Quote:
Originally Posted by cncmastr
This might seem like a silly question, have you tried to manually set the air pressure, then reset the TPMS sensor on the iDrive screen and see if that shakes out.
|
Yes... Unfortunately, the conditions were such that I learned nothing.
I set all tires at 37PSI and following the TPMS reset, they were all displaying exactly 35.0 +/- 0.1. So then my question became -- is TPMS actually measuring pressure, or just assuming a correct set-point (which it declares as "35") and then inferring pressures from temperature and rolling radius differences? I haven't had these tires off the rims yet. Are there actual pressure sensors on the M2?
I suppose i could let a few PSI out of one tire and reset to see what happens to the display?