MBAutoCode Forum - Recent Posts https://www.mbautocode.co.uk/community/ MBAutoCode Discussion Board en-US Tue, 14 Apr 2026 22:08:21 +0000 wpForo 60 RE: W213 EZS213 – NRC 22 on coding (Security Access 0x37/0x39/0x3B) https://www.mbautocode.co.uk/community/general-help-and-support/w213-ezs213-nrc-22-on-coding-security-access-0x37-0x39-0x3b/#post-51 Tue, 28 Oct 2025 15:10:07 +0000 You cannot code FBS4 Offline

]]> MBAuto https://www.mbautocode.co.uk/community/general-help-and-support/w213-ezs213-nrc-22-on-coding-security-access-0x37-0x39-0x3b/#post-51 W213 EZS213 – NRC 22 on coding (Security Access 0x37/0x39/0x3B) https://www.mbautocode.co.uk/community/general-help-and-support/w213-ezs213-nrc-22-on-coding-security-access-0x37-0x39-0x3b/#post-50 Thu, 28 Aug 2025 12:41:26 +0000 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?

]]> xmagun28 https://www.mbautocode.co.uk/community/general-help-and-support/w213-ezs213-nrc-22-on-coding-security-access-0x37-0x39-0x3b/#post-50