Until now (V6.1.0) Xhorse VVDI MB Tool supports all key lost EIS type(FBS3):
W166, W197, W212, W218, W246
W172, W204, W207
W216
W164, W251 (-2009)
W164, W251 (2009-)
W169, W209, W211
W202, W208, W210
W203, W463, W639
W639(2009-)
W906
W221
W215, W220, W230
Some youtube guides:
VVDI MB Program Benz W211 All Keys Lost
VVDI MB bga tool calculate W204 W207 all key lost key pass
VVDI MB BGA Tool Program Mercedes W207 All Keys Lost and Change EIS
VVDI MB Program w212 w166 all keys lost
program Mercedes W202,208,210 when all key lost via OBD with Vvdi MB Tool
How To Make Key For Old W203 EIS All Key Lost By VVDI MB