https://epc.startekinfo.com/epc/ free account...
find a post that describes a function you are unfamiliar with, and post a question about it.
no question is too dumb... just ask!
click on the USERCP link at the top of each page, and update the signature line, to show what year and model vehicle you have. also, you have to check the box in the post that says to show your signature. (I fixed your first post)
you've indicated you have a 300TD... is that a station wagon, or are you indicating you have a turbodiesel?