How to: Program new key on Mercedes Benz W639 using CG Pro 9S12 and CGDI Prog MB Key Programmer.
Step 1: Read EIS data with CG Pro 9S12
Take down W639 EIS , check the number
EIS related chip HC08 1L02M
Open CG Pro programmer software, select Anti-theft computer->Benz->EIS W639 (HC08)
View wiring diagram
Physical operation
Read data successfully and save it
Step 2: Write Key with CGDI MB
Open CGDI MB software, Load the data just read by CG-Pro
Load EIS data successfully, show the password directly
Save EIS data，please default the file name
Go to “GenerateEE”, Load the EIS data just saved
Load successfully，please check whether all information is correct
Click“Generate key file”, please wait…
Key file generated successfully，please save data file
Go to “Read key”
Insert new key into CG-MB
Click read, show related information
Click write, please note the prompt, Click ok
Choose一unused key data file，click and open the CGDI Key Programmer
Write success, put EIS back, then just get on car to learning it