CGDI Prog MB Program Mercedes-Benz W207 All Keys Lost

Purpose: To program a new key for Benz W207 (AKL) by CGDI prog MB.

Preparation:

EIS: Mercedes-Benz W207
Car key: Original Benz key, blank key
Device: CGDI Prog MB Mercedes-Benz key programmer

Firstly, check the original key can use or not
The original key cannot unlock the ELV

Plug the original key into CGDI prog MB

Read EIS- OK

Read ELV- OK

Read key- cannot read

Use the new key to read key data successfully


It indicates that the original key is broken.

Procedure: 
Step 1: Calculate password
Step 2: Save EIS Data
Step 3: Generate Key File
Step 4: Read/write the key

Let’s go one by one.

Step 1: Calculate password 
Connect CGDI MB key programmer to EIS well
Plug the BE key into CGDI MB device

Click on “Compute Password”->“Copy key without key”-> “Collect Data”
Select “OBD Mode”, and press “OK”

Follow the prompt to remove the plug on ELV, and connect the OBD yellow line with K line on the ELV (K line is the thinnest cable on the ELV plug)


Then insert the simulated key into the EIS within 30 seconds, and click “OK”


It will take about 2 minutes to collect
Save the data collected

Save the file successfully. Please upload the data to calculate password


Step 2: Save EIS Data
Click on “Upload data”
Select the file just saved to upload

PASSWORD computing success
Click on “Query result”
Copy the key password to backup

Go to “EIS”-> “Save EIS Data”
Save the file successfully


Step 3: Generate Key File
Select “Generate Key File”->“Load EIS File”
Open the EIS data files saved
Remove the mark of key1 and key2
Then click on “Generate Key File”

The key file was generated successfully


Step 4: Read/write the key
Take out the original key from CGDI Prog MB
And plug the BE key
Select “Read/write Key”-> “Read key/Chip”
Read success

Click on “Reset”
Reset success!

Note: Smart key please choose 41 format, common key and BE key please choose 51 format!
When wiring the original key, please make sure that it is wiped by the CGMB, otherwise the write will fail!
Then click “OK”

Select one 51 format file to write data

CGDI MB key programmer write BE key success

Read the key again
The system shows the BE key is unused

Insert the BE key into EIS/ELV to learn automatically
It can use normally


Click on “Read Key/Chip” to read the key status again
The key is used now

Select “EIS” to read EIS data
The key3 added has been used

Result: CGDI MB Benz key programmer add new key to Mercedes-Benz W207 AKL success!

Done!
Source:http://blog.obdiitool.co.uk/cgdi-prog-mb-program-benz-w207-all-keys-lost/