How to use CGDI MB to add Benz Kline W202 W208 W210 Key via OBD?

CGDI MB is confirmed to add Benz Kline W202 W208 W210 Key via OBD (MB 38pin car from 1997 to 1998). In this post, engineer will show the whole procedure.


Here we go for procedure:


Original car key.



New key to be programmed



Calculate Password first.

Connect CGDI MB to the laptop and Mercedes.

Open CGDI MB software



Click on “EIS”, then “Read EIS data”.

Click on “Computer Password”, then “Copy key with key”, then “Collect data”.



Collect data in 8 steps.

1). Insert the original key into EIS and click on “OK”.

This is a k-line EIS, the operation is different from the ordinary EIS.



2).Insert the key into CGDI MB and wait for collection


3).Insert the car key into EIS for 10s and remove.

Turn the key to ON position and turn on dashboard. If failed, pull out the key and try again. Click on OK to continue.


4).Insert the key into EIS

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5). Remove the key for 5s and then insert the key into EIS


6).Insert the key into CGDI MB


7). Save the generated files.

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8).Save the file successfully. Upload the data to calculate password.



Upload data successfully. Press Query Results to calculate pass–done.

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Copy and paste the pass to EIS Key password box and then save it.



Select Generate EE->V051-> Load EIS file.



Upload EIS file just saved–>Press Generate Key File–>The key file was generated successfully.



Go to Read/Write Key->IR —>

read the key/chip



Then Open/Write



For Smart key choose 41 format, for common key and BE key choose 51 format.


Select a key file and write it.



Write key success.



Test the new key. Works good.




CGDI Benz Programmer is perfect to write key add Benz Kline W202 W208 W210 Key via OBD