How to Replace Fog Lights on a BMW 540I

1. (Optional) Jack up the car and place on jackstands to have better access to the fog lights.
2. Locate the two small pin screws on the upper edge of the grille that runs in between the right and left fog lights. These screws simply slide out, so use the flat head screwdriver to pull them down.
3. Pull the plastic grille out by pivoting it at the bottom. Set the grille aside.
4. The bolts that hold the fog light in should now be visible. Using a 7-mm socket, remove the bolts and set aside.
5. The fog light assembly can now be removed by pivoting it at the bottom and pulling it away from the car. Disconnect the electrical assembly.
6. Repeat for other fog light assembly.
7. To install a new bulb, release the metal loop that goes over the fog light assembly.
8. Disconnect the two rubber electrical boots, noting where they go.
9. The bulb is held in with two wires that are compressed inward, then up and out.
10. Pull out the bulb with needle-nose pliers.
11. Install the new bulb in the proper orientation, being careful not to touch the bulb.
12. Reinstall the housing in the opposite order of disassembly.