I just purchased a 2012 Q5 (without the convenience key) and I have a question about the central locking.

After I turn off the car, I'm used to being able to hit the "lock" button to lock all of the doors so that I can exit and walk away. I can't seem to be able to do this on the Q5 - the key fob lock function won't work either. I need to close the door and then I can lock all the doors.

Is this how it's supposed to work?