2003 Mercury Grand Marquis Owner Guide 4th Printing - Page 59

Lights 3. Disconnect the electrical connector. 4. Remove the headlamp retainer bolts and the headlamp assembly. 5. Remove the headlamp bulb protective cover. 6. Remove the bulb retaining ring by rotating it counterclockwise to free it from the bulb socket and slide the ring off of the plastic base. Keep the ring to retain the new bulb. 7. Disconnect the electrical connector from the bulb. 8. To install, reverse the removal procedure. (Re-aiming the headlamps may be necessary. For additional information refer to the headlamp aiming section of the owner's guide.) Handle a halogen headlamp bulb carefully and keep out of children's reach. Grasp the bulb only by its plastic base and do not touch the glass. The oil from your hand could cause the bulb to break the next time the headlamps are operated. NOTE: If the bulb is accidentally touched, it should be cleaned with rubbing alcohol before being used. Note: The headlamp bulb should not be removed from the headlamp until just before a replacement bulb is installed. Removing the bulb for an extended period of time may affect headlamp bulb performance. Contaminants may enter the headlamp where they can settle on the lens and reflector. Never turn the headlamps on with the bulb removed. Replacing front parking lamp/turn signal bulbs The park/turn lamp bulbs can be replaced with out removing the headlamp assembly. 59 2003 Grand Marquis (grn) Owners Guide (post-2002-fmt) USA English (fus)