How do i change sidelight on peugeot 406?

To change the sidelight on a Peugeot 406, first, open the hood and locate the back of the headlight assembly. Carefully twist and remove the bulb holder from the assembly, then pull out the old sidelight bulb. Insert the new bulb into the holder, ensuring it's secure, and reattach the holder back into the headlight assembly. Finally, test the sidelight to ensure it’s functioning properly.