Yes, Google Navigation will use mobile data on you device.
There are some very good free "offline" SatNav apps which store the maps on your phone, so they will still actually work if you have no mobile signal. Have a look at NavFree which is available for both Apple and Android devices.
23-05-2014, 08:02 PM
(This post was last modified: 23-05-2014, 08:09 PM by taxi.)
Check out CoPilot Premium Europe
Seems although they all need data connection switched on to use navigational features- the ones that use massive data are ones that download map data as you go, not ones that only require your GPS location.
Former 2011 Mk3 XTR owner