I put 34psi in the front and 40psi in the rear, i guess i would expect the TPMS to read out pretty close to that on an immediate drive. I have never had a car that aloowed me to actually see the pressures immediately while driving. I bought a brandy new expensive tire gauge, so im hoping it is correct right out of the box. I truly understand how pressures work when the tire heats up/cools. So im not asking for a disortation on that subject. Just simply asking Yall to check it out with your gauges or give me insight into your experience with tire pressure in this vehicle. Has the TPMS remained the same throughout this run? Havent really had a chance to research or learn about BMW so far, too frickin busy.