I have a short - Mercedes-Benz Forum

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post #1 of 1 (permalink) Old 07-09-2012, 04:31 PM Thread Starter
BenzWorld Newbie
Date registered: Jun 2012
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I have a short

Hey Guys, I have an 82 380SL,with a small problem. I have installed a 351W Ford motor,and C4 auto trans. The install is finished and the car runs and drives well,but there is something staying on when the key is off. Touching the battery cable to the battery with everything turned off,produces a spark,and the battery goes dead in a few days. It charges ok when running,(I still use the Mercedes alternator)but when the key is turned off the charge light stays on. There are several systems on this car that I do not understand,the security system for instance. Also there is a phone in the car,permenatly connected,and several small black sensor type boxes in the grill,and under the hood. Any help appreciated.
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