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Old 02-05-2012, 11:32 PM
ard ard is offline
Resident Curmudgeon
Location: Sierra foothills
Join Date: Jul 2009
Posts: 11,672
Mein Auto: '12 X5 35d/E39M5/996TTX50
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You will need BMW to run the TSB on parasitic drain- they will log every activity on the bus over a day or so and try to find whta modules are waking up at the wrong time and draining the battery.
Keep it as simple as possible...but no simpler.
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