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Old 10-03-2019, 08:24 AM
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TPMS

Can you confirm there is no TPMS sensor inside the wheel and it's actually a sensor in the wheel well that measures revolutions to monitor tire pressure? Iím getting my tires swapped to new rims and there is no sensor. I assumed there was one?


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Old 10-03-2019, 08:25 AM
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This is on a 2006 4.8.


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Old 10-03-2019, 08:40 AM
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Quote:
Originally Posted by sidneyj View Post
Iím getting my tires swapped to new rims and there is no sensor. I assumed there was one?
There is no sensor. Some shops will try to charge extra bc the systems says it has TPMS. It does not have senors.

Now is a great time to add TPMS sensors for that future Android radio tho!
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Old 10-03-2019, 09:32 AM
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the E53 has BMW's legacy RPA TPMS system that does not use sensors. The DSC module monitors individual wheel speed, and when a variance is detected due to an under-inflated tire, the light is illuminated. Any time you air up a tire, you should hit the reset button on the switch console
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Old 10-03-2019, 10:57 AM
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Ditto the replies above. BMW has two types of tire pressure monitoring systems...a direct (RDC/TPM) and an indirect (RPA/FTM) system. The e53 from 4/04-til end of production...used the indirect RPA/FTM (flat tire monitor) system.

So your 2006 e53 does not use TPM sensors inside the wheels. It uses your ABS/DSC wheel speed sensors to calculate wheel revolution to determine the loss of air in the tire:






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Old 10-03-2019, 11:35 AM
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Thanks everyone for your replies!! I was at the tire shop and needed an answer quick or I wouldíve researched it. Appreciate all your expertise!


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