For the VVDI Benz MB Tool, you can use NEC adapter read and writing key data. and the version support
v51, v57 v28, v35, v40 v03, v06, v08 (smart key)
v05, v07, v09 (smart key)
v59, v61 (smart key)
You should take off the original benz key nec chip before write the related number, and put it in the adapter, read it, and all data should be all right.