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Old 02-06-2013, 10:45 PM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 21,986
Mein Auto: 02 BMW 525i M54 auto 130K
I'm in the middle of debugging my E39 (same M54 engine you have) parasitic battery drain so the OP might benefit from the extensive writeup I did over here to debug and narrow it down with respect to the Final Stage Resistor (aka Final Stage Unit):
- One users experience diagnosing parasitic draw in a dead battery overnight (1)

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Please read the suggested threads, where the best always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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