W204 W207 W212 ELV simulator for MB KEY OBD2 works for all C series, E series and GLK, including C180，C200，C280，E200，E260，E320，E350，GLK200，GLK350 (from year 2006 to 2014)
CGDI ELV Emulator Renew ESL Pour Benz 204 207 212 Fonctionne Avec CGDI MB Benz programmeur de clé
Most W204 W207 W212 will damage with EIS. In this case, there are two possible reasons and solution:
ESL motor is damaged and need to replace a new motor
NEC chip is locked, theoretically it can be unlock, actually it needs to replace new ESL.