Today one of obdii365.com customer consulted our technician whether the Xhorse VVDI Benz MB BGA Tool program his Mercedes W164 2008 model when all key lost.
Here is the replay:
VVDI MB Tool support ALL KEY LOST for Mercedes W212 models only. BUT if you have original MB W164 key in hand, it will do all key lost.
Because the NEC adapter of VVDI benz can only read & erase keys but not write. It is still not the perfect tool to program old MB models or used MB keys.