Sorry to hear bout that. That's why it pays to read up on all you can on this forum... the tire pressure monitor (how it wasn't an actual sensor in the tire/wheel) was discussed a few times in threads in the wheels/tires forum I think. This is why I'm swapping my runflats out when they're done with. I seriously believe that BMW's claim that the suspension was designed for runflats is just advertising.. it's been said here before that running with non-runflats didn't affect handling or ride quality at all, so I'll take my chances with regular ole tires thank you very much.
Oh, and dont' worry that $45 will be less painful with time
