[R129 SL] FW: schematic request ~ UPDATE~ working

[Jan Kuylaars]

It is electronic with sensor on the gearbox ,only sensor-cables or
speedometer is defect.
Transm. inductive speed sensor
Beneath vehicle, left side of transmission, hidden.



Jan Kuylaars Westerhoven

-----Oorspronkelijk bericht-----
Van: r129list-bounces at mbcoupes.com
[mailto:r129list-bounces at mbcoupes.com]Namens mooncusser
Verzonden: maandag 30 april 2007 2:23
Aan: SL Mailing List
Onderwerp: Re: [R129 SL] FW: schematic request ~ UPDATE~ working

Hi all,
Well I found a used relay control on ebay for a 2004...changed out the
bracket with my old one and bingo...bango...
everything the way it used to be before winter. Total cost 247.00 and my
time of course...

Now I am looking for info on speedometer not functioning...pulled out onto
the highway... the needle bounced a couple of times
and stopped working. Any ideas...??? Does it use a speedometer cable or is
it electronic??? Any help appreciated...


On Sun, 15 Apr 2007 08:36:51 -0400, you wrote:


>Good morning all,

>       I removed the relay control and inspected the circuit boards

>inside. No cleaning will ever get these back in working order. Looks like

they

>spent some serious time rusting. Best solution is to replace the board.

>Thanks for all your help...

>On Sun, 15 Apr 2007 00:11:21 +0200, you wrote:

>

>>Maybe you can fixed it. There is nothing special electronics inside. Only

>>connectors, printed circuit wires and relay's. So I should try to take out

>>the complete control board. Take a brush with cupper hairs and clean whole

>>the printed circuit board. Where the cupper wire parts then are

disappeared

>>, you can easily clean the existed  part and well a normal wire over the

>>missing part from the printed layer. The contact from the relay you can

>>clean with fine sandpaper. The relay's and connectors are also welded in

the

>>printed circuit. You can well them again with fresh solder tin.  I believe

>>it is to repair.

>>

>>Jan Kuylaars Westerhoven

>

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B F Rollins II

1)1963 220 (now history)
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2)1981 240d (body cancer claimed this one )
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