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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wheels and Tires Forum Sponsored by The Tire Rack > Tires pressure monitor/inductor



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Wheel offset calculator courtesy of BimmerPost.com. You may use this calculator to calculate what tire sizes you might need if you upgrade your tires, or what wheel sizes/offsets are compatible with your car.
    Current Wheel Width  inches             Current Wheel Offset  mm.
         New Wheel Width  inches                  New Wheel Offset  mm.
 
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- WHEEL DIAMETER
ORIGINAL TIRES
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NEW TIRES
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Based on your stock wheel setup, your new wheel will have:
Original Tires Diameter (in.)
      New Tires Diameter (in.)
  Difference in diameter (in.)
           Percent Difference %
                     
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      07-27-2005, 04:31 AM   #1
Eldalo3
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Tires pressure monitor/inductor

Does the E90 has tires pressure monitor/inductor? how to check the pressure? does it come with the 325 SP AND 330 SP? if i have 325 SP and i bought 330 SP wheels will the tires pressure monitor/inductor still work?
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      07-27-2005, 04:56 AM   #2
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Yes, there are no sensors on the wheels itself. The sensors are based of data from the DSC & ABS sensors that measure the rotational speed of the diagornal wheels (ie. RF/LR). BMW TPMS system will not tell you the pressure in the tires.

According to Continental Teves (supplier of DSC system), the warning will come on if there is a drop of 9-21 psi.
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      07-27-2005, 04:59 AM   #3
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Thanks for the reply.
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