Q: How to remove and install headlight housing in Lincoln Town Car?
A: Disconnect the cable from the negative battery terminal for models through 1997. Remove the headlight bulb(s). Push forward on the headlight housing while using snap-ring pliers to spread the retainer clips, then detach the housing and remove it through the grille opening. Use snap-ring pliers to spread the clips, then detach the headlight housing. Insert the housing into the grille opening and press it into place until it seats securely in the retainers. For 1998 and later models, remove the plastic sight shield over the radiator. Pull up the three white plastic pins mounted vertically above each headlight housing. Pull the housing forward and disconnect the electrical connectors. Installation is the reverse of the removal procedure.
Q: How to remove and install a sealed beam or composite bulb-type headlight on Lincoln Town Car?
A: Disconnect cable from negative battery terminal. Remove retaining screws and detach headlight bezel. Carefully remove headlight retainer screws, avoiding adjusting screws. Use Phillips head screwdriver. Remove retainer and pull headlight out enough to disconnect electrical connector. Remove headlight and connector. To install, connect electrical connector, place headlight in position, and install retainer and screws. Place bezel and install retaining screws.Composite bulb-type: Warning: Halogen bulbs are under pressure and may shatter if scratched or dropped. Wear eye protection and handle bulbs carefully, grasping only the base. Avoid touching bulb surface with fingers to prevent overheating. Clean surface with rubbing alcohol if touched. Open hood. Twist plastic retainers and remove sight shield for access to headlight housings. Disconnect cable from negative battery terminal. Remove cover and reach behind headlight assembly. Turn bulb holder counterclockwise to remove. Lift holder assembly for bulb access. On newer models, remove headlight housing for bulb holder access. Release clip and disconnect bulb holder from connector. Insert new bulb into connector until it snaps into place. Install bulb holder in headlight assembly.
A: The headlights must be aimed correctly to avoid accidents and ensure good visibility. They should be checked every 12 months and after any headlight replacement or front end body work. Adjusting screws control the up-and-down and left-and-right movement of the headlights. The simplest method for adjustment requires a blank wall, level floor, and masking tape. Position the tape vertically and horizontally in reference to the vehicle centerline and headlight centerlines. Adjust the low beam so the high intensity zone is two inches below and to the right of the horizontal line. Use the adjusting screws to raise, lower, move left, or move right. For the high beams, the high intensity zone should be vertically centered just below the horizontal line. If a compromise is necessary, prioritize the correct aim for the low beams. Get the headlights adjusted by a professional as soon as possible.