For full instructions on how to change the fuel filter on a 2005 VW Jetta, check out the related link.
it is behind the coolant tank at the front right hand side of vehicle under the bonnet
Fuel pump
fuel stop relay
The maximum capacity is 2.5 liters and the minimum is 1.9 liters (depending on the size of the engine for the VW Transporter van.
its in the injestor pump
To drain the fuel from a VW Transporter, start by ensuring the vehicle is parked on a level surface and the engine is off. Locate the fuel line or fuel filter; you may need to release pressure by removing the fuel pump relay or fuse and running the engine until it stalls. Use a siphon pump or disconnect the fuel line at the filter or tank to drain the fuel into a suitable container. Always follow safety precautions, including wearing gloves and working in a well-ventilated area away from flames.
Under the bonnet
t28 best approch to change oil
From 1972 to 1979 the fuel tank capacity was 55l (14.6 US gallon)
From underneath its in front of the left hand side front wheel. From top its below the battery . remove the shroud around battery/ airvent and look down.
The tank capacity of a T4 VW Transporter is 70 Liters.