Catalytic Converter

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.

The oxidizing catalytic converter is located in the front section of the bank 2 inlet pipe, after the pre-catalyst exhaust temperature sensor (vehicles with DPF only) and the Heated Oxygen Sensor (HO2S).

NOTE: On vehicles fitted with DPF: The Pre and Post DPF Temperature Sensors are used by the engine management system to monitor the DPF regeneration purposes.

On vehicles without a DPF, a second catalytic converter is fitted in place of the DPF.

The engine management system provides accurately metered quantities of fuel to the combustion chambers to ensure the most efficient use of fuel and to minimize the exhaust emissions. On vehicles without a DPF, the second catalytic converter is fitted to further reduce the carbon monoxide and the hydrocarbon content of the gases. In the catalytic converter the exhaust gases are passed through honeycombed ceramic elements coated with a special surface treatment called 'washcoat'. The 'washcoat' increases the surface area of the ceramic elements by a factor of approximately 7000. The 'washcoat' is a coating containing platinum and palladium, which are active constituents for converting harmful emissions into inert by-products. The platinum and palladium add oxygen to the carbon monoxide and the hydrocarbons in the exhaust gases, and converts them into carbon dioxide and water respectively.