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Date registered: Oct 2002
Vehicle: 1967 250 SL, 1963 220Sb
Location: Los Angeles / Altadena
Mentioned: 3 Post(s)
Quoted: 126 Post(s)
Have you had the battery tested? When the car is running, what is the voltage on the battery? When the car is off, what is the voltage on the battery? If the voltage on the battery isn't a couple volts higher running than off then I would suspect the alternator diodes - the battery isn't getting charged. If the alternator is doing its job then I would go through the fuses and see what circuit is drawing current.
Currently: 1967 250 SL, 1963 220Sb, 1965 300SE Lang, 1971 280SE parts car, 1972 Alfa GTV, 1965 Alfa Duetto, 1993 BMW R100R
Past: 1971 250 C, 1985 300 TD, 1967 250 S, 1968 280 S,1981 300 D, 1982 280CE, 3 Facel Vegas, Borgward Isabella Coupe, Alfa 2600 Sprint, Volvo P1900 (yes), numerous less interesting Volvos, ...