How do you change main beam bulb on citroen Picasso?

To change the main beam bulb on a Citroën Picasso, first, ensure the vehicle is turned off and the keys are removed. Open the bonnet and locate the headlight assembly; you may need to remove the protective cover or access panel. Disconnect the electrical connector from the bulb, twist the bulb holder counterclockwise to release it, and then replace the old bulb with a new one, making sure not to touch the glass. Reassemble everything by reversing the steps and test the headlights to ensure they work properly.