Exhaust Pipe And Silencer

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

The exhaust pipe and silencer directs exhaust combustion gases to atmosphere below the vehicle. Exhaust vapor may be visible when the Fuel Fired Booster Heater (FFBH) is running, depending on atmospheric conditions. Under normal operating conditions, the exhaust vapor will subside once the FFBH has achieved 'Power status' and the exhaust pipe has reached normal operating temperature.

Under certain circumstances, for example after heater replacement or the disconnection of the fuel or coolant circuits, smoke may be visible from the general vicinity of the heater rather than the outlet of the exhaust. This may be as a result of residual fuel or coolant on the exhaust or heater body as a result of the service procedure. Under these circumstances, the heater must be run continually for 15-20 minutes until there are no signs of excessive smoke.