Hello guys, I bought myself a 2003 Phaeton V6 petrol. Now I have the message in the zab ” Navigation not available” the reading of the error memory resulted: 0 error detected. But I found that the software versions of the Zab and the Navicomputer do not fit together. A flashing with the original Vw-Update Cd is not possible because the two devices probably because of the different software levels do not communicate with each other. i.e. the update is not started at all. Who can flash me a single device to the appropriate data level ( ZAB or navigation calculator)? I would like to see answers like “Buy a Tomtom or I had that at my passat also”! I need expert help! Greeting Rocky.