How do you change the boot light on a Citroen C4 1.6?

To change the boot light on a Citroen C4 1.6, first, open the boot and locate the light casing. Carefully pry the light cover off using a flathead screwdriver or a similar tool, taking care not to damage the surrounding area. Remove the old bulb by twisting it out or pulling it straight out, then insert the new bulb into the socket. Finally, reattach the light cover securely and test the new bulb to ensure it's functioning properly.