CGDI Prog MB Program Mercedes W204 All Key Lost via OBD

Here’s the instruction to program Mercedes Benz C class W204 all keys lost with CGDI Prog MB key programmer.

Main steps:
Calculate password online
Generate key file
Read/Write key

Procedure:
Step 1: Calculate password 

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Go to EIS->Read EIS data to check current key status

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Go to Compute Password->Copy key without key->Collect data->OBD mode
Connect the K-line

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Insert the simulation key into the EIS in 30 seconds
Start collecting data. Don’t disconnect CGDI device

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Collect data success

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Save data

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Save file successfully. Upload the data to calculate password.

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Press Upload Data and select data just saved

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CGDI Prog calculate password success. Copy password.

Step 2: Save EIS data
Go to EIS->Read EIS data

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copy password and paste to key password area

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Then save EIS data

Step 3: Generate key file

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Go to Generate Key File function->Load EIS file

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Upload EIS data saved

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Press Generate key file

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Save key file

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The key file was generated successfully

Step 4: Write key

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Select Read/Write key->Read key/chip
Press Open/Write

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Select a key file (common BE key choose v51 format )

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CGDI MB write W204 key success

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Go to EIS and check EIS data again.
New key was successfully programmed.

Related post:
Program Benz old W164 All Keys Lost with CGDI MB and AC Adapter
W639 All Keys Lost Programming with CGDI MB and AC adapter
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