My bulb out indicator idiot light comes on every time I turn my lights on (also on first click position marker lights), but I checked, and allll my lights work. Taillights, brake lights, turn signals, marker lights, city lights, highs, lows....all of it works. What gives??

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'86 420SE Euro
904 Midnight Blue, Gray Velour
Dad bought it new, now I own it.

"A Mercedes-Benz is like a fine wine, it only gets better with age."