C219 2009 AMG55 VVDI MB fbs3 key programmed but key less can’t see the key works in a slot and remote locks unlocks any advice?
Here is the answer:
VVDI BE Keyless Go Key only supports semi-smart function if original key has two batteries.
1.Buy aftermarket keys
2.OEM Key with NEC Chip
3.Used OEM key, solder the NEC chip out and renew, then program it
Hope this could help!