[R129 SL] hardtop window heating

[George - R129]

Dag, Jan .... have you tried to check the resistance across the male 
plug terminals where the wire from the hard top plugs into the body and 
which you must have disconnected to take off the hard top. You could 
also check the socket (female) that has the plastic cover to see that 
you have 12 volts.

George
1990 500SL
Cognac

jan kuylaars wrote:
> Hello fokes, i am back again
> Jan the flying dutchman with an other e-mail adres kuylaars at hotmail.com
> for direct mail i read every day jan at rian-bv.nl.
>
> I put off yesterday my hardtop because the weather here is now good.
> In the winter i remarked that my electrical heating from the 
> backshield is not working anymore.
> So i put off the covers and made a mesurement. The resistance i 
> measure directly on the cupper wire from the heating system is more 
> than 20 Kohm. So i thaught that it must be some 100 ohms instead to 
> let some current flow tru the wires inside the glass.
> Has somebody experience wih this? I cannot find anything in the 
> maintanance DVD.
> The thick flat cupper wire is welding on the plate, so i suppose that 
> the black cowl line underneat is the transportline to the thin wires 
> inside the glass. Maybe i must heat the welding to get a good 
> connection? but that is risky for the glass. I cannot discover how the 
> current flow should be and i am affraid that the only possibillity is 
> to change the complete window. I can see a little inside cut in the 
> glass at the top, but i cannot beleave that is the reason.The in and 
> out wires are in the middle of the window.
>
>
> greetings from Holland.
>
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