Hi I have A3 2009 1.9tdi sport and I had the RNS-E unit fitted Iv been playing the 2015 sat nav cd for a while now so I decided to update it so In went the 2017 cd and it said loading for all of 5 seconds so I'm not sure if the maps have updated it all looks the same to me and seen on YouTube it normally has a % on it and also the person I got the cd off said it would take 15mins but it took less.