EGR valve failure
Soot build-up stops the EGR valves working, causing black smoke, loss of power and high fuel use. There are two valves and they usually fail within a short distance of each other.
Discovery · L319 · 2005–2009
Exhaust and emissions parts for Land Rover diesels and petrols, including DPF and EGR components.
Exhaust and emissions parts on the Discovery 3 depend on the engine: the diesels (2.7 TDV6 turbodiesel) use emissions hardware that the petrol engines (V6 petrol and V8 petrol) do not, and manifolds, pipes and sensors differ between them.
Soot build-up stops the EGR valves working, causing black smoke, loss of power and high fuel use. There are two valves and they usually fail within a short distance of each other.
TDV6 owners regularly need EGR valves, intercooler hoses, turbochargers and cooling parts, and a TDV6 with a failed bottom end often becomes a replacement engine enquiry.
The usual causes are a failed gasket at the manifold or downpipe, a split flexi joint, a rusted pipe or silencer, or a loose clamp. A workshop can find the leak quickly with the vehicle on a lift.
Yes. Land Rover exhausts are made in sections, so you can replace just the damaged section. Fit new gaskets, clamps and rubber mounts at the joints you disturb.
For how these parts work and the signs of wear, read the Land Rover exhaust guide.
Share the VIN and engine number and the SparesBoyz parts team will check fitment before quoting.