Do you put air in the BMW tire like other cars or is there something different that you do? I'm having trouble removing the cap on the little air valve.
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2007 BMW 530xi Question: Putting air in the tire
Answer #1patrick mannion from Greg Solow's Engine Room, October 17, 2010, 14:05Master
The upper dust cap just screws off like any car. If your car has tire pressure monitoring you will see a nut at the valve stem at the rim level, this nut is not to be open it (it would require a socket or wrench anyway to open it,