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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 11-10-2012, 12:25 PM   #1
Brianflomer
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Join Date: Mar 2012
Location: Clanton, AL
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My Ride: 2003 325is
Can anyone tell me what this button is and what it's for?

It's to the top left when you open the hood.
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Old 11-10-2012, 12:30 PM   #2
flashmeow
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for your alarm. it detects whether your hood is open or close
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Old 11-10-2012, 12:31 PM   #3
flashmeow
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you car might not have the alarm but it is (all e46) "pre-wired" so this is why you have this switch/sensor/device
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Old 11-10-2012, 01:32 PM   #4
Brianflomer
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Alright. Thanks guys.
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