Hi
I created this PDF file that covers the Heating Hoses componet parts with the heating hoses flowchart, List, Heating System Operation, Componets Diagram, Parts Catalog with diagrams and part number, and Photos of the Octopus hose maze mnc6733ac (see page 6 in the PDF file).

Here is the weblink to the PDF file:

https://www.dropbox.com/s/71ui8mxn5f...%26%20List.pdf

I would remove the Coolant Expansion Tank to be able the view all of the hoses and the aux heater pump and the water valve.

Here is the weblink to that PDF file - Coolant Expansion Tank R&I

https://www.dropbox.com/s/71ovnenhg2...20%20R%26I.pdf

Jim Lombardi