How do you replace the low beam headlight on a 2003 BMW?

To replace the low beam headlight on a 2003 BMW, first, open the hood and locate the back of the headlight assembly. Disconnect the electrical connector and remove the rubber cover. Twist the headlight bulb socket counterclockwise to release it, then pull out the old bulb and insert the new one, ensuring not to touch the glass. Finally, reassemble the components by reversing the steps and test the new bulb.