How do you replace the headlight on a 2010 Audi A4?

To replace the headlight on a 2010 Audi A4, start by opening the hood and locating the headlight assembly. Remove the screws or clips securing the headlight, then gently pull the assembly out. Disconnect the electrical connector and replace the bulb by twisting it counterclockwise. Reassemble by reversing the steps, ensuring everything is securely in place.