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I have run flats. No read out. Although I believe that probably has no bearing on whether the sensor can detect PSI or temps. Run flats still have air in them and work the same way as a regular tire with the exception of an additional structure inside. Also as I've stated on a previous thread I believe all of our cars have the same TPMS installed. Its a mystery why BMW didn't enable all cars to show the PSI read out. But the TPMS is monitoring tire pressure otherwise we wouldn't be getting green/yellow read outs on the tire systems page. There is an old technology that BMW used to use that measured rotational speed (I think) of the wheel to let you know if your tire was flat. I doubt they still use that system due to it's lack of functionality. When the TPMS can do that and more for probably a similar price. As well as less parts for BMW to have on hand. AND one last thing.. The systems page specifically says "Tire Pressure Monitoring System".
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