High Pressure (Hp) Exhaust Gas RECIRCULATION System

WARNING: This page is about a different car, the 2018 Land Rover Range Rover, 2017 Land Rover Range Rover, and 2016 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Twin HP EGR (GEN 1.5) system at 16MY is used on EU4/RoW derivatives.

The HP EGR valve is attached to the intake manifold. Exhaust gases are routed to the EGR valve from the exhaust manifold.

The EGR valve is cooled using engine coolant in the vehicle interior heating circuit; this is to protect the electrical components from over-heating.

The EGR valve controls the amount of EGR exhaust gas flow depending on the ECM map.

The exhaust gases are passed directly into the intake manifold via a simple EGR pipe on EU5 and EU6 market vehicles.

The design of the EGR pipe attachment to the inlet manifold helps mix the exhaust gases with the main fresh air from the intake air system and also insulates the plastic intake manifold from the hot EGR pipe.

On EU4 market vehicles, a separate EGR pipe attachment is used to connect between the intake manifold and the EGR cooler.