Hope this will help you in your search. Coachmen RV is good about keeping all there owners MANUALS on their website.
CoachmenRV.com Once on the Coachmen RV website LOOK UP to the top right for OWNERS Manuals. I did check out the link, you provided, so it may have sold. But checking out the Coachmen Web will help you to know better what you're looking for.
2021 Mercedes-Benz Sprinter Van, showing six tires down, 3400XD, V6, 7-Speed Automatic 24FL, 170-WB, 24'-3", Coachmen Galleria w/Li3, "Next ROAD TRIP" to where?