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Discussion Starter #1
Since many of you have installed aftermarket wheels and tires, how do you get the BMW tire pressure indicator to work. Are there sensors inside the stock rims that have to be removed and re-installed into the new rims?

I'm putting the SSR GT3 19" 9 1/2" rims all around with 275.30's on front and 285/30's on back today and this occurred to me at the last minute.

HELP !:eek:
 

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Steve - you don't need to do anything but recalibrate the system as per the owner's manual. The BMW system measures wheel rotation speed using the ABS sensors, which are not part of the wheel itself. Changes in tire pressure slightly change the rolling radius of the tire, and the system looks for differences from the calibration setting that aren't simply caused by going around a corner.

It is normal as your tires wear that you should recalibrate the system every once in a while. When you put on new tires, or change to a new tire/wheel combo you must recalibrate.
 

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Discussion Starter #3
Thanks for the instantaneous response ! That makes it easy.
 
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