Hello all. After recently purchasing my first Mercedes i have discovered that even though it has a Uk map and knows my location, if i go to enter a destination i am not given the option of entering a post code but rather am asked to enter the state or province of my destination. Its a 2011 W212 with an NTG4 head unit. I have purchased some updated map dvds from ebay (probably a waste of money) with the hope that the update would give me a uk set up rather than what looks like a US one. Unfortunately after loading the first dvd i get a message saying its not compatible. Not sure if this is just because they are from ebay or because of this strage US setup if got going on. Any help would be much appreciated.