Electric Booster Heater - Overview (G970488): Overview
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.
Vehicles incorporate an electric booster heater to ensure there is sufficient heat available to maintain heater performance.