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Old 12-13-2012, 04:53 PM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
Join Date: Mar 2008
Posts: 25,081
Mein Auto: 02 BMW 525i M54 auto 130K
To echo what Ed said, start here for diagnosis:
- How to test a BMW E39 battery & alternator (1)

CUT-AND-PASTE TEACH-to-FISH RESPONSE FOR classic no information threads:
Sample information:
  • Mein auto: 2002 BMW 525i/M54 auto
  • List the DTCs found (e.g., P00m, P00n)
  • Also list the one-line description of those DTCs (don't force us look it up for you!)
  • Explain which debugging steps you followed (they all have 'em)
  • Explain your debugging test results
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

Last edited by bluebee; 12-14-2012 at 11:22 AM.
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