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Old Jan 20, 2004 | 01:37 PM
  #1  
cherry stout's Avatar
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300CD Turbo Coupe
electrical failure

In my 1985 300CD, I have lost all electrical power. I started with the battery(good), alternator(good), and Fuses(good). Now where do I go, too systematically check the whole system for relay falure? TVV@xmission.com
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Old Jan 20, 2004 | 08:16 PM
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sosh's Avatar
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2010 ML550, 2010 E350 4M, 1966 Corvette Convt C2
Check the battery cables and the main feeds to the fuse boxes and relay boxes. Beyond that you will need a schmetic to properly trouble shoot
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Old Jan 21, 2004 | 01:54 PM
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02 W163, 84 W123, 03 E39, 98 E39
Re: electrical failure

Originally posted by cherry stout
In my 1985 300CD, I have lost all electrical power. I started with the battery(good), alternator(good), and Fuses(good). Now where do I go, too systematically check the whole system for relay falure? TVV@xmission.com
Check/clean your battery contacts of all oxidation, Next, check the main fuse, trace the positive wire from the battery. Make sure your ground wire off the battey hasn't rusted off where it connects to the frame/metal body.

Use a multimeter to check for voltage tracing from the battey towards the fuse fusebox.

let us know what you find.
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