during the scenario which gives you an experience on re-fueling locomotives. The fuel pump seems to be in a bit of a tangling mess and the last or next unit to service, the DMU I can't even get the fuel hose in the fuel tank, stalling the scenario. As you approach the fuel cap for the DMU the fuel hose head dissapears back to the stand, its' within range as well. Affected Locomotives, BR 3636 and BR 642 DMU
There is a way but that's up to you how you want to move around. Eventually I was able to get it in the fuel tank. You don't want to move too quickly. Take small steps