Most W204 W207 W212 ESL 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.
Package includes:
1pc x CGDI ELV Emulator Renew ESL for Benz 204 207 212
How to Replace ELV Simulator with CGDI ELV Emulator & CGDI MB?
OBD connects Auto，Read EIS data
Turn to“compute password”，collect data
The collection process will not be described one by one, upload data, successfully query the password and copy the key password
Turn to the EIS interface and paste the key password
Save data，Default file name
Put on the simulator and clip the K-line
Click“ELV”，enter“ simulator”
Read Simulator，display related information
erase simulator
Load the EIS data just saved and check whether the key password is correct
Click 'write' button
Write ELV success, please insert key into EIS and switch ignition on for activation
Actual operation
Read simulator again, show activated, match successfully!
