Oil & Filter on your car can be Flexible / Variable and 16,600 miles might not even have some cars having had an Oil Change.

 

There are no Mandatory Service Times / Miles for changing Air, Pollen and Fuel Filters, it is Service Schedule Guidelines of at Major Services for Pollen Filter,  (2 yearly as it was when Servicing was 9,400 miles /372 Days, Minor, Major rime about.)

and it is 40,000 Miles on the Spark Plugs and Skoda / VW never changed that but many have 1 Spark Plug failing before half that.

So in a way after looking at those figures, me not looking at it and taking the attitude that they are the experts and should be advising me isn't possibly a bad way of looking at it.

Thank you for the help and information