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Re: [T3] odd brake light issue...


On 28 Jan 2005 at 20:50, Keith Park wrote:

> 14 brake light switches... mostly old but good ones.  All died on the Notch
> with the DOT5... the NEW ones would last a month, the old ones maybe 3 or 4
> (and I dont drive that car much) Ive NEVER changed one in 16 years on the 71
> which is still DOT 3.

I get a few years out of mine with DoT-5, and by now they are all Brazilian. I 
have the impression that the German ones last longer, but I don't have reliable 
data on them.

>     I finally installed a mechanical switch but I dissected the the last
> hydro switch that died and it appeared the the plastic that held the ball
> bearing swelled and stuck the bearing.  They all failed the same way, took
> progressively more pressure to get the switch to close till finally it
> wouldnt.

I cut apart one Brazilian and one German (brake light switch, that is) and the 
internal construction was COMPLETELY different. All metal parts where they were 
important in the German one. The Brazilian one was almost all plastic, 
including the part which had melted when the switch started getting resistive 
and got hot.

There was no ball bearing in either one.

You and I must be buying slightly different Brazilian switches. I think I was 
buying them from RMMW.

-- 
*******************************
Jim Adney, jadney@vwtype3.org
Madison, Wisconsin, USA
*******************************

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