Use part numbers only for an update of the map data. ***** See Aftersales Assistance Portal (ASAP) at: Information bulletin/ 07 Infotainment and communication / 3 Navigation update: you will find all the necessary information on current navigation products and enabling code technology! ***** ***** ***** ***** IMPORTANT: Please note that once the Download button has been pressed in ASAP or the enabling code has been called up by the tester cancellation and reimbursement of costs are no longer possible. ***** !!! Attention !!! Only for vehicles with a production date of 03/ 2010 or earlier is it possible to carry out the update using a USB stick . For vehicles with a production date prior to 03/2010 it is first necessary to carry out an integration level update at the dealership. As an alternative, for vehicles with a production date prior to 03/2010 it is also always possible to carry out the update via ISTA/P . ***** ***** ***** ***** For vehicles with Navigation system Professional