hi , i have a 2006 A6 c6 s line avant 2.0 tdi.it has the full colour mmi and mfsw with driver info display in the instrument cluster. my problom is that the driver info display does not power up immediatatly when the car is started, when driving for about 20/25 mins the display suddenly powers up and works perfectly for the rest of the travelling time. it will usually work if the car is started soon after but if it is left for about an hour or so the cycle starts again. it has been going this for about the last year or so off and on and i really want to get to the bottom of it . the car has been scanned with vcds and no faults present. i read somewhere that this can be caused by a volt drop on start up but that it should only occour for a few seconds. it still is on its origional battery but is starting perfectly so i see no reason to doubt the battery at this point. any input is appreciated. cheers, brian.