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Old 11-22-2020, 03:31 PM
Johnny_5 Johnny_5 is offline
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Join Date: Sep 2014
Location: California
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Quote:
Originally Posted by andrewwynn View Post
It's almost always the alternator. The slip rings and brushes specifically.

Monitor real time voltage as you coast to stop from 30 mph.

If the voltage drops even 1/2 a volt the alternator is not doing its job.

When it happened to me the voltage dropped enough that the abs trifecta kicked on.

I replaced my brushes and slip rings on mine and did just the bushes and changed the polarity of the brushes so the other slip ring would take the abuse and add years to the lifespan.
Sounds like you rebuilt yours. Do you have a link to how you did it and parts list by any chance? Would love to get to it this coming weekend if all goes well.

Lately cars been acting weird no tri errors but have had the 4x4 and abs kick on. I thought it might have been that known gear issue but now I’m leaning to electrical.
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2004 X5 4.4i 202k on odometer
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