Hi I've got a 2016 A4 2.0 Tdi 190 bhp Avant S Line. love the car but its got an annoying fault. the long term fuel consumption recorder spontaneously resets itself every few weeks. At first I thought i was accidentally brushing the button but I know that's not the case. Has anyone else seen the same ? More importantly, has anyone found a fix ? It's currently with a dealer and they seem flummoxed. Thanks in advance.