How to Replace a Headlight on the Mercedes S430

1. Turn off your Mercedes S430 and prop open the hood.
2. Remove the two bolts holding the lower grille in place and pull the grille out of the front of the car.
3. Remove the two bolts on the section of the bumper revealed when you took off the grille.
4. Remove the screw on the trim of the front arch wheel well that holds the side fender in place. Do this for both wheel wells.
5. Remove the screw locking the mounting clip in the wheel well that holds the bumper and fender together. Do this for both wheel wells.
6. Pull out the long, flat mounting clip that was secured by the screw you just removed.
7. Pull the bumper slightly away from the vehicle.
8. Remove the two top bolts holding the headlight in place.
9. Detach the wiring harness from the rear of the headlight and pull the headlight out of its cavity. Pull the bumper farther away from the firewall if you need more room to release the headlight.
10. Insert the new headlight in the headlight cavity and push the bumper back into place. Remount the two headlight bolts. Reinstall the bolts, screws, and clips you removed that held the bumper and grille secure.