I have a 2008 A8 but I am continually having problems with the MMI System. It is intermittently cutting out whilst I drive along, as if the system is re-booting. It happens to radio, CD, Ipod, telephone and satnav, which ever is in use a the time. The fold out screen goes blank, then resets ad there is a loss of sound from the speakers. Only lasts a few seconds then all is well again. Does anyone have any ideas as it has now been in to the dealers 6 times but no faults show up on diagnostics and it always performs flawlessly while thy have it!!
Any help appreciated.