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Old 07-02-2012, 09:37 PM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 25,236
Mein Auto: 02 BMW 525i M54 auto 130K
Weird things happen to bimmers when you don't have reliable power:
- One user's experience debugging a half-dead instrument cluster (1) which, after testing the fuses (1) battery & alternator (1) thankfully turned into an alternative battery search (1) and a simple battery replacement DIY (1)

You can easily check the power using this information:
- DIY how to test a BMW battery & alternator

I would suggest the OP read this post which shows how to check the speed sensors in about five minutes:
- How to diagnose the BMW ABS BRAKE DSC/ASC trifecta (1) & why the 5-minute ABS DIY quick test doesn't always work, especially on brand new non-OEM wheel speed sensors, by Quick99Si (1)

Note: All of these are from the bestlinks.
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Please read the suggested threads and add value, either by pictures or by descriptions, so the next person stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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