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Old 07-29-2015, 05:42 PM   #1
Turtle89
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Join Date: Oct 2014
Location: Brooklyn
Posts: 17
My Ride: 1999 Bmw 323i
1999 bmw 323i door lock

Hey everyone I noticed today that my doors are not locking/unlocking when I press the button inside the car. By button I'm talking about the door lock button next to the hazard lights switch. I also noticed that on my dashboard it is no longer indicating when the front driver and front passenger door is open or closed. Any idea of where to start to troubleshoot this? Any help would be greatly appreciated. Thank you. Also as the title says I have a 1999 bmw 323i 4 door sedan.
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Old 07-29-2015, 07:34 PM   #2
Synrgy
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Join Date: Jan 2015
Location: California
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My Ride: 2000 323i
Your locking, unlocking problem could be the general module which controls central locking, among other things. You may have a secondary problem with the door lock actuators since they are not displaying when a door is opened or closed. There are hall sensors that detect when the latch is closed or open, which triggers the light on the dashboard. The only solution to that is to replace the door lock actuators. I would troubleshoot your central locking problem first before tackling the actuators. The center console switch should always work regardless of bad actuators.
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Old 07-29-2015, 08:00 PM   #3
Turtle89
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My Ride: 1999 Bmw 323i
The center lock switch works like once in a blue if I push the hell out of the button to lock/unlock. With the key remote it works every time. When it's extremely hot like today the door open light works like a charm but once it's cooler it stops working.
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Old 07-29-2015, 08:02 PM   #4
Synrgy
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Since your remote works to unlock and lock all the doors reliably, it sounds like you have a bad center console switch. In addition to that, your door lock actuators definitely have bad sensors in them. I had the same issue with my 323i, replacing the actuator fixed the issue with the open/closed indicator on the dash. In my case, it would work when really cold and stop working when hot!
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Old 07-29-2015, 08:07 PM   #5
Nicker
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My Ride: 323ci
I had the same problem, drivers door wasn't unlocking,... only with key.

Turns out I needed to replace my actuator,... just bought it... now the door starts unlocking... so now I have a spare driverside actuator for my 323ci for once it eventually dies.
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Old Yesterday, 04:25 PM   #6
Turtle89
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My Ride: 1999 Bmw 323i
Well I have an update. I fixed the central locking button with duct tape after doing some more research on it so now that's working. Thank you guys. Is there a test or a temporary fix that I can do to the actuators before I have to buy one? Just want to make sure it's that and not the module but my gut feeling is saying it's the actuators.
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Old Yesterday, 06:07 PM   #7
Turtle89
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I got the front passenger door open/close light to work by spraying silicone spray so that's a plus. The drivers side is unresponsive at the moment but I am going to let it sit and check on it tomorrow.
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Old Yesterday, 06:10 PM   #8
scottjoh
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My Ride: '99 323i & '02 540i
1999 bmw 323i door lock

The door ajar may work now, but, it is temporary. It will go out again. The actuator needs to be replaced! There is no temporary fix. As synrgy said in post #2 the door ajar is detected via a Hall effect sensor. A Hall effect sensor senses the presence or absence of a magnetic field. It is non contact and there is no physical switch. It is a coincidence that it started working after spraying silicone lubricant. It can work better when it's hot or cold because of slight sensitivity changes in the Hall effect sensor.

Last edited by scottjoh; Yesterday at 06:18 PM.
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