Jaguar XF: excessive smoke from the exhaust system

The owner of a 2012 Jaguar XF with a 3.0 diesel engine is complaining about excessive smoke coming out from the exhaust system. Autodata specialists help to clarify this matter.

We have a 2012 Jaguar XF with a 3.0 diesel engine in our workshop, and its owner is complaining about excessive smoke coming out of the exhaust system while driving. We think the turbocharger is damaged, but we don’t want to replace it because it’s expensive. Have you encountered this fault before?

Answer: Based on the described symptoms it seems to us that the failure is connected with damaged inner sealing ring of the second (secondary) turbocharger (biturbo engine). This defect affects several Jaguar models with 3.0 diesel engines. Install a new secondary turbocharger. Clean the oil sludge from turbocharger’s hoses. Install a new turbocharger radiator bypass hose, available in the Jaguar parts department (fig.1.1.). Drive the vehicle at a speed of at least 50 km/h for a maximum of 20 minutes to burn off any residual oil. Accelerate several times to 1500-3500 rpm.