just an update. New fuel tank now fitted by Jaguar under warranty. New tank has baffles in it to stop fuel moving about under braking. Problem solved.

Well I'm new to this forum but after owning a 3.0 xf sport r for a month it's going back to the main agents in a couple of weeks to get the wheels painted as the paint is flaking off, windscreen replaced as they repaired it poorly and after some investigation by myself found the fuel in the tank ban...