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E39 525i Alarm goes off when unlocking door with push button on keyfob

61 views 1 reply 2 participants last post by  JimLev  
#1 ·
Every time I unlock the the car using the button on the keyfob, the alarm goes off. I disconnected the hood sensor and recharged the battery with no luck. The alarm runs for about 20-30 seconds and then stops. Sometimes pushing the lock button and then the unlock again will stop the alarm. I looking for advice on what else could be triggering the alarm when unlocking the car and how to fix it. Thanks.
 
#2 ·
Look at the red clown nose below the rear view mirror, if I remember correctly it’s flashing may provide you some info that may be looked up in the owners manual.
The alarm also has its own battery backup that may be dead.
 
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