Outside Tempature Gauge Illumination on dashboard...
I have a '95 S500 (W140). All of a sudden, the Outside Thermometer digital gauge on the dash has lost most of its illumination. The rest of the dash lights above this digital display are fine, and correctly brighten or dim with the turn of the dial on the left side of the dash.
Any ideas on why the outside temperature digital display is not lit as bright as it was before; and how to fix???