How do you change a headlight socket on a 2000 Volvo V40?

To change the headlight socket on a 2000 Volvo V40, first, disconnect the negative battery terminal to ensure safety. Remove the headlight assembly by unscrewing the retaining screws and pulling it out. Then, disconnect the old socket from the headlight bulb and replace it with a new socket by securing it in place. Reassemble the headlight assembly, reconnect the battery, and test the new socket to ensure it works properly.