BenzWorld Junior Member
Date registered: Aug 2008
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Charging system problem
This is on a 1995 E300D automatic transmission
While driving the other night my radio started to cut out and the dash lights were getting dim. I first thought that the serpentine belt had come off or had broken. The belt was there and apparently in good order. I checked the voltage at the battery and it was low, about 10.8 volts, I was surprised everything was still working. It was late and I had to go to work the next morning so I bought a marine type starting/ deep cycle battery (something that could take the discharge cycles) I thought it was the alternator. I took the alternator off and took it in to a parts house, they put it on their alternator test machine and everything tested fine (voltage, diodes, regulator, etc) I did notice that the battery light does not come on when then key is turned to the on position. I believe the light is working as it has flickered on a few times briefly over the last week since this charging system issue has occurred. There is voltage at the B+ and D+ terminals when the key is on. There is a W terminal but there isn't anything connected to it. I don't know if there had been a wire there before. I can't find any loose wires underneath the car.
Last edited by TheViolet; 09-21-2008 at 09:05 PM.
Reason: left out a word