W177 SRS ECU Replacement

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  • Thread starterBMGarage
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BMGarage
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Does anyone have experience replacing SRS ECU ORC_177 in latest MB models (177/247)? The old one is broken. I have a used ECU with the same part number. I did a reflash, coding, but the ECU gives an error about the wrong VIN number. Do you have any suggestions on how to clear the trouble code? There is no option to change the VIN in DTS Monaco.
 
Voltage of the on-board network is NORMAL, IGN ON, EZS... access 3B, ORC177... The 1st level of access is open, the block is unlocked, transferring codings from the old one or from the donor, the VIN itself will be picked up, but it can also be written, after Write_Key_nummer_Start and then ECU_Lock. That's all. The donor block will have an error in the access authorization data (not valid). This is done through DTS Monaco.
 

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