Audi Connect Problems
It seems like there's problem with Audi Connect losing synchronization with the car so the vehicle data is not up to date. Either that or you see a "Tech failure" message. This may be plaguing more than the odd Audi A4 owner.
One short term solution was to reset the MM, but it doesn't seem to be permanent because the car will log out of out of Audi Connect by itself after a while.