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Thread: Sunroof Kinematics

  1. #76
    Join Date
    Aug 2018
    Location
    Dundee
    Posts
    21
    My Cars
    2001 z3 mcoupe,
    Hi they come as a pair no point in replacing just one I donít think both mine needed replaced although one had not totally failed. They are £200 a pair plus postage which I think from Scotland to America is about £25 I had a look today, email me if interested benmartin22@hotmail.co.uk cheers

  2. #77
    Join Date
    Mar 2004
    Location
    Blue Ridge Mountains, NC
    Posts
    788
    My Cars
    1999 Z3 Coupe
    Ok this is great news. I stopped using my sunroof when I'd heard that it was prone to failure and the needed part(s) had been elevated to the lofty status of to unobtanium. Before I invest in a pair (to have on hand), what else is prone to failure in this mechanism. I've owned my coupe for 19 years now - 11 with a movable sun roof and the last 8 with a moon roof (frozen with fear and trepidation) and I sorely miss the added airflow. Can I safely start to use mine again? Or is there another under-engineering part that will cause sleepless nights?
    Pic currently held Hostage.
    Sorry

    Blue Ridge Mountains
    1999 2.8 Z3 Coupe
    Arctic Silver

  3. #78
    Join Date
    Aug 2018
    Location
    Dundee
    Posts
    21
    My Cars
    2001 z3 mcoupe,
    Having spent hours searching online for info on these roofs and not finding much, this seems to be the only part that fails as it is the part that the motor pulls on to make it slide, I inspected all other parts and there was no damage. The pins donít fail and the c-clips are easy to lose but besides that and as you can see from my clip itís solid and works perfectly ( I can provide c-clips as well). Cheers

  4. #79
    Join Date
    Aug 2018
    Location
    Dundee
    Posts
    21
    My Cars
    2001 z3 mcoupe,
    My advice is prevention is better than repair, lubricate the area where the slider works about last 6 inch of each side of the rail, you can open the roof inject lots of lube on the outside edge of the slider then close the roof using the slider to spread the lube, I would also lube part that the piŮ in the slider is attached to. I try to put up pic

    - - - Updated - - -

    B787DDF5-5002-4072-84B2-B3F2DDD35D09.jpgB787DDF5-5002-4072-84B2-B3F2DDD35D09.jpg

  5. #80
    Join Date
    Aug 2018
    Location
    Dundee
    Posts
    21
    My Cars
    2001 z3 mcoupe,
    Lube whole inside of this rail, cross your fingers and hope for the best

  6. #81
    Join Date
    Jan 2008
    Location
    Arida Zona
    Posts
    28,376
    My Cars
    z3
    Do you sell the pins that hold together the lifter arm and glass? I dont need a whole assembly, I bought a complete extra sunroof years ago, but would buy a couple extra pins... With tapered ends ideally...

  7. #82
    Join Date
    Aug 2018
    Location
    Dundee
    Posts
    21
    My Cars
    2001 z3 mcoupe,
    Quote Originally Posted by BimmerBreaker View Post
    Do you sell the pins that hold together the lifter arm and glass? I dont need a whole assembly, I bought a complete extra sunroof years ago, but would buy a couple extra pins... With tapered ends ideally...
    Hi I talked to my cnc machine man about pins he made me two for free as he thought they were one off, to make it worth while time setting machine up it would cost £30 a pair with c/ clips but I would suggest trying to source them from Bmw surely cheaper? I havenít checked but want best/ cheapest solution for you, let me know after checking with Bmw if you want them made. Cheers

  8. #83
    Join Date
    Jul 2004
    Location
    Houston, TX
    Posts
    11,400
    My Cars
    36 Cylinders
    Quote Originally Posted by Benm75 View Post
    Having spent hours searching online for info on these roofs and not finding much, this seems to be the only part that fails as it is the part that the motor pulls on to make it slide, I inspected all other parts and there was no damage. The pins donít fail and the c-clips are easy to lose but besides that and as you can see from my clip itís solid and works perfectly ( I can provide c-clips as well). Cheers
    The other little piece attached to the lever can fail and tear as well.
    -Abel

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg
    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 520whp
    - 2016 Mini Cooper S

  9. #84
    Join Date
    Jan 2008
    Location
    Arida Zona
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    28,376
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    z3
    Quote Originally Posted by Benm75 View Post
    Hi I talked to my cnc machine man about pins he made me two for free as he thought they were one off, to make it worth while time setting machine up it would cost £30 a pair with c/ clips but I would suggest trying to source them from Bmw surely cheaper? I havenít checked but want best/ cheapest solution for you, let me know after checking with Bmw if you want them made. Cheers
    BMW doesn't sell parts like that separately though, that's the issue. And because I'm trying to install it with the glass and other side lifter arm installed, it's under tension, so it's not lining up quite perfectly. A slight taper on the end would allow the pin to center the arm and glass holes as I inserted it, simplifying the whole process. I will spend more time trying to getting the pin I have in later, but may reach out if I can't figure it out.

