I too have found the 2010 T5 Campervan owners manual (OM) useless. It has no information on what the owner needs to buy to maintain service. There is no specification listed. I live in Benissa Spain where there is a VW service agent BUT they advise they are not permitted to service VW VANS. The nearest is over 90Km away therefore it is important that VW provide details of engine oil capacities, gear box oils and capacities. lighting, you have to carry spare lamps by law but what to buy is not found in the OM. I have also found it dificult to find the location of components that need to be changed for a service. Nice van but not information on the 2010 T5.
William B.