Smart Mercedes vvdi key

The Xhorse VVDI FBS3 KeylessGo Smart Key is an upgraded version of the standard BE key designed specifically to support Keyless Entry and Push-to-Start (Proximity) functions on Mercedes-Benz vehicles. While a standard VVDI BE key only acts as a remote (you must insert it into the ignition slot), the FBS3 Smart Key gives you full hands-free proximity operation.