Looking at a 2007 Itasca Navion M-23H-Sprinter Diesel

Your unit looks very much like our View. Your TV appears to be on the right side facing out but ours is rear of dinette placed at an angle, as I see the brochure.

Floor plan otherwise looks the same to me. Sprinters are either loved or hated. I do all my own service. we have the 6-cyl turbo diesel frome Mercedes-Benz but the mascot is a Dodge.

M-B has a lot of specifications regarding oil and such that you must observe or risk denial of warrantee.

List of M-B specs