Fuel Tank and Lines: Overview

WARNING: This page is about a different car, the 2018 Land Rover Discovery and 2017 Land Rover Discovery. However, it is still accessible from the selected car via links, so may be relevant.

The fuel delivery system incorporates a Low Pressure (LP) and High Pressure (HP) circuits to provide the engine with sufficient fuel for all operating conditions.

The LP fuel system features the following components:

Molded plastic saddle type fuel tank
Fuel pump module (with integral in-tank pump)
Two fuel level sensors
Fuel delivery and return lines
Fuel filter assembly
Fuel cooler.

The LP fuel pump is located in the bottom of the fuel tank assembly. The LP fuel pump has a Direct Current (DC) electric motor and is operated by the LP fuel pump relay. The LP fuel pump relay is controlled by the Body Control Module/Gateway Module (BCM/GWM) assembly. The LP fuel pump is responsible for drawing fuel from the fuel tank and delivering it to the HP fuel pump. The HP fuel pump is mounted on the engine.

The HP fuel system features a Bosch 'Direct Injection (DI)', HP system. For additional information, refer to: FUEL CHARGING & CONTROLS - TURBOCHARGER - TDV6 3.0L DIESEL -- DISCOVERY/L462 .

The LP fuel pump also supplies fuel to the two jet pumps on either side of the fuel tank. Thereby the LP fuel pump provides sufficient fuel in the swirl pot.

Depending on vehicle configuration, vehicles can be equipped with a Fuel Fired Booster Heater (FFBH). The FFBH fuel pump is mounted on the right side of the fuel tank. A separate fuel line draws fuel from the fuel pump module to the FFBH fuel pump. An additional fuel line delivers the fuel to the FFBH in the engine compartment. For additional information, refer to: FUEL FIRED BOOSTER HEATER .