2006 E91 325i, Alarm goes off all the time.

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Thread: 2006 E91 325i, Alarm goes off all the time.

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  1. 2006 E91 325i, Alarm goes off all the time. 
    #1
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    sydney2002's Car Details
    Model of Car:
    325 I SE
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    56
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    I have a 56 plate, 325 I SE Touring.
    When I lock and alarm the car the alarm goes off every time, sometimes it can take around 10 minutes and the alarm sounds, other times it can be hours, usualy around 3 am ish ( sorry neighbours ). I first noticed it in the winter, i presumed it was ice on one of the sensors causing this, but it is still happening now. Got to the stage I dont bother locking it at home anymore, as it only results in being woken up at an un-godly hour .

    I dont have any air fresheners danglign in the car by the way, nothign loose in the car to make the alarm go off.

    Also, I believe when you lock the car, if you press the lock button within 3 seconds it disables the interior sensor, I have done this many times, but the alarm still goes off randomly, so I guess it is not a fault with the internal sensor thats fitted to the roof ?

    Any ideas ?
    Common fault ?
    Car is out of warranty of course now, so last thing I want to do is take it into BMW to try and find out the issue.

    Any tips / hints / ideas appreciated.
     
     

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    #2
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    Ronnie's Car Details
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    Can you remember to add the vehicle details please next time.

    Best course of action will be to get the alarm fault codes read at a BMW specialists, it will pinpoint the problem.
     
     

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    #3
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    sydney2002's Car Details
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    Quote Originally Posted by Ronnie View Post
    Can you remember to add the vehicle details please next time.

    Best course of action will be to get the alarm fault codes read at a BMW specialists, it will pinpoint the problem.
    What do you mean vehicle details ?

    When you say get the alarm fault codes read, is this something I can do, or only BMW / BMW specialist via a machine they have access to ?
     
     

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    #4
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    Your thread title read........"Alarm goes off all the time"
    Look at what it reads now,

    And yes you will need to take it to a BMW independent specialists to have the alarm codes read.
     
     

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    #5
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    joylove's Car Details
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    Bonnet switch. Unplug it.
     
     

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    #6
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    slol's Car Details
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    I will second that, after jet washing the engine bay i had the same symptoms.
    Took the switch out and let it dry out for a couple of days in the house on a radiator, problem hasn't occured since.
     
     

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    #7
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    Even if you need a new switch there ~£10
     
     

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    #8
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    My mate at BMW recommends a sticky rubber thing on the bonnet to depress the switch a little further.
     
     

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