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      05-18-2009, 10:51 AM   #4
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Drives: 2011 M3 COUPE
Join Date: May 2008
Location: NEW YORK

Posts: 6,012
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take off the negative first, then you don't have anything to worry about with the positive. It's standard practice to do negative first, this way if you tap the body with your wrench or anything else there is no sparks. Once the negative is disconnected it is then safe to work on the positive side with no chance of sparks, or a short circuit.
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