[W126 Coupe] Seat Belt Presenter Problem

[Camran Nassiri]

Hi Dick- On my 90 560SEC I can tilt the back of the sunroof but can't open the sunroof. 
When I have someone push the button I can hear the motor but the roof doesn't open.
Any idea what the problem is?
Thanks,Camran90 560SEC
91 420SEL


Date: Wed, 30 Jan 2008 17:48:06 -0500From: spell.yy at verizon.netTo: mbcoupes at mbcoupes.comSubject: Re: [W126 Coupe] Seat Belt Presenter Problem
Hi Jeff,Glad to hear you are still driving that 500euro sec.  I had a worn switch cover and intermittent operation on my SEC and simply replaced the entire switch where I wanted the button face to be new.  I would replace the fuse first (all fuses if you have not already done so) and if the problem persists, check the electrical connector and fiber on the back are firmly attached.  Worse case, the switch can be removed, cleaned and reinstalled.  The cover comes off with a pick to either side of the plastic hinge.  You can also locate a used switch at a wreckers yard from any early 126 chassis as I did from an 85 500SEL.Sounds like the motor linkage and rails are allowing for smooth operation so, leave well enough alone.  It does not hurt to do the MB grease (ask Jonathan) on the rails as per the cd manual every year at the same time you blow out the drains.Good luck,Dickjeffrey maniff wrote: 


Dick - Any chance you would know why my sunroof (all of a sudden) is beginning to work and then not work.  Is it the switch, a fuse or the mechanism.  If you don't remember me, i am the guy who grew up on green street around the corner from you with the euro version 500SEC (1985).  I use my sunroof constantly but notice lately that it will not work and then 10 minutes later it opens and closes with good speed.Any thoughts,Thanks Jeff (jsman24 at hotmail.com) if you prefer


Date: Tue, 29 Jan 2008 19:20:45 -0500From: spell.yy at verizon.netTo: mbcoupes at mbcoupes.comSubject: Re: [W126 Coupe] Seat Belt Presenter ProblemHi Tom,I have not tried the following but, you have nothing to lose.  Trigger the extender to move forward and grab a hold of the arm and pull with minimal force to see if you can actually take the arm past it's normal stop to fully remove.Failing this effort, you have no choice but, to remove the rear seat, side panel and extender motor with the broken arm.  Then finding a used arm, set it up on a bench and test before re-installing.  It's been many years since I did those Autolux aluminum gears so, please see the instructions on the MBCoupes main webpage under 'repairs' if you determine it's time to replace the one nylon gear in the original motor assembly.  I'd look the whole affair over to be sure it will be in perfect working order when your repair has been made.Best regards,Dickarmtoelsner at comcast.net wrote: 

Dick,
The end of the arm actually broke, with the small part of the arm broken off inside the triangle shaped tip. So the entire arm needs to be replaced. The arm moves and retracts fine. It is just that when it is retracted, the belt that has been extended to go around my ample girth :-)) often doesn't completely recoil.
Tom
 
-------------- Original message -------------- From: Dick Spellman <spell.yy at verizon.net> Hi Tom,That seatbelt triangle shaped tip at the end of the arm extension is a replaceable part.  Try either a wrecker yard or the local MB dealer or perhaps Jonathan. The center on one of the legs of the triangle should have a snap in piece that permits sliding the tip through the belt webbing.  I'd be guessing that the floor bolt is also visible on the lap belt and can be removed with the tri then slid over, not sure as I have not been in my coupe in some time.  This presumes nothing is lodge in the opening that you can't break free without removing the rear side panel.As for slow operation.  It's is probably a really good idea to lube up the teeth on the extension and pray the original nylon gear to metal gear is not too badly worn from the stress of pushing pulling the arm on aged grease.  I use that MB slide paste stu ff on all these kinds of things.  Don't know if there is anything else that would last as long.Regards,Dicktoelsner at comcast.net wrote: 


Group,
The guide the seat belt goes through on the driver's side broke off from the presenter arm. The motor itself is fine and the arm extends and retracts with no problem. Does anybody have the documented procedure for replacing the arm? Do I need to remove the inside rear panel to gain access? If so, does anybody have instructions? 
 
Also, is it common for the seat belts themselves to retract/coil at a snails pace? Or leave part of it not completely retracted? Is there a fix for this? Thanks again to all.
 
Tom Oelsner
The MB Coupes Website!
W126 SEC Mailing List
Postings remain property of MB Coupes, L.L.C.






Subject: Re: [W126 Coupe] Seat Belt Presenter Problem


From: Dick Spellman <spell.yy at verizon.net>


Date: Tue, 29 Jan 2008 22:39:38 +0000


To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>




To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>The MB Coupes Website!
W126 SEC Mailing List
Postings remain property of MB Coupes, L.L.C.
The MB Coupes Website!
W126 SEC Mailing List
Postings remain property of MB Coupes, L.L.C.

Connect and share in new ways with Windows Live. Get it now! 
The MB Coupes Website!
W126 SEC Mailing List
Postings remain property of MB Coupes, L.L.C.
_________________________________________________________________
Helping your favorite cause is as easy as instant messaging. You IM, we give.
http://im.live.com/Messenger/IM/Home/?source=text_hotmail_join
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.pairlist.net/pipermail/mbcoupes/attachments/20080131/4714b673/attachment.html>