You have the PRO version of the nav so OS updates are done by the dealerships only, normally as part of the service routine (you have to ask though).

As for the 7 digit postcode search, thats a function of the map disc and BMW do not supply disc with this, so you would need to get a non OEM modded map disc, it uses the POI menu for the search, it's a clumsy way of doing it but works.

5 digit postcode should work, (use the town field and just type the postcode not the town name), then input the house number.

BTW 2010-1 is the latest PRO disc version.

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Sept 03, M3, Silver Grey. Retro-fits: Modded Mk4 DVD Drive, OEM Bluetooth, VR Control, Rainbow Speaker Upgrade, Sony SOT Amp, HK Sub, CCFL, Intravee II, NightMode.