W211 Original Key Hopping Code Repair with CGDI MB Key Programmer

W211 Original Key Hopping Code Repair with CGDI MB Key Programmer

Hopping code: Most of the keys are too fast to be inserted
and removed, and the track code does not roll, resulting in
code hopping, so that the key and the lock cannot be
matched properly.
Use Mercedes monster to repair, the specific operation is as follows:
1. First you need a key password.
2. Calculate the track code of the key.
3. Read the EIS, fill in the password and save the data.
4. Calculate the erase password and erase the it.
5. Load the EIS data with the password.
6. Click “Allow modification of data.”
7. Change the track code of the key position to the track code of the
key.
8. Write data.
9. Learning key
Need to use the tool below:

1. First you need a key password, If there are no keys, you can calculate the
password by doing all key lost.

Calculate password

2.Calculate the track code of the key, click to read the key/chip and read the
current information of the key.

Fill in the password

Click to get the track code

Confirm that the key has been inserted into the device and check that the key
password is correct. The track code calculated by the wrong password is invalid

Key track code calculated successfully

3. Read the EIS, fill in the password and save the data.

EIS data saved successfully

4. Calculate the erase password and erase the lock, let us get the
erase password first.

Erase password successfully calculated

Click to wipe the lock （EIS ）

Please insert the IR adapter into the EIS within 30 seconds.

EIS erased successfully

Read the EIS and see the current state

The EIS has been wiped out

5. Click on the load EIS data saved before with the password.

Loaded successfully

View the key position (key position is 1) and copy the track code

6. Click “Allow data modification”.

7. Modify the track code of the key position to the track code of the key

8. Write the EIS data

It is recommended to write the vehicle identification number first, then write
the lock data.

Please insert the IR adapter into the lock within 30 seconds.

Write lock data successfully

Read lock EIS data to see current lock status

The current EIS is not activated, put the original car key inserted into the lock
to learn, and the lock can be activated.

Insert the key Wait 1-5 seconds, the ELV responds, the EIS
activates successfully, and the key learns successfully.
Click on the read lock (IES) data to view the current lock status.

211 lock original key hopping code repaired successfully

Appendix:
Support the key to read and write, you can directly re-match
K-line EIS do not support this repair method.