I believe I read on this forum there was a way to push different buttons to get the codes you are referring to? Could you please tell me how to do so, and also where the part you are referring to would be located in the car. My estimation is that it is behind the dash located centrally and a little to the passenger side (if I read other posts correctly)

Sorry, this is my first mercedes and I absolutely love my car, just want it to work right.