SOLVED: Where is the fuel filter located on a Jaguar xj8 Feb 14, 2015The fuel filter is located above the rear axle on the driver's side. The easiest way to replace it is to break the fuel line nut loose on the side nearest the wheel and screw it all the way off (you may have a small amount of gasoline come out of the filter, so have a container handy). Fuel Filter Location: Location of Fuel Filter Please? Location of fuel filter please? Reply 1: Hello, Here is a guide to show you what you are in for when changing the fuel filter and the diagrams REPAIR GUIDES. BECOME A MEMBER. Sign up with Facebook. OR. I agree to the user agreement. 1999 Jaguar Xj8 Fuel Tank Wont Refuel.