Also the VW IDI's don't have a lift pump. The Bosch IP pulls from the tank, through the water separator and filter. I think the reason the trucks get a lift pump is the distance the fuel has to travel. Both horizontal and vertical. My Jetta is maybe 6 feet from tank to pump and only a few inches vertical between the tank and pump. On a truck the front tank is at least 10 feet from the IP and maybe 12 to 18 inches vertical. The rear tank on a Crew Cab is a long way from the IP.