Td5 fuel pressure regulator leaking diesel
A diesel leak from the regulator at the rear of the cylinder head runs down the engine and looks like an oil leak. Poor original design means the unit is replaced with a new metal gasket.
Discovery · Series II (L318) · 1999–2004
Discovery 2 fuel system
Fuel pumps, injectors, tanks and lines for Land Rover diesel and petrol models.
What is specific to the Discovery 2
Diesel Discovery 2 derivatives use the 2.5 Td5 five-cylinder turbodiesel. Their pumps, injectors and filters are not shared with the petrol engines.
Petrol derivatives use the V8 petrol.
Have this ready when you enquire
- The 17-character VIN from your licence document, which identifies your exact Series II (L318) (sold here 1999–2004) and its build.
- The engine code or number, because this model was sold with the 2.5 Td5 five-cylinder turbodiesel and V8 petrol.
- A photo of the old part or its part number, if you can get to it.
Known Discovery 2 fuel system faults
In-tank diesel fuel pump failure
Poor starting, poor performance or a noisy pump point to the in-tank pump. Diagnosis needs a fuel pressure test, not just a flow check.
Parts commonly needed for the Discovery 2
Td5 engine parts, including injector looms, fuel pressure regulators, head gaskets and cylinder heads, follow close behind. In-tank fuel pumps, cooling system hoses and radiators are common needs on high-mileage vehicles in hot inland climates.
Choose the Discovery 2 part
Discovery 2 fuel system questions
What should I do if I put petrol in my diesel Land Rover?
Do not start the engine. If you have already driven, stop as soon as it is safe and switch off. Have the tank drained and the system flushed. Running a modern diesel on petrol can damage the high-pressure pump and injectors.
How do I bleed air out of my diesel fuel system?
Many modern Land Rovers bleed themselves when the ignition is cycled several times. Older engines may need manual priming. Follow the procedure for your engine, and fix the cause of the air leak.
Fuel System for other Discovery models
Other Discovery 2 systems
The right fuel system for your Discovery 2
Share the VIN and engine number and the SparesBoyz parts team will check fitment before quoting.