Low Pressure (LP) 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: HP/LP EGR (GEN 2) system is used from 15.5MY on EU5/EU6 derivatives.

The LP EGR system is used on EU5 and EU6 market vehicles only.

The LP system takes exhaust gases from the exit of the Diesel Particulate Filter (DPF) system, and mixes it with the fresh air from the intake air system into the turbocharger.

The gases are transported from the DPF outlet to the LP EGR cooler via a pipe. The LP cooler has no bypass mode, so only cools.

There is a simple mesh filter fitted before the gases reach the outlet of the cooler that prevents larger particles of soot etc. from entering the turbocharger system.

The cooled gases are then directed through the LP EGR valve.

The valve consists of a tube between the fresh air duct and the turbocharger, with the butterfly valve covering the EGR inlet, in the center bottom of the EGR valve.

The butterfly valve opens into the fresh air stream, promoting both thorough mixing before the gas enters the turbocharger, and also provides 'suction' to drive the LP EGR gas through the system.