CGDI Brand Mercedes-Benz MB FBS3 BGA Smart Keyless Go key 315MHz / 434MHz for Benz W164 W166 W204 W207 W212 W221

Note: This is a proximity key (not for Push to Start buttons on gear shifters). We have already set the frequency to 315 Mhz which is the North America standard. 

Pro Tip: The frequency of this remote can easily be changed with VVDI MB or Key Tool Plus to either 433 or 315 Mhz. Use the 051 Key Data when programming. 

NOTE: Battery must be removed during programming. Works with all Mercedes programmers such as Xhorse and Autel.