There is an extensive list for each service level in the handbook for him to follow.
Also, In addition to all of the Greasings and Oil and filter changes, Door Hinge and Cobra Screws often need tightening on our Mog.
Leaf Spring Chain Oil Spraying is worth adding in.
I quite fancy a Factory Service (car not me!) just to see how well they do, but it would probably require an overnight stay.
