How to Erase Mercedes W221 EIS and Program New Key with CGDI MB

When we try to program a new key into Mercedes, we find that the all key positions are used.  We need to erase EIS at this time and then program new key.  Here’s the guide to erase W221 EIS and make a new key using CGDI Prog MB key programmer.
Step 1:  Calculate Password and Erase EIS
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Connect CGDI MB with vehicle, choose“EIS”function,click to read EIS data
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Read successfully,CGDI shows all the key positions are used
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Collect data first,compute password
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Default“Other key”,click ok
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
please insert the key into EIS and click OK
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Please insert the key into the CGDI MB device and click ok
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
It is collecting with key,please wait …
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Please insert the key into EIS and click ok
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
please wait patiently for 10 seconds
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
please pull out the key from the EIS, and then click ok
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
please insert the key into the EIS again and click ok
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Pull out the key for 5 seconds, then insert into EIS, then click ok
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
please insert the key into the CGMB device again and click ok
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Collection end,save data,default file name
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Save the file successfully
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Click“Upload data”
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Open the data just saved
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Upload data successfully
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Querying,please wait…
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Computing success,click ok
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Click ‘Copy’
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Go to “EIS”,and copy the password
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Save the EIS data with password successfully
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Get erase password,wait a few seconds,show that calculated successfully
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Click“Wipe the EIS”
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
please insert the simulation key into the EIS in 30 seconds……
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
simulation key physical operation diagram
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Erase the EIS success,click ok
Read EIS data again,show the related information after erasing
Click ”Load EIS Data”
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Open the EIS data just saved
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Click“ Write EIS Data”
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Click ok
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
please insert the simulation key into the EIS in 30 seconds
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
simulation key physical operation diagram
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Write EIS data success
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Read EIS data again,showed as above picture
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Insert the original car key into the lock to learn and start
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Read EIS data again,left origin key position data only,erase key position data successfully
 
Step 2: Program New Key
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Go to “Generate EE”,load EIS file just saved
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Load successfully,please check the information to see whether it is correct
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Click“Generate key file”,please wait…
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
The key file was generated successfully,please save data file
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Go to “Read/write key”
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
please insert the new key into CGDI Prog device
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Click ”read key”,show key information
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Click ”write”,please read the prompt carefully,click ok
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Choose一unused key position data,click and open it
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Write success
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
please insert the new key into EIS to learn,start the car after learning
How to Erase Mercedes W221 EIS and Program New Key with CGDI MB
Read EIS data again,show √.
Program new key successfully.
https://cgdi-mb.blogspot.com/2018/08/cgdi-mb-erase-mercedes-w221-eis-and-program-new-key.html