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W213 EZS213 – NRC 22 on coding (Security Access 0x37/0x39/0x3B)

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xmagun28

(@xmagun28)

Posts: 1

New Member Customer

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Hi!

I have a Mercedes W213 (EZS213 FBS4). When I try to do coding in DTS Monaco I always get NRC 22. The ECU shows security access levels 0x37, 0x39 and 0x3B.

Does anyone know how to solve this on W213? Which seed-key/DLL is required, or is it not possible to do offline?

Posted : August 28, 2025 12:41 pm

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Ezs213

MBAuto

(@mbauto)

Posts: 35

Member Admin

You cannot code FBS4 Offline

Posted : October 28, 2025 3:10 pm

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W213 EZS213 – NRC 22 on coding (Security Access 0x37/0x39/0x3B)

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