CGDI MB Program Mercedes Benz old W164 EZS All Keys Lost

Guide: add key to the Mercedes Benz old (A1645450909) EZS W164 when all keys lost using CGDI Prog MB key programmer. With the CGDI MB AC adapter, the data acquisition procedure can be shorten to 9 minutes.


W164 EZS Old A1645450909


CGDI AC Adapter is necessary to faster calculate key password.

Credit to Mr. Edward Markin.

Step 1:  Calculate password

Connect AC Adapter with CGDI MB

Open CGDI MB Software


Read EIS data

Go to Compute Password->Copy Key without Key ->Collect Data-> Platform mode


Check old W164 wiring diagram

Insert the simulation key within 1 minutes.
Turn the quick collect adapter (AC adapter) switch to the platform position. Turn the key
to the ignition switch to ON position.


If CGDI prompts data acquisition failure.  Try again.

If still fail to read ezs data, to rotate the simulation key, you need not knock on the EZS


EZS data collection begins


Data collection success after 9 minutes

Save data


Upload the data to calculate password


Press Query Result


Calculate password success

Go to EIS function, paste password to Key password area

Read EIS data again




We read the data from the EZS with a password and save.

Step 2: Generate EE

Generate key dumps from the created EZS file




Generate Key File



Generate key file success and save it

Step 3:  Write Key

Go to Read/Write Key

Insert key into CGDI MB detection coil


Read key/chip


Reset key

cgdi-mb-w164-all-key-lost-24 cgdi-mb-w164-all-key-lost-25

Insert new key into EZS, the erased key does not accept the lock


Write the key and check its work

Go to Open/Write Key


Select a key position


Write key success


Now the new key works perfectly.

In general, at the moment CGDI MB is the best device for the money!!!

How to connect CGDI MB to w164 EIS on bench

Looking for the wiring diagram that CGDI Prog MB connects to w164 EIS on bench? read this post.


my cgdi mb can’t connect to w164 EIS on bench – I have got gateway emulator but need to make proper cable for it, could You help me with wiring diagram ? – I know that aliexpress has got nice kit of cables but can’t wait a month or so for delivery.

I have got XHORSE Power ADAPTER with direct cable for W164, but it doesn’t work with CGDI – I noticed that this adapter doesn’t allow to pass power and data when connected between cgdi and w164 EIS, seems to be useless for CGDI owners for now. That’s why I decided to connect ordinary gateway emulator but need connection diagram to build a cable.

here you go for  wiring diagram that CGDI MB connects to W164


Finally, data gathered with success!!!!

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In summary,

1). CGDI PROG MB can add a key to Mercedes-Benz faster than other VVDI MB key programmer:

data acquisition/collection time: 1’50s

password calculation time: 40s

99% success get password for one time calculator

it is the fastest key programming tool to calculate the password at present.
2). program a new key when MB lost all keys:

support models including 211,209,204,207,212,166,246,197,172,164 +, 216

3). Free 2 tokens to calculate the password each day

4). work as good as VVDI MB TOOL, but have a better price.