Have we used a circuit test light to verify no voltage to the headlights themselves? The presumtion is no voltage. You need to verify voltage is present or not, at the plug that connects to the lamp.

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81 300CD (sold) 1972 280 SEL 4.5 (sold) 1966 250 S 4 spd (sold) 1974 450 SL (sold) 86 BMW 325ES (sold), 1973 280C (sold) 1988 300 SE.