How to Replace a Fuel Filter on a Land Rover Discovery by Dan Ferrell Tata Motors recommends replacing the fuel filter in your Land Rover Discovery every 12,000 miles (19,312 km) or 12 months. Small particles clog the filter element after prolonged service, reducing fuel pressure and flow to the fuel injectors, eventually affecting engine performance. Land Rover Discovery Fuel Filter | Auto Parts Warehouse Welcome car repair expert! You've come to the right place to get affordable quality Fuel Filters for your Land Rover Discovery. Not an auto repair expert? That's not a problem. We've worked hard over 11 years designing a website experience that makes it easy for anyone to idenify whether parts fit their car.