Alarm goes off intermittently and has run the battery down. It is happening every other day or.
Comments:

Aug 28, 2009

- Thanks for the answer, it is a stock alarm. How would I permanently disconnect it as I don't have need for it. Appreciate your help..

Best Solution

posted on Sep 19, 2009
Very Helpful)

mat coleman

Rank: Apprentice 
Rating: 100%, 1 votes
I haad a similar problem with my 530. I found the Bonnet Sensor switch was faulty. If you remove this switch, the problem goes away, although not protected for someone lifting your bonnet. Of course, buying a new bonnet switch would solve that one. There could be other reasons, for your alarm going off, but this one seemed to be the most common when I searched around. Worth removing the switch for a few days and that should prove if this is it or not.
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Asker's Testimonial
" You're right. I had taken the car to Dinan and that was the basis for the fault. They disconnected as I don't think it was worth replacing. " - georgelula

Solution #2

posted on Aug 28, 2009
Very Helpful)

airjoc

Rank: Guru  Cars  Expert
Rating: 89%, 230 votes
is the alarm after market or stock? stock will be with the key, aftermarket will be another remote. stock shouldn't be that sensitive I would have alarm module check, the alarm unit is incorporated with door control module. if its aftermarket I would have it disconnected and replace if it kill your battery.
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" Great answer. Need a bit more information to take this issue to the next step. " - georgelula

Solution #3

posted on Aug 28, 2009
Helpful)

Fixitman909

Rank: Wiz  Cars  Expert
Rating: 81%, 96 votes
Your Alarm sensor is set to high *sensitivity level*...either have sensor adjusted or disconnect
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