05-11-2018, 12:22 PM | #1 |
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TPM question
I have a 2012 uk spec xdrive m30d.
The idrive has tpm but only says all is ok. It does not show actual pressure values. So does each wheel have a sensor in it or does it use motion somehow to detect a flat. I’m asking cos I’m going to swap rims and don’t want it telling me off constantly |
05-11-2018, 12:38 PM | #2 |
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You have the old-not-so-good-ABS-based system. I.e. system measures rotational speed and if one wheel is off - low pressure - it sends a warning. Not telling which tyre.
You have to recalibrate after tyre swap. |
Appreciate
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