Central Locking Unit Dead? - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 06-30-2005, 03:39 PM
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when i first got my car the central locking unit used to work, but now it dosnt work anymore? now i have to lock everydoor one buy one and my trunk. how can this be fixed, do i have to replace the motor or maybe its something else?

thanks
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#2 (permalink) Old 06-30-2005, 03:54 PM
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i think that it would be a switch/sensor not a motor/solenoid.

the motors actuate the locks that arent the lock u are turning. so the chance of all 3 or 5 of them going is slim but possible. more likely that its a switch that controls the motors.

just my .02 and those .02 arent certified mechanic .02
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#3 (permalink) Old 07-01-2005, 12:27 PM
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I have a similar problem on my 1989 318i with central locking. This happens on the driver's door only. When I turn the key 45 degrees, the central locking system works as it should be. When I turn the key 90 degrees, the central locking is disabled and doors cannot be opened from inside, or from the passenger's lock - like a thief proof measure as the car manual states.

Problem is when I lock the car, the key doesn't stop at 45 degrees, but it goes a just a bit further therefore activating the thiefproof system. What could the problem be?

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#4 (permalink) Old 07-27-2005, 03:41 PM
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Mine used to work perfectly. Now they work intermittently. They still work most often to unlock (but not always). But when I go to lock, they usually don't work so I have to lock manually. Thing is I can tell the motors are still working sometimes so it must be a switch or something. Is the "actuator" another name for the motor that does the work? I'm wondering if anyone can give more specific ideas on where the switches are, or if you think it could be the power-lock relay etc.????

Thanks,
Mark

Mark
1984 325e
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#5 (permalink) Old 08-09-2005, 01:44 AM
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A DIY or FAQ on this subject would be nice. My entire Central Locking System is out for the count, so I have to get everyone to lock their doors... and sometimes, they don't. Bastards. But anyways, my question: any telltale fuses/relays I can pop in there to make it work? I tried reinstalling the key heater fuse, and it drained my battery. So much for that. Didn't make the locking system work anyway.

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Changed the car's name, now it's - Roxanne -1985 325e
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#6 (permalink) Old 08-18-2005, 09:25 AM
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Okay, if my central locking works... but I can only unlock the doors from the Drivers Side, what does that mean, and how do I fix it?

Thanks!

Josh W

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#7 (permalink) Old 08-21-2005, 06:39 PM
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Quote:
Originally posted by offabroadway@Aug 9 2005, 12:44 AM
A DIY or FAQ on this subject would be nice. My entire Central Locking System is out for the count, so I have to get everyone to lock their doors... and sometimes, they don't. Bastards. But anyways, my question: any telltale fuses/relays I can pop in there to make it work? I tried reinstalling the key heater fuse, and it drained my battery. So much for that. Didn't make the locking system work anyway.
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Go to www.bmwe30.net and click on articles and tips, there is a entire section on the central locking and how to troubleshoot and repair.
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