Front Section - AWD And RWD

WARNING: This page is about a different car, the 2020 Jaguar XF and 2019 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.

The front section is similar to both the All Wheel Drive (AWD) and Rear Wheel Drive (RWD) vehicles. The differences are; the shape of the pipes from the catalytic converters to the center silencer differ in shape slightly and the location of the post catalyst Heated Oxygen Sensor (HO2S)'s.

Each catalytic converter of the exhaust front section is joined to an inlet pipe with a flange that is attached to the exhaust manifolds on each bank.

Each catalytic converter is fitted with a mid-catalyst HO2S.

Each outlet pipe of the front section is fitted with a post catalyst HO2S

The mid and post catalyst HO2S's monitor the exhaust gasses leaving the engine. The Engine Control Module (ECM) uses this information to provide accurately metered quantities of fuel to the combustion chambers to ensure the most efficient use of fuel and to minimize the exhaust emissions.