How o you change number plate bulb on a citroen c5 estate?

To change the number plate bulb on a Citroën C5 Estate, first, open the rear hatch and locate the number plate light assembly. Use a flathead screwdriver or a similar tool to gently pry the light cover off. Remove the old bulb by twisting it counterclockwise, then insert the new bulb and reassemble the cover. Finally, test the light to ensure it's working properly.