[T3] Brake light switches

Brian Fye bfye at canyonville.net
Tue Feb 21 19:55:14 PST 2012


mine was a generic 3 prong that i installed sunday.  it is working for now,
but the car is NON redundant.

On Tue, Feb 21, 2012 at 7:50 PM, Bryon Garvin <spinningrooves at gmail.com>wrote:

> Jim,
>
> I am fearing the same thing anytime now since that's how last spring went
> for me :)
>
> Anyway, if you don't find the Meyle info, I at least have this from my
> notes.  This was the fellow that got back to me when I wrote saying I had a
> problem with the internal wiring on the switches.  If you remember, they
> made a bunch of switches that kept the lights on all the time and turned
> them off when you depressed the pedal:
> ==============================
> Peter Cohrs
>
> *Wulf Gaertner Autoparts AG  *
> Merkurring 111 • 22143 Hamburg • Germany
> Tel.   +49 40 67506 533
> Fax   +49 40 67506 633
> Web  www.meyle.com
> Chairman of the Board: Dr. Norbert Steffen
> Chief Executive Officer: Dr. Karl J. Gaertner
> Trade Register Hamburg HRB 71660
>
> ========================================
>
>  - Bryon, '71 Fastback
>
>
>
>
> On Tue, Feb 21, 2012 at 7:42 PM, Jim Adney <jadney at vwtype3.org> wrote:
>
> > It's been so dry and warm here that I took the square out for errands
> > last week, but coming home a passing pedestrian warned me that my
> > brake lights weren't coming on. Thus another pair of brake light
> > switches have bit the dust.
> >
> > Refusing to sacrifice them 2 at a time, I replaced just one on
> > sunday, and took the bad one in to work today to cut it apart on a
> > lathe. What I found surprised me.
> >
> > I expected to find the inner contacts corroded and burned, but
> > instead, all the metal parts inside were pristine with no signs of
> > corrosion or weathering of any kind, and no sign of brake fluid in
> > that part of the switch.
> >
> > Instead, what i found was that there is a little plastic plunger that
> > transfers the movement from the diaphram to the metal switch
> > contacts. That plastic plunger had melted, so that it could no longer
> > move the switch parts. Thus, at least in this case, the contacts were
> > not the problem.
> >
> > The switch that failed was a rather run of the mill, possibly
> > Brazilian, part that had a full length hex body. The replacements I
> > now have are from Meyle and Euromax and the bodys are half hex/ half
> > round, like the OE parts. I cut one of the Meyles apart last year,
> > but I don't remember the details about that part of the construction.
> > We'll see how this one does.
> >
> > This plunger could easily be made of metal, eliminating this problem.
> > I know that the OG switches had metal plungers. I'll see if I still
> > have the email for the Meyle rep. If I do, I'll forward this info to
> > him.
> >
> > In the meantime, I also drilled holes in 4 switches so I could inject
> > conductive grease in there to see if that will help. It might help
> > with corrosion, but it shouldn't have any effect on the melting
> > plunger problem.
> >
> > --
> > *******************************
> > Jim Adney, jadney at vwtype3.org
> > Madison, Wisconsin, USA
> > *******************************
> >
> > _______________________________________________
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> >
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-- 
Brian Fye
Canyonville Christian Academy
541 839 4401 ext. 110
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