  10. #85
    Join Date
    Aug 2018
    Location
    Dundee
    Posts
    21
    My Cars
    2001 z3 mcoupe,
    Double XL thank you to Josh, Paul and DMC for trusting me and purchasing replacement brackets/ sliders for m coupe sunroof, I particularly liked the feedback that they looked like a piece of art. Many thanks guys I’ll email you all separately with fitting tips. Kindest regards. Ben
    Attached Images Attached Images

  11. #86
    Join Date
    Aug 2007
    Location
    portland, ME
    Posts
    235
    My Cars
    2000 MC,S4 Avant MT, E63
    Ben - the package with my two sets has arrived and was in fantastic shape. I took a look at the machined peice and it really looks well done. I'm lucky that my sunroof currently operates, so i'll be holding these for the eventual failure, so wont be able to comment on install in the near term. That said, thanks for addressing one of the shorfalls of our cars. Mine is lucky to have been upgraded with the inventive problem solving of other forum members like yourself, including Mr. Randy Forbes, Sky1Z3, Jonesmechanical and rocknroad. If any forum members are in the Portland Maine area and what to see the Kinematics first hand, don't hesitate to reach out.

    -Josh

  12. #87
    Join Date
    Aug 2018
    Location
    Dundee
    Posts
    21
    My Cars
    2001 z3 mcoupe,
    Josh you are welcome! Excellent response thank you!

  13. #88
    Join Date
    Mar 2004
    Location
    Blue Ridge Mountains, NC
    Posts
    788
    My Cars
    1999 Z3 Coupe
    I'm glad to say that I just joined the repairable sunroof club! Ben sent along an exquisitely designed and manufactured replacement set. The parts are finished and ready to go. He also generously included a bag the tiny c clips, in case one reached escape velocity during removal. I doubt if you could find it again - even in a clean room. Like Josh, my set has a nice home in the Just in Case repair box. Ever since the parts became NLA I've been afraid to use my sunroof. Now I'm free to let the fresh air flow through my cabin. Yeah I know get a roadster, but then my dior doo would get all messed up. Thank you Ben, you brought back the missing part of my Z smile.
    Pic currently held Hostage.
    Sorry

    Blue Ridge Mountains
    1999 2.8 Z3 Coupe
    Arctic Silver

  14. #89
    Join Date
    Aug 2018
    Location
    Dundee
    Posts
    21
    My Cars
    2001 z3 mcoupe,

    Great feedback thanks

    Quote Originally Posted by daven View Post
    I'm glad to say that I just joined the repairable sunroof club! Ben sent along an exquisitely designed and manufactured replacement set. The parts are finished and ready to go. He also generously included a bag the tiny c clips, in case one reached escape velocity during removal. I doubt if you could find it again - even in a clean room. Like Josh, my set has a nice home in the Just in Case repair box. Ever since the parts became NLA I've been afraid to use my sunroof. Now I'm free to let the fresh air flow through my cabin. Yeah I know get a roadster, but then my dior doo would get all messed up. Thank you Ben, you brought back the missing part of my Z smile.
    Great feedback Daven really appreciate it, also very pleased you trusted me on being able to deliver the quality that these cars deserve. Goodman!

  15. #90
    Join Date
    Aug 2018
    Location
    Dundee
    Posts
    21
    My Cars
    2001 z3 mcoupe,
    Boys I have the solution to this problem if you need it parts already made7BBC3DD4-98B2-4B59-A30E-8FAADB1DB10A.jpg

  16. #91
    Join Date
    Sep 2019
    Location
    CA
    Posts
    7
    My Cars
    2018 Prius

    Moonroof pin and slider out of pocket ...?

    Ben- Hi my name is Vince and I am interested in parts to repair my Z3 m coupe moonroof.

