Coding W206 and CVN

[mbastucoding]

Can anyone tell me how to code the CVN (Calibration Verification Number) on a W206 and what ECU it is on?

 

[rekrut385]

The CVN is a control number for each individual unit and its associated software. If you change the software number (software version), this number will change. This number will also change if you change even one byte of information in the software file.

 

[mbastucoding]

If you change the coding in HU7 you will have to change this value in HU7, if you change EZS223 you will have to change the value in EZS223, is this correct?

 

[rekrut385]

The CVN is a critical verification number and should change itself when the contents of a file are tampered with. Change the software version in EZS223 and the number will change itself. You can't influence him. This is how the "integrity of the file" is checked. I hope this is the correct answer.