Car in question is the 83 300D. Today while driving, suddenly the battery light, the brake warning light, and the reserve fuel light came on for no reason, and would not go off. All other electrical seem to work ok.
Checked the battery voltage and it is 12.87 with the car shut off, and 12.5 when idling. Rev the motor and the battery voltage does not change. So…… I think I either ate the alternator or the voltage regulator. However, the voltage regulator was changed about 3 months ago with a brand new one. Also the alternator belt is tight and the alternator is not making any weird noises or smells.
Any ideas, as I am 75 miles from home and will be nursing it back before dark? HELP.

Glenn

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2012 Mercedes ML350 Bluetec 102K (hers)
2005 Corvette 55K (fun car)
2002 VW Jetta TDI 238K (mine)
1998 Volvo S70 T5 Turbo 211K (kids)
1994 Ford F150 4WD 246K (firewood hauler)
1983 Mercedes 300D 384K (diesel commuter)