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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Doors mysteriously locking on their own...



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      09-28-2017, 06:04 AM   #1
Arby1028
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Doors mysteriously locking on their own...

...and the sunroof will shut.

Yesterday I pulled-up to a gas pump, shut the car off, unlocked all doors with lock button on the dash, got out, shut the door and made my way over to the pump. When I got to the other side of the car all the doors locked and the sunroof shut. I unlocked them with the key fob so I could get the gas door open and 5 seconds later all doors locked again. This isn't the first time this has happened...matter of fact it happens quite a bit. I've checked the settings on the iDrive Menu for something to keep this from happening and can't find anything. My hands aren't anywhere near the door handles to trip the comfort access locks. Any help would be greatly appreciated.
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      09-28-2017, 06:55 AM   #2
Pidipompi
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Call a priest
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      09-28-2017, 07:54 AM   #3
Arby1028
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Call a priest
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      09-28-2017, 08:12 AM   #4
tgurian
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God knows. Electrical gremlins. Try disconnecting your battery for 10 mins and re-attaching. Other than that ask a dealer what they think?
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      09-28-2017, 08:15 AM   #5
Raahil
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Could be something to do with your autolock settings or possibly a bit of condensation in your fob creating a short and locking your doors
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      09-28-2017, 08:28 AM   #6
Arby1028
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Quote:
Originally Posted by tgurian View Post
God knows. Electrical gremlins. Try disconnecting your battery for 10 mins and re-attaching. Other than that ask a dealer what they think?
I'll give disconnecting the battery a try later today. Thanks.
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      09-28-2017, 08:29 AM   #7
Arby1028
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Quote:
Originally Posted by Raahil View Post
Could be something to do with your autolock settings or possibly a bit of condensation in your fob creating a short and locking your doors
I checked the autolock settings - it's set to relock the car if it's unlocked and no doors are opened. I don't think there's any moisture in the keyfob...hasn't been any place to get wet.
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      09-28-2017, 09:46 AM   #8
ingenieur
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Keyfob should not cause s/roof to close - sounds like a problem in the driver's door lock - if locked with the physical key and held in position the windows and s/r will close.
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      09-29-2017, 07:11 PM   #9
kkasson
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Quote:
Originally Posted by ingenieur View Post
Keyfob should not cause s/roof to close - sounds like a problem in the driver's door lock - if locked with the physical key and held in position the windows and s/r will close.
Yep. Sounds like a short and/or mechanically sticky part in the driver's lock actuator. Not super common but it happens often enough. I think they sell a pretty cheap kit with both front actuators.
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      09-29-2017, 08:54 PM   #10
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My car was randomly unlocking the trunk. I noticed that when I was used the second key, I didn't have the problem. Turned out that the key I was using was defective.
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      09-30-2017, 10:13 PM   #11
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Quote:
Originally Posted by smallseafishie View Post
My car was randomly unlocking the trunk. I noticed that when I was used the second key, I didn't have the problem. Turned out that the key I was using was defective.
Yeah, my first guess would be to check the battery in the key.
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      10-01-2017, 08:22 AM   #12
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I second the battery condition in the key fob. My trunk wouldn't open randomly with it. Replaced the key fob battery (comfort access) and haven't had the issue since.
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      10-01-2017, 07:41 PM   #13
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If you have an electric toothbrush, there is another option:

There is a "hack" of recharging the fob battery using a toothbrush charger (such as Sonic, etc). IIRC, you can simply place the fob on the toothbrush charging base and it will charge the fob battery.
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Manual transmissions keep my left leg ripped. Other activities keep my right arm buff. It looks strange, but at least it's exercise.
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      10-05-2017, 11:09 PM   #14
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Quote:
Originally Posted by Arby1028 View Post
...and the sunroof will shut.

Yesterday I pulled-up to a gas pump, shut the car off, unlocked all doors with lock button on the dash, got out, shut the door and made my way over to the pump. When I got to the other side of the car all the doors locked and the sunroof shut. I unlocked them with the key fob so I could get the gas door open and 5 seconds later all doors locked again. This isn't the first time this has happened...matter of fact it happens quite a bit. I've checked the settings on the iDrive Menu for something to keep this from happening and can't find anything. My hands aren't anywhere near the door handles to trip the comfort access locks. Any help would be greatly appreciated.
I had an issue a while back and I half way figured it out. I noticed my car would lock when I was washing it. It was because water was running over the comfort access part of the door handle. I finally tried to duplicate it by pouring water and low and behold it was what was doing it. I'm guessing it notices a change in temp or something and it thinks it's my finger. I dont know. It was my 08 e90 from a while back. Dealer never really resolved it. They just chalked it up to design flaw. So maybe if it's raining or something, it may be affecting you. I doubt it. Either way, good luck. Just thought I'd share.
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      10-06-2017, 01:36 AM   #15
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I had similar issues when my door was filled up with water from leaky vapor barrier.
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