How to Program Mercedes W639 Key using CG Pro and CGDI MB

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

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Take down W639 EIS , check the number

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EIS related chip HC08 1L02M

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Open CG Pro programmer software, select Anti-theft computer->Benz->EIS W639 (HC08)

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View wiring diagram

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Physical operation

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Read data successfully and save it

Step 2: Write Key with CGDI MB

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Open CGDI MB software, Load the data just read by CG-Pro

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Load EIS data successfully, show the password directly

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Save EIS data,please default the file name

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Go to “GenerateEE”, Load the EIS data just saved
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Load successfully,please check whether all information is correct
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Click“Generate key file”, please wait…

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Key file generated successfully,please save data file

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Go to “Read key”

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Insert new key into CG-MB

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Click read, show related information

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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