Front Section

WARNING: This page is about a different car, the 2015 Jaguar XF, 2014 Jaguar XF, and 2013 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.

The front section has an inlet flange which mates with the turbocharger outlet. The flange is sealed to the turbocharger with a gasket and secured with three bolts which screw into the turbocharger housing. An elbow from the flange contains a threaded boss for the installation of the front (upstream) HO2S. A bracket welded to the elbow allows for the attachment of a second bracket which secures the front section to the Power Transfer Unit (PTU). The flexible coupling is connected to the pre-catalyst which in turn is connected by a curved pipe to a flange which mates with the center section and the main catalyst. The curved pipe contains a threaded boss for the installation of the rear (downstream) HO2S. A hanger bar with two rubber mountings is connected to a common bracket, which in turn bolts to the rear of the front sub-frame to support the system.

The rear section has a long pipe which is secured to the center section with a clamp. Within this section of pipe, there is a flexible coupling, downstream of the Mass Damper. A hanger bar, mounting rubber and bracket secure the forward end of the pipe to the vehicle body. The pipe is routed in a central position under the vehicle, with a slight deviation around the rear differential, where it joins with the rear silencers. The rear silencers are supported by rubber mountings.