Hi, did u have any luck with this. I have an a6 I,ve had from new . the sat nav started to play up last summer 2010, showing us miles out of position. then worked again for a couple of months finally failing altogether. worked for a couple of weeks when temperatures were well below freezing, stopped again as soon as things warmed up. asked for advice at audi dealer, they told me i'd have to book it in for a diagnostic test. i haven't had the car serviced there since the warrenty ran out, so they really didn't want to know. would like to know how you got on
howard morris, April 2011