Mercedes S430 ETC SCN coding with SD Connect C4

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Mercedes S430 ETC SCN coding with SD Connect C4

This is a customer feedback working SCN coding on Mercedes S430 ETC with MB Star diagnostic SD Connect C4 diagnostic system.

Mercedes model:
Mercedes S430 Elongated (220.170)

Device to use:
Dell laptop D630
MB SD Connect C4


ETC SCN coding procedure:

Enter user ID and password to log in.


Communication with control unit EGS2…


Data are being determined…
The coding is carried out…


Data are being determined…
Wait 3 seconds…


Switch ignition off


Wait 5 seconds…
Switch on ignition
Control module reset, please wait…
CVN The value is calculated internally by the control unit
Wait 100 seconds…


Data are being determined…
Documentation for repair order WDBNG70J25A457136
The SCN coding sequence has been completed successfully.


Click YES to close the file without making a printout.
Data are being determined…
Communication with control unit ETC…


Go to SCN coding


Select Fault codes


No fault code present



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MB Star DAS and Vediamo program Smart 450 SAM unit

I’ve just got Vediamo V4 up and running for a Smart 450 Cabrio with a dead SAM unit, to virginize (Or at least reset) a 2nd hand SAM unit and program it in.
However, vediamo no make virgin this unit for smart
And i was told to make virgin by eeprom dump and make initial startup with Xentry/DAS, and also put the Sam and start the car ..but to change the vin only EPROM and km …
I have access to a eeprom reader so can do that with a SAM but I’m struggling to find a virgin SAM backup. (have found the one for the MEG at the back but not one for the SAM)

But i found it would not help because by coding with Benz diagnostic tool i have to enter the SCN Coding Chucksum. Only official smart service can get this number. A smart owner said it worked only by coding the meg and dssh to the 2nd used sam unit. So yes, only a open DAS and the right vin.

Password may be required in official dealer for matching a new key to a control sam used

So i use the non password fix for DAS to get it, I’m sure the SAM unit will take any 3 button key you throw at it (unless it was a 1 button early MCC)

Ps. The fix from

Not for coding a new set of blank keys into SAM, just go into
SAM Unit –> Adaptations –> Bottom of the list should be Special Function: Reprogram keys if no keys available

It does require a password unless you have the No Password fix, I did this the other day on DAS 04.2014 with 2 new keys (No originals)

The fix bypasses the password requirement (Just press F2 twice)