[W126 Coupe] Window Regulator Problems

[Dick Spellman]

Hi Cal,

Re: The glass retainer bolts on the bottom rail.  The glass is held in place
with the compression bolts on the metal rail you describe.  There is no
glue.

Re: The door frame itself.  The reinforced steel bar you describe may have
been added to deal with the common problem where one of the regulator bolts
that passes through this steel tears a hole greater in size than the
regulator retainer bolt/washer.  This presumes you are not referring to the
USDOT rods that were added on certain model years to strengthen the door in
the event of a side impact. by way of example, I have no rods on the 83 but,
they have been added on the 86.

Whats happening.  When the window is raised and the window switch held for a
time after the window 'tops out' the regulator arm takes on additional
torque that causes the regulator arm to twist and eventually crack.  The
best you can hope for is to make a conscious effort to release the window
switch as the window makes the rubber seal.

Unfortunately, you have described two of the three failures on the window
lift.  The torn bolt hole in the door steel itself and the twisted/soon to
be cracked regulator arm. Third would be stripped teeth on the regulator
motor gear itself.

Good luck,

Dick

On Sun, Aug 29, 2010 at 10:45 PM, calvin young <calvinyoung at cox.net> wrote:


> I have been having tremendous window regulator problems.  Fix and re-fix

> every couple years or so.  I now thing the car was hit on the driver's and

> repaired.  The steel bar that runs the length of the door was welded with a

> piece of steel added.  I do not think this normal.

>

> The window jumped one of the the tracks and the regulator got bent.  I

> think the original problem is one of the clamps that holds the window in

> place came loose.  My question is, "Should the metal piece that sits next to

> the window (over a plastic sheath) attached to the window with permanent

> glue?" If yes, I will probably have to replace the glass as well.  I may be

> able to bend the regulator back into its proper shape, but failing that,

> does anyone have one available?  What about the glass.

>

> Cal

>

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