If you own a Mercedes-Benz and are looking to do your own repairs you may have heard about Mercedes Star Diagnostic (SD) scanners C3 and C4. In this article, we discuss the advantages of Mercedes Star Diagnostic scanner including things that you need to keep in mind before you buy a MB Star Diagnostic scanner. A list of top alternative scanners to Star Diagnostic is included as well. Note that this article is not written to approve or sell any of the scanners mentioned here including Star Diagnostic Scanner. We share our experience and research of diagnostic scanners and hope to help you the Mercedes-Benz owner who are looking to perform your own MB repairs and diagnostics.