Once your E6X runs, make it look the part:

The E6X is a heavy mod. If your PC is struggling, do not despair. Here is a "performance conscious" setup:

Search for “Citaro E6 repaint” on the Omsi forum or Fellowship of Omsi Facebook groups.

Use WinRAR or 7-Zip to open the downloaded archive.

Fully functional VDV dashboards with digital displays that show route info, temperature, and engine diagnostics.

The most common high-quality version is the by Alternate Software (often found on their official website or via their forum thread on omnibussimulator.de ).