4 Button Remote Car Key 868Mhz ID46 - PCF7942 For BMW 7 Series E65 E66 E38 E39
Transponder: ID46 - PCF7942. Frequency: 868Mhz. You cannot program this key yourself. You cannot program this key by following any YouTube videos. THERE ARE DIFFERENT TYPES. BMW 7 Series - CAS1 (07/2001 - 06/2008).