Outside Temperature Gauge

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garycb's picture


I have a 1987 560SL - W107. The outside temp gauge has been working fine until now. Presently the gauge is pinned at -20 constantly. This is constant whether the ignition is on or off. I have tapped on the sending unit but no affect. I checked the plug on the back of the gauge itself, it appears to be snug. I haven't checked any fuses as of yet.

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