This article is to share my experience with using CGDI prog MB to program new key to Benz GL440.
Here you go!
Firstly, I connect cgdi mb to my GL440 via OBD, and connect cgdi mb to PC by usb.
My car is one-click start, it cannot program new key. So I take out the one-click start button and insert the smart car key.
When I open CGMB software, it prompts “Error downloading update profile, please check network connection".
I try to connect by my smart phone spot.
Good! The network is connected successfully.
Now I start to program my car key.
The detailed operation steps as below
Step 1: Collect EIS Data
Step 2: Calculate password
Step 3: Generate key
Step 4: Write new key
Step 5: Test new key
In detail…
Step 1: Collect EIS Data
Insert the original gl440 car key to CGDI MB device to read key info
Return to CGDI MB software
Select “Read/ Write Key”-> “Infrared”-> “Read Key/ Chip”
It shows this key is on position 3, no used!
At this time, need to read EIS data to confirm whether the original can match or not.
Select “EIS”–>”Read EIS Data” to display key info
The key can program new key.
Click “Compute Password”–>”Copy key with key” –> “Collect Data”
Follow the prompt to select other key mode, and then click “OK”
Insert the original key into EIS and click “OK”
Note: Insert the key, no need to twist it
Then insert the original key into CGDI MB device, and click “OK”
It will take about 3 minutes to collect data
EIS data is collected successfully
Insert the original key into EIS again and click “OK”
Wait for 10s, and take out the key
Insert the original car key into EIS again
Take out the key for 5s, and insert into EIS again
Insert the original key into CGDI MB coil again
Click “OK” to collect data
Collecting data is complete and save data to desktop
Save file successfully
Click “Upload Data” and open the file saved just now to upload
Upload the data successfully
Step 2: Calculate password
Click “Query Result” to calculate password
This procedure needs about 2 minutes
Computing success
Copy the password calculated to desktop to backup
Click “EIS”-> Paste the password-> “Save EIS Data”
Step 3: Generate key
Select “Generate EE”-> Remove the tick mark of key 3
Click “Load EIS file” to check EIS data information
The EIS file includes SSID, key password and VIN
Confirm the key password is correct
Click “Generate key file”
It takes 1 minute to generate
Save the file to desktop
Generate successfully
Step 4: Write new key
Put the new key into cgdi rog mb to read info
Select “Read/ Write Key”-> “Infrared”-> “Read Key/ Chip”
It shows this new is not used
Click “Reset” to erase the key data
Note: Regardless of the key is used or not, please remember to erase the data, otherwise will be failed to write
Reset operation succeed
Click “Open/Write” button
Note: Smart key please choose 41 format, common key and BE key please choose 51 format! When writing the original key, please make sure that it is wiped by the CGMB, otherwise the write will fail!
Choose one key unused file to write
Write success
Click “Read key/ chip” to confirm whether the key is written successfully or not
Step 5: Test new key
Finish all the steps above. The last step is to test the new key.
Insert the new key into EIS to learn automatically
Light up the instrument- OK
Remote the window- OK
Turn on ignition switch- OK
CGDI prog MB program Benz GL440 smart key successfully
Hope can help you out! Enjoy!
