This is a major point of contention among mechanics. Around 2015-2016, Bosch switched to a new format for wiring diagrams.
To fully license and utilize ESI[tronic] during this era, both DVD stages were required. Skipping DVD2 would leave the workshop with a "lite" version lacking the latest manufacturer-specific data required for modern vehicles. mediathek-bosch-automotive.com bosch esitronic 20111 dvd2 better
: This update includes data for vehicles from roughly 150 makes, covering over 90,000 unique vehicle models. This is a major point of contention among mechanics