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Old 11-21-2013, 12:32 AM
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AzNMpower32 AzNMpower32 is offline
Join Date: Mar 2006
Location: WNC
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Well, if the clock loses the time or you lose settings, your battery its on its way out.

There is a designated sleep mode on all modern BMWs to reduce draw on the battery. In fact, many vehicles drain their batteries because it doesn't go into sleep mode as it should after approx 15-20min.
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