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Old 04-01-2013, 08:05 PM
ard ard is online now
Resident Curmudgeon
Location: Sierra foothills, California USA
Join Date: Jul 2009
Posts: 15,882
Mein Auto: '12 X5 35d/E39M5/996TTX50
DME is the engine computer.

I assume the energy diagnosis is them looking at the history of energy use/recharge/driving patterns...

Your 2009 battery is close to 6 years old. BMWs start doing funny things as the batteries get old. I'd think about a new one, but NEVER at a dealership


Keep it as simple as possible...but no simpler.
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