Description: Volkswagen Vehicle Communication Software Manual, Using This Manual This manual contains instructions for testing Volkswagen and Audi vehicles. Some of the illustrations shown in this manual may contain modules and optional equipment that are not included on your system. Contact a sales representative for availability of other modules and optional equipment…. This manual contains instructions for testing Volkswagen and Audi vehicles. Some of the illustrations shown in this manual may contain modules and optional equipment that are not included on your system.