E500 Battery Drain

2003 MERCEDES BENZ E500
70,000 MILES • V8 • AUTOMATIC
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REACHROMANO
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  • 1 POST
My 2003 E500 has a battery drain which I believe is 2.5 volts. Any ideas as to what the cause of the drain might be and how to detect what the cause is?
Feb 17, 2011 at 1:35 AM
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MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
Place an amp meter between battery Pos and the battery cable, with doors closed and key out read the amps, if above say 1.5 (this will allow for clock, stereo and any ECU memory) start pulling fuses one at a time to isolate the draw, start here.mark (mhpautos)
Feb 17, 2011 at 1:40 AM
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