Thanks Mike for sharing your progress and experience. Good job!

Why are your two left wheels diffrent temps? Parked in the sun or snow? Do we need to care about tire temp? They must get hotter when your driving on them?
And that yellow button on the lower display, that will light if there's an issue? I have an 04, I get a light on the dash and have a button to reset it - maybe you can get one of the reset buttons and rig that up as your "problem light"

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2004, X5, 3.0, 202k+