Battery drainage

Mercedes Benz E350 2009 E350 159000 miles
Something is draining my battery after it sets for a few hours
Leland from United States a year ago  
LE
1 reply 
Bond007 from United States a year ago
Have you made your way to the trunk where the battery control module rests just on the backside of the trunk where the lid shuts it’ll have a large cable running to it and then a smaller band of I’d say six or so wires a lot of times these modules get wet, extremely wet and they start to short out they can arc and sometimes this can cause the vehicles battery to drain
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