Gwagen w463 are famous for this same failure. You can buy sliding door nylon pulleys with steel ball bearings for about $4 at the hardware store which are a direct swap into the assembly with rivets. Beats 600 for a new regulator each time. On Oct 9, 2015 12:51 PM, "WILTON via Mercedes" <mercedes@okiebenz.com> wrote:
> Specin' materials is part of the design. Somebody tried to do it "on the > cheap." > > Wilton > > ----- Original Message ----- From: "Dan Penoff via Mercedes" < > mercedes@okiebenz.com> > To: "Mercedes Discussion List" <mercedes@okiebenz.com> > Cc: "Dan Penoff" <d...@penoff.com> > Sent: Friday, October 09, 2015 3:07 PM > Subject: Re: [MBZ] Rich saves my bacon > > > The rear window regulators on the W140 chassis cars have a design flaw, >> and it's more about materials than anything else. >> >> The design itself isn't bad, but the stress placed on the plastic or >> nylon pulleys that are used exceeds their strength or as they age they >> can't handle the stress. Ultimately, they break and the cable goes slack, >> allowing the window to drop. >> >> I've also seen instances where the window won't slide smoothly due to >> lack of lubrication in the guides, which puts stress on the cable and >> causes it to "jump" off the pulley(s). >> >> So in my opinion, they didn't design it poorly, they just didn't spec the >> materials out so they would hold up over time. >> >> Dan >> >> Sent from my iPad >> >> On Oct 9, 2015, at 1:41 PM, WILTON via Mercedes <mercedes@okiebenz.com> >>> wrote: >>> >>> 'Havin' to do a field/home mod on a "$75 thou" car to make it reliably >>> do what the original cheap bastards shoulda done. Now, that makes me >>> damned mad - almost as mad as I was when I learned about the rod bender >>> engine in the "top-of-the-line" 350SDL I paid plenty-good money for in '95. >>> >>> Wilton >>> >>> ----- Original Message ----- From: "Meade Dillon via Mercedes" < >>> mercedes@okiebenz.com> >>> To: "Mercedes Discussion List" <mercedes@okiebenz.com> >>> Cc: "Meade Dillon" <dillonm...@gmail.com> >>> Sent: Friday, October 09, 2015 12:33 PM >>> Subject: Re: [MBZ] Rich saves my bacon >>> >>> >>> Rear window regulator uses a cable, front uses bastardized design >>>> combining >>>> electric motor with hand crank mechanism (or at least that what it looks >>>> like to me). >>>> >>>> Didn't someone develop a field modification to strengthen the door or >>>> the >>>> regulator to reduce the flexing (and the resulting metal fatigue) and >>>> prolong the life? >>>> >>>> ------------- >>>> Max >>>> Charleston SC >>>> >>>> On Fri, Oct 9, 2015 at 10:55 AM, Rich Thomas via Mercedes < >>>> mercedes@okiebenz.com> wrote: >>>> >>>> I will take the complement but only vaguely remember extracting said >>>>> parts >>>>> from said vehicle. i do recall they used some sort of cable >>>>> arrangement, >>>>> not a mechanical linkage, to run the window up and down. >>>>> >>>>> --R >>>>> >>>>> >>>>> _______________________________________ >>>> http://www.okiebenz.com >>>> >>>> To search list archives http://www.okiebenz.com/archive/ >>>> >>>> To Unsubscribe or change delivery options go to: >>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>>> >>> >>> >>> _______________________________________ >>> http://www.okiebenz.com >>> >>> To search list archives http://www.okiebenz.com/archive/ >>> >>> To Unsubscribe or change delivery options go to: >>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>> >>> >> _______________________________________ >> http://www.okiebenz.com >> >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >> >> > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
