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Mercedes W639 with cloned EZS, DAS cannot connect
26-05-2022, 11:07 AM,
Post: #1
YTMercedes  Mercedes W639 with cloned EZS, DAS cannot connect
Hi all, 

I have a friend with a W639 Vito 2006. 
His EZS went bad, would not start, so he took it somewhere to be cloned. 

Now, we cannot connect to the van via DAS. This is with 2014 DAS and a C3 mux which is 100% working on another Vito. 

When trying to connect, there is an applicaiton error and only partial VIN number comes up with first digits corrupted like σ ╙ / WDF639123


Could there be something wrong with the EIS cloning that corrupted the data? The van also has a lot of warning lights on the dash which could be related to coding but we cannot connect with DAS.

Should DAS still be able to connect to other modules even if the EZS is bad?

I would also appreciate some general info on the EZS cloning process, I searched and watched a few videos and saw some cloning EEPROM + flash and some EEPROM only. What is the difference? Does the EEPROM contain the key and ECU sync data and the flash the VIN number and the coding?
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26-05-2022, 13:30 PM,
Post: #2
RE: Mercedes W639 with cloned EZS, DAS cannot connect
Upload eeprom from your ezs
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27-05-2022, 11:25 AM,
Post: #3
RE: Mercedes W639 with cloned EZS, DAS cannot connect
Hi

try to test it on the Bench and see if you can connect to your EZS.

what programm else do you have vvdi mb? cgdi mb? im508/608?
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30-05-2022, 11:52 AM,
Post: #4
RE: Mercedes W639 with cloned EZS, DAS cannot connect
Do you know how that workshop clone the EZS !?
De-solder then do read/write in eeprom writer ?
Or just de-soldering the rom and eeprom then solder to another ??

Obviously it is bad clone, has been written corrupted data, or,
if used de-solder and soldering to move chips, they just damaged the rom or eeprom.

If you have backup copy of EZS data,
program another EZS with MB key tool (all key tool in market should able to do that, process with knowledge).
If you don't have any backup data, the repair and recovery process will be difficult.
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31-05-2022, 21:55 PM,
Post: #5
RE: Mercedes W639 with cloned EZS, DAS cannot connect
The person read the EZS with soldered on wires and transferred to another 2nd hand EZS.
We do have the original but no MB key tools.
I will try to connect direct to the EZS to rule out any wiring problems and report back.
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