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Thread: Sunroof woes

  1. #1
    Join Date
    May 2012
    Location
    Kapiti New Zealand
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    14
    My Cars
    2003 E39 520i

    Sunroof woes

    Recently acquired 2001 525. Sunroof was sticky when opened once and now is partially up at the rear and not fully closed at the front.

    Is a glass roof. Pressing the switch in any direction results in some load going against the roof panel but no movement. I removed the roof switch panel and tried to manually actuate the assembly via a hex key into the drive. Same thing. Roof panel is stuck.

    Can't remove the accordian side panels as the roof is mostly down. Can't access the screws to remove the glass panel. I suspect the way forward is to remove the headlining and remove the cassette.

    Anyone have a less obtrusive method of sorting this. Currently parked outside and about to lose weather tightness lol.

    Cheers
    Matt

  2. #2
    Join Date
    Nov 2016
    Location
    Slovenia
    Posts
    70
    My Cars
    e39 520ia (year:1997)
    Do you think something broke loose and jammed the sunroof mechanism? If you can't access the mechanism or manually/force it to close, I think that removing the headliner is the only way to aces it. Maybe you can try to get a compressed air (you can get it in cans if you don't have a compressor with gun) in there to blow out whatever is stuck in the mechanism. That might work if it's something small and not stuck too badly. On the e39 the sunroof is problematic as it tend to leak down the A-pillar and soaking the modules and electronics under the dash,causing all sorts of issues.

    May i just add how much i hate the sunroofs just bcs of issues like that. My e39 doesn't have it, but i have a spare junker Toyota micro van with the worst possible sunroof : A full panoramic roof. Last time i tried to open it ,it got stuck in fully open position and it was getting ready to rain outside as i was checking the fuses and switch. I am so glad that it closed after few attempts bcs i dread to think what would happen if the rain would get all over the interior. I will never ever press that button again.
    Last edited by 14W; 06-21-2019 at 10:56 AM.

  3. #3
    Join Date
    Jan 2014
    Location
    Buenos Aires, Argentina
    Posts
    4,582
    My Cars
    '97 523i5 - 99' 540iA
    sidetracking the thread, is there any source for a nice sunroof delete panel like there's been made for the E46?
    Diehard E39 driver.
    I'd rather die or take a walk before driving an E60 or any BMW made after Y2K.
    ​"Your momma's so ugly she makes Bangle cars look nice"

  4. #4
    Join Date
    Nov 2018
    Location
    La Habra, CA
    Posts
    1,117
    My Cars
    2002 525i
    Quote Originally Posted by mattmannz View Post
    Recently acquired 2001 525. Sunroof was sticky when opened once and now is partially up at the rear and not fully closed at the front.

    Is a glass roof. Pressing the switch in any direction results in some load going against the roof panel but no movement. I removed the roof switch panel and tried to manually actuate the assembly via a hex key into the drive. Same thing. Roof panel is stuck.

    Can't remove the accordian side panels as the roof is mostly down. Can't access the screws to remove the glass panel. I suspect the way forward is to remove the headlining and remove the cassette.

    Anyone have a less obtrusive method of sorting this. Currently parked outside and about to lose weather tightness lol.

    Cheers
    Matt
    I'm going through my own sunroof problems, too! This sunroof is the biggest piece of crap I can imagine. Every freaking thing that could possibly break is, you guessed it, plastic.

    If you can't remove the glass, you're stuck. You're probably stuck, even if you could remove the glass. The only thing remotely serviceable with the cassette in, glass out, are the plastic sliders on the rear support arms, and the sliders on the front support "arms." Anything else will require pulling the headliner and the cassette. I hate sunroofs in general, and I wish mine didn't have one.
    Current stable:
    2002 525i (Daily Driver)
    1994 SN95 Mustang 'Vert (The Bumblebee)
    2001 325i Convertible (Beach cruiser project)

  5. #5
    Join Date
    Nov 2016
    Location
    Slovenia
    Posts
    70
    My Cars
    e39 520ia (year:1997)
    I have a cheap idea ,how to delete it ,but i don't know if it would work ,so give your thoughts... What i would do is to degrease the whole assembly ,and after that i would just apply a loooot of silicone all over the closing surfaces and close the roof while the silicone is still soft. That way the water couldn't get in once the silicone would harden. The sunroof would stay where it is but it wouldn't be possible to open it anymore and since the silicone is quite of an effective sealant i think the water wouldn't get in anymore.

    Or you could do it properly via welding the piece of metal over it , and fill the gaps with filler and then respray the whole roof and also change the headliner . But that's expensive unless you know how to DIY weld and paint cars.

  6. #6
    Jaaap is offline ☀ ☁ ☂ ☃ ☏ ☠ ☢ ☣ ♕ ♫ ✂
    Join Date
    Jun 2008
    Location
    Belgium
    Posts
    887
    My Cars
    Alpina B10 e39 / F3
    If you weld it, remove the windscreen first or it will crack.

  7. #7
    Join Date
    Jan 2014
    Location
    Buenos Aires, Argentina
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    '97 523i5 - 99' 540iA
    Quote Originally Posted by Jaaap View Post
    If you weld it, remove the windscreen first or it will crack.
    Best advice you'll read on this thread. I won't ask how you know.
    Diehard E39 driver.
    I'd rather die or take a walk before driving an E60 or any BMW made after Y2K.
    ​"Your momma's so ugly she makes Bangle cars look nice"

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