I am replacing my run flats with Michelin Super Sports, and a fifth full size wheel and tire.

How will the car deal with a 5th TPMS sensor in the car.

Does it know which are on the ground and what is in the trunk ??

Will it only read 4 good signals, even if one on the ground is flat and the one in the trunk is good ??

I can't get the same answer from multiple BMW dealers.

Thanks

Wayne