08-12-2014, 11:11 PM | #2 |
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First you need to check if you have metal stems
If you have tech package you should see actual PSI... If you don't then you need to code it...also you can code temp too... http://www.2addicts.com/forums/showthread.php?t=1010377 http://www.2addicts.com/forums/showthread.php?t=997749 |
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08-13-2014, 12:17 AM | #3 |
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I have metal stems and the tech package. I do not get tire pressure displayed.
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08-13-2014, 10:40 AM | #8 |
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it does... if you don't have metal stems you definitely have no readings....
maybe in the US but in other countries they come with rubber stems... |
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08-13-2014, 10:45 AM | #9 |
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Yes all US cars have TPMS since 2008 (metal stems)
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08-13-2014, 11:04 AM | #10 |
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Here is a shot of my TPMS screen. No psi or temperature.
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08-13-2014, 11:13 AM | #12 |
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08-13-2014, 11:23 AM | #13 |
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temp is cool, they should have that feature standard. Mine does have psi though
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08-13-2014, 12:19 PM | #14 |
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08-13-2014, 12:27 PM | #15 |
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March 25 build date on mine. No temp or pressure
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08-13-2014, 01:18 PM | #17 |
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Mine was built in March 2014 and it shows psi readings. BMW changed the tire pressure monitor sensors to a different type in March 2014, but that still doesn't explain why some folks who have cars that were built in March don't have it.
Check your driver's door jamb, if you haven't already, and you can see the build month of your car. |
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08-13-2014, 04:15 PM | #20 |
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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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08-13-2014, 04:33 PM | #21 |
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well not really the rotational one is much cheaper cause it's done through the ABS sensor i think and doesn't require a dedicated sensor inside the tire... ie. canada only gets that one with no PSI....
no matter if it's the FTM or TPM they will call it TPMS for consistency purposes |
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08-13-2014, 06:33 PM | #22 |
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No, mine was built after march and i dont have rft...still no read out
Sorry to beat on a dead horse but all USA autos (not just bmws) have tpms (not ftm) manditory since 2008
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