Found this, hope it helps;
To remove the 2007 Jaguar S-Type front grille, you need to unlatch the hood, then locate and remove two nuts/bolts at the top rear of the grille assembly. After removing the fasteners, you must unclip the plastic tabs that project from the rear of the grille frame by gently easing them outwards. With the nuts, bolts, and tabs disengaged, the entire grille can be removed from the car