Before we focus specifically on version 4.9.1, it is crucial to understand the parent application. is the official electronic parts catalog (EPC) and diagnostic documentation system used by Renault dealerships worldwide. Unlike generic OBD2 scanners that only read engine codes, Dialogys provides:
Enter the 17-digit Vehicle Identification Number to see exact parts for your specific car. Visual Diagrams:
Bookmark this guide. Download the software (carefully) from a trusted source. And the next time you face a Renault BSI failure or a mysterious whistling noise from a Duster rear axle, you will have the entire factory knowledge at your fingertips.