Do you have this?
How to update GPS maps This article will provide you with the information on how to update maps on your GPS system. If you are not sure whether your map is up to date, this article will teach you how to update it conveniently. The process of updating your map may be different depending on which type of vehicle you drive, but the steps are mostly similar.
Updating your GPS maps depends on what manufacturer and specific GPS model you own. You can generally update the GPS maps by either downloading them through the system or buying updated maps on a CD.
To update the initial gps model gm-510, one must locate a proper satellite or wifi signal and scan for a software update. If one is available than click the update button and the device will be up to date.
Contact the company that your GPS comes from. You can find their number listed on their website. They will be able to to tell you where to find the necessary items to update your GPS.
To update your Garmin gps all you would need to do would be go to garmin.com. They have links for your specific model. Then it will give you a step by step instruction on how to instal the update. Starting with how to plug your gps into your computer or connect it to your wifi.
you need to update the Disk in the GPS console which is located in the LHS hatch in the boot area with a current Disk which you can Buy from BMW or if you know someone who has a current disk copy it and install it
under the passenger seat
Satellites orbiting around earth send information to the GPS , so they detect the change & fix it in their memory.
The best automotive GPS system available would be one that would update automatically on a weekly basis. Roads are constantly changing therefore maps are constantly outdated.
Check Magellan website. They recently released a map update plus upgrading it to a cross-over gps...
Most GPS devices update their software automatically, so users don't need to be concerned with upgrades.