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06-13-2014, 04:32 PM | #1 |
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Trunk won't seal all the way shut, can't operate hard top
I've been dealing with this trunk issue on my 2009 BMW Z4 (E89) for about two months now, wondering if any of you have any insight.
When I close the trunk, it latches (won't open back up without pushing trunk release button) but it doesn't seal shut the remaining centimeter or so like it's supposed to. Because of this, the car thinks the trunk is still open which restricts me from operating the hard top. It seems to work (seal shut) intermittently and sometimes even while I'm driving or when I close my car door, but 90% of the time it doesn't work. BMW quoted me $891.27 for "the entire rear trunk lock and mechanism" + labor. Anyone know specifically what the issue may be and if there's a cheaper way for me to get it fixed? |
06-13-2014, 06:09 PM | #3 |
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Yeah, they wouldn't even tell me the specific part name or number beyond what I wrote above :/ and one of the service advisers told me that they've never seen this issue before but then one of the younger guys that comes up and asks you why you're visiting the dealership today, etc. said he's actually seen this same issue a few times... Love dealerships.
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06-13-2014, 06:39 PM | #4 |
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OP, my GUESS is that part that needs replacing is the $461 "latch" shown below as part #10
good luck http://www.getbmwparts.com/parts/201...gramCallOut=10 |
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06-13-2014, 09:23 PM | #5 |
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Thanks for the link, nicknaz.
I tried calling a different dealership and describing the problem in an attempt to find out what part they think may need replacement and they said the part would cost about $683 if I recall correctly. Given that the part you referenced is the most expensive part of the trunk on that link (besides the lid itself), it's possible that this is the correct part but I'm worried I'll buy the wrong part :O |
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06-17-2014, 02:50 PM | #8 |
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Before you go spending lots of money, just take off the boot trim and have a look. I did this some time ago. The mechanism is not complicated and you might find a easier solution than just replacing parts.
Something might need a minor adjustment. I was so fascinated by the mechanism I recorded it on my mobile phone. If I can find will upload to youtube for comparison. Found; Might be of some use. Each end are the draw down gearboxes and motors. The white lever has a extra hole for a manual boot release, but its not fitted. I was contemplating fitting a manual boot release or cheap door solenoid operated by a cabin switch, in case it ever got stuck. Last edited by bigendbob; 06-17-2014 at 03:07 PM.. |
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06-26-2014, 06:26 PM | #9 |
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Thanks for the video and info! If I get a chance, I might try to take a look tonight and see if anything stands out. I was gone for the better half of the last week so haven't had a chance to look at it yet, but here's to hoping I can fix it myself and not spend $900 just so that the trunk will seal that final centimeter :|
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11-19-2014, 05:08 PM | #10 |
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01-22-2015, 02:47 PM | #12 |
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Issue solved.
For your info and reference: The issue was linked to the SmartTop module which failed (after 4 years of loyal service, 2-4 times a day). Before going to the dealership in order to complain about the electric assist motor not working anymore and the impossibility to fully close the trunk, I tried to disable the SmartTop module (always disable SmartTop before going to the dealership). Strange enough I couldn't connect my PC to the module via the USB cable. 2 electrical failures at the same time ? Nah, I don't believe in such coincidence. So I emailed SmartTop support and they indeed confirmed that a total module failure could impact the electric trunk closure. They then quickly diagnosed the issue with the module. They shipped me a new one for free. I installed it and voila, the eletric assist motor could close the trunk |
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01-23-2015, 02:37 AM | #13 |
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Good solution.
As I am increasingly encountering similar problems with a (different kind of) roof module, how could you install the new module without fully closing the trunk? As soon as my module stops working intermittently, I cannot do anything with the roof - so I could not even open it to "half position" (http://bit.ly/1CqOx04) to get access to the module Best regards Mick |
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01-23-2015, 11:39 AM | #14 | |
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Quote:
And probably to answer your implicit question , yes indeed, until I received the new module, I was driving without the trunk fully closed ... but my commute is only 2 miles (3.2km) |
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07-12-2019, 03:40 AM | #15 |
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I know this is an old post, but I’ll try anyway.
Today I also got this problem with my trunk. Did anyone find a solution for this? I don’t have any retrofitted module for the top. All is OEM. |
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07-12-2019, 02:01 PM | #16 |
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03-30-2020, 10:43 AM | #18 |
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Had the same problem, left side all three wires broken.
On another site, there was a series of pictures that walked you through it. Easy fix if you know how to splice small gauge wires |
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close, issue, problem, seal, trunk |
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