Compare with VVDI MB Tool, How CGDI MB Program W221

This is a process of CGDI MB key tool to program Benz W221. Take VVDI MB Tool as a comparison.You could choose the one you need by their price and performance.

This process will cost 20 minutes in 5 steps.


Step 1: Preparation & ready for 221MTSkey programming
Finish connection of CGDI Porg MB to the laptop and the car

Run CGDI Porg MB software


Step 2: Read and save EIS data
Go to EIS: read EIS and save EIS data


Step 3: Calculate password
Calculate password: collect data
(the car voltage should be more the 11.5V)

Remove the key from EIS, then click on OK

Again remove the key from EIS, then click on OK

Remove the key for 5 seconds, then insert it into EIS, then OK

Put the key into the CGDI Porg MB programmer, then OK

Save data, then upload data to calculate password

Search for the result

Copy the password

Go to EIS: read EIS, paste password, then save data


Step 4: Make key file
Generate EE: load EIS and make key file


Step 5: Write data into the key
Read & write key: read key/chip data, reset, open/write key

Important note:
smart key: format 41, normal key or key from deputy factories: format 51

Write data into the key successfully


Step 6: Check if the key is work or not
Test the key and it’s working


Job’s done!

Reference: VVDI MB BGA TOOL program W221 keys

To add new keys to W221 when it lost all keys, you can do like this:
remove W221 EIS,
get eeprom by programmer (such as VVDI PROG),
then load eeprom to VVDI MB TOOL to prepare key file,
write key and insert to EIS for key learn.

Original post:http://blog.eobdtool.co.uk/how-cgdi-prog-mb-program-w221-as-vvdi-mb-tool/

CGDI BMW Review from mhhauto.com

I just got the CGDI for BMW based on reading good reviews for their Mercedes tool. Have not seen much info for the BMW tool so I thought Id give a quick run down from my experience so far with the tool.

For making keys it has worked great. I have made about 7 keys so far all CAS types except CAS4. 

I tried to read ISN on 3 cars and failed. I think it may only read ISN from MSV80/85 ecu's. Will try on the MSV80 soon and will update. All done by OBD.

I have BMWExplorer and have used Autohex as well, but if you only need to program keys and your not concerned with ISN for DME swaps, I would buy the CGDI before those tools.

Its supposed to do ISN but the advertising wording can be misleading. It may only be able to read ISN of 2 types of DME. So far thats how its looking. Will contact my vendor to verify and see if there is an update preventing ISN reads.

For the money its worth it just to be able to program the CAS3 keys. It works super fast literally less than 2 minutes beginning to end. Faster than BMWExplorer for sure. I have yet to successfully do FEM key with Explorer so as far as Im concerned it has the same key programming capability as the CGDI.

BIG THANKS to macp

(src:http://blog.eobdtool.co.uk/cgdi-prog-bmw-review-src-httpmhhauto-com/)