How to Replace a BMW E39 Headlight Bulb


1. Open the hood and remove the electrical connector running to the back of the headlight ballast.
2. Turn the headlight bulb counterclockwise with your hand to unlock the bulb.
3. Pull the bulb out of the housing.
4. Insert the new bulb into the headlight housing, and align the tabs on the bulb with the notches on the housing.
5. Turn the bulb clockwise to lock it into the housing.
6. Reconnect the electrical connector to the back of the headlight bulb ballast.