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      12-18-2013, 09:14 PM   #3
02420X3
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Drives: 2011 X3 35i
Join Date: Jun 2011
Location: Boston

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Canada uses an indirect TPMS system, which measures differences in wheel rotation speed. Please do check the pressure on all 4 tires. There may be other reasons for differences in wheel rotation speed, but tire pressure is the most obvious.
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