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Originally Posted by 007X3
There are accelerometers in the transmission that always know actual vehicle speed. When the abs sensor detects wheel speed that does not correspond to actual vehicle speed it goes into default. That is the only explanation I can come up with.
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Sorry, I don't agree. Accelerometers measure acceleration, not speed. As I understand it, the ABS system works by comparing wheel speed sensors to each other, not to a reference signal.
Did you try changing the tire pressures either front or back to see if you could reproduce the noise, or alternatively, eliminate it?
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2007 X3 3.0si, 6 MT, Premium, White
Retired:
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2002 325xi 5 MT, Steel Grey
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