  17. #92
    Join Date
    May 2002
    Location
    SW Florida
    Posts
    12,599
    My Cars
    99-01 M Cpe & Rdts, X5M
    Since this thread has been revived, and all the pictures I posted are now broken links, they can all be seen beginning on page 28 of this album:

    http://spcarsplus.com/piwigo/index.p.../246/start-648




  18. #93
    Join Date
    Jan 2008
    Location
    Arida Zona
    Posts
    28,376
    My Cars
    z3
    Didnt Ron Stygar make some quick-release clips for the pins that hold the sunroof to the car? Anyone else thought of making those? You could just take the sunroof out completely this way very easily

  19. #94
    Join Date
    May 2002
    Location
    SW Florida
    Posts
    12,599
    My Cars
    99-01 M Cpe & Rdts, X5M

  20. #95
    Join Date
    Jan 2016
    Location
    McKinney, Tx, USA
    Posts
    8
    My Cars
    2002 S54 M Coupe
    Newb posting, but have been lurking for years. Wish I had found this thread sooner. Had my Coupe for 12yrs, using the sunroof like I didn’t know better. I didn’t. After seizing H2O pump in Oct (wish I’d seen that thread too), get her back and running great, only to seize the sunroof open. Warm TX sunny days make tilt option a godsend.

    OEM replacements have continued to skyrocket, now over $1000 for full kit. BenM75, if you have any leftovers from this thread, or are starting a new list for another build, add me to the list.

  21. #96
    Join Date
    Jan 2016
    Location
    McKinney, Tx, USA
    Posts
    8
    My Cars
    2002 S54 M Coupe
    Add me to the list of “successfully repaired sunroofs.” Contacted BenM75 in Scotland - he still had parts from the prior mfg run. Great communication, shipped parts quickly. I REALLY took my time on the effort, and all in it took about 3 hours. Didn’t lose a single C-clip! A first for me. Ben provided accurate instructions. Your ability to access hardware will determine how loose you need to make the headliner.

    With our cars, it helps if you’re both ambidextrous and a contortionist to work on headliner and roof mechanisms...but it’s not too bad. Lubed the slide rails, and will relube periodically. No reason these new sliders shouldn’t last another 20 years!

    thanks again to Benm75.

  22. #97
    Join Date
    Aug 2015
    Location
    Denver, CO
    Posts
    3,139
    My Cars
    1999 Z3M, 1999 2.8 Coupe
    Quote Originally Posted by TexasVol View Post
    Add me to the list of “successfully repaired sunroofs.” Contacted BenM75 in Scotland - he still had parts from the prior mfg run. Great communication, shipped parts quickly.
    Have any photos? What exactly is replaced? Are the pieces in post $85 & #90 the same thing? The first seems to accept the cable. The 2nd looks different.

    My sunroof currently works, but I'd rather be prepared and preemptively address than try and fix after it breaks.
    Last edited by s8ilver; 01-31-2021 at 01:03 PM.
    Nathan in Denver

    1999 M Roadster, VFE V3 S/C, Randy Forbes Reinforced, Hardtop, H&R/Bilstein, Apex PS-7, Supersprint
    1999 Z3 2.8 Coupe, Headers, 3.46, Manual Swap, H&R/Koni, M Geometry/Brakes, M54B30 Manifold, Style 42

  23. #98
    Join Date
    Jan 2016
    Location
    McKinney, Tx, USA
    Posts
    8
    My Cars
    2002 S54 M Coupe
    Will post some pics soon. Yes, pics in #85 and #90 are the replacement parts. Unfinished bare aluminum. Parts shown in pics #92 are the original black parts that fail. They are a set of 2. Same part. Both had failed in my case.

  24. #99
    Join Date
    Jan 2016
    Location
    McKinney, Tx, USA
    Posts
    8
    My Cars
    2002 S54 M Coupe

    Sunroof kinematic replacement pics

    Sorry, pictures are not in sequence.

    Finished new sliders in rails, mounted , no sunroof.

    New part next to broken original. Note that original crimp lug is to be cut from cable. Original length is maintained by crimping cylindrical portion of new part, no crimp lug.

    As received new aluminum parts. Replacement C-clips also provided, none lost, so none needed.

    Mechanism (rail) removed, only 1/2 rail shown.

    Sunroof intact, stuck open. Shows area for preventative maintenance application of lube in the rail, each side.

    Cheers!

  25. #100
    Join Date
    Jun 2011
    Location
    San Diego, Ca
    Posts
    9
    My Cars
    2000 MCoupe;2015 228i
    Late to this party...are these parts still available? Thanks!

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