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You have not performed this crucial step. First of all, it is required by law you may also be fined if SCN coding is required for a number of reasons. All these systems require the network authorization from the Mercedes-Benz Technical Service Centerįor the completion of the process. These systems include SRS airbag computer, 722.9 gearbox computer replacement, Gearbox module, SAMĬomputer, ABS, ESP control unit, the COMAND system, intelligent headlight computer instrumentation, and ME modules,Īmong others. In a majority of the systems in Mercedes Benz, SCN coding is required after the SCN coding is required to update the software when a new Electronic Transmission Controller (ETC) or fuelĬontrol unit (ME) is installed. Why all work on your Mercedes should be done by a technician who is SCN certified. Problem because only certified technicians can access the Mercedes-Benz server. Unauthorized technicians can not fix this Your ME Control Unit and that SCN coding is needed to resolve the issue. Why is this important?īecause if you are experiencing trouble with your transmission, there is a good chance that the problem is with Provide Software Calibration Number (SCN) Coding. G & N Motors is one of only independent Mercedes-Benz service centers that is certified by Mercedes to SCN Coding Services for ME Control Unit “ Long story short, they basicallyįound the one problem with my Mercedes, fixed it, and everything now is perfect." – Judy, Online G&N Motors Inc: Mercedes Technicians > Mercedes Service > MBZ Transmission Service > SCN Coding for ME Control Unit