Today the problem was away the DAB button was back.Mmm, that would be the reason why my car was rejected as I was constantly getting this issue. The problem seems to sort itself out after leaving the car switched off for a period of time, but Alfa denied there was an issue with it despite as you say having a perfect DAB signal.
My 8 month old GQV has occasionally done exactly the same, DAB button goes AWOL only to return after a couple of hours !!!Today the problem was away the DAB button was back.
Very strange problem :devious: