Updating the Volkswagen RNS 510 navigation system requires specific physical media and steps that differ from newer, web-connected infotainment systems. Current Status of RNS 510 Updates
Map version v18 (often labeled as V18 West Europe or East Europe) represents one of the later official firmware/map combinations released for the RNS 10 platform.
If you have a legitimate copy of the v18 maps or are attempting an update, you cannot simply copy a file to a USB stick. The RNS 510 utilizes specific media:
The RNS 510 is a premium head unit developed by Continental (originally under the Blaupunkt brand) for the Volkswagen Group. It features a 6.5-inch touchscreen, a 30GB hard drive (HDD), DVD drive, and SD card slot. Unlike modern Android Auto or CarPlay units, the RNS 510 stores its map data directly on its internal hard drive.