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      11-16-2017, 07:01 PM   #1
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Hi all, hoping someone can help point me in the right direction or just tell me I'm an idiot and point me in the right direction afterwards...

I have a 2008 E90 M3, and the driver's side rear door lock actuator seems to have crapped out.

I can still open the door from the inside, and then from the outside once its unlocked. However, I can only lock the door with the keyfob. Does not let me unlock. Makes a short vibrating/multi-clicking noise but fails to push the lock pin up.

Does anyone know where I can get a replacement for the driver's side rear door lock actuator? Majority I see online are for the front door.

Thanks
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      11-17-2017, 06:03 PM   #2
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Did I post this in the right place?...
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      11-18-2017, 07:27 AM   #3
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The only other possible sub forum is cosmetic exterior/interior. I found a DIY on the front door lock. Also check out real OEM, they have diagrams and part #s.

DIY: Repalce door lock actuator http://www.m3post.com/forums/showthread.php?t=1037871
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      11-26-2017, 06:45 PM   #4
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Quote:
Originally Posted by drrust View Post
The only other possible sub forum is cosmetic exterior/interior. I found a DIY on the front door lock. Also check out real OEM, they have diagrams and part #s.

DIY: Repalce door lock actuator http://www.m3post.com/forums/showthread.php?t=1037871
Thanks. Looks like the DIY was for the front door as well (or E92). I haven't been able to track down the part # for my E90...yet. Will look around.
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      11-27-2017, 10:04 AM   #5
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You may want to put your specific VIN into RealOEM, to see if there were any changes.

https://www.realoem.com/bmw/enUS/sho...diagId=41_1634
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      12-06-2017, 02:23 AM   #6
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I replaced the driver rear door lock actuator on my e90 335i a couple months back. Part # 51227202147. Itís interchangeable to most bmw models. Took me a while to find the correct part number but this one should fit the e90 m3. Bought a new one on eBay for about $70.

Hereís a good DIY vid:
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