rear window defroster

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63lincoln - 06 Nov 2007 16:15 GMT

My wife's '82 300sd defroster doesn't work, but the light does go on when I flip the switch on. I'm hoping it is a simple fuse problem. Can anyone advise?

Thanks

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Tiger - 06 Nov 2007 22:22 GMT

Replace fuse. It has two different circuit that there is also a relay to
route high current to rear window. So light on switch doesn't mean power to
rear windows.

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Tony Pike - 27 Nov 2007 00:28 GMT

I have the same problem on a 1988 420 sel. I replaced all small fuses in the
fusebox under bonnet. Is the high current fuse the long black one ( abot
5") in the same box that might need replacing??

> Replace fuse. It has two different circuit that there is also a relay to
> route high current to rear window. So light on switch doesn't mean power
> to rear windows.

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