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      07-16-2008, 06:08 PM   #3
atr_hugo
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Drives: '13 135i
Join Date: Jun 2007
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The TPMS sensors are looking for inflation within a range - so one or more tires may be below the appropriate range.

Take a peek at the owners manual for runflats/tires/TPMS - it'll explain it better than I can.
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