VVDI MB Tool Benz professional key programmer,it can support read/write W204 W207 W212 EIS/ESL with MERCEDES EİS ESL DASH OBD TESTİNG TOOL. And here is the testing instruction.
VVDI MB Tool and Benz EIS ESL Testing Tool Connection
VVDI MB Tool software,choose EIS Tools
Click Read EIS data
Reas OK.
Then click ESL Tools.
Click Read ESL Data.
Read OK.