When replacing a bulb, switch off all exterior lights and be cautious of hot bulbs. Check the bulb contacts and holder for clean metal-to-metal contact, cleaning off any corrosion or dirt before installation. Ensure bayonet-type bulbs have firm contact against the terminals and that new bulbs are of the correct rating and clean, especially for headlights and fog lights. Avoid touching halogen bulb glass with fingers to prevent overheating; if touched, clean with rubbing alcohol. For 2007 and earlier models, release the clip at the rear of the headlight unit to access the bulb, disconnect the wiring plug, and remove the bulb by releasing the wire clip. For 2008 and later models, if working on the left bulb of a non-PZEV vehicle, remove the air cleaner; for the right-side bulb, unbolt the coolant expansion tank. Disconnect the wiring, turn the bulb counterclockwise, and remove it. Installation of the new bulb follows the reverse procedure, and headlight beam alignment should be checked. The park light bulb is also accessed similarly. For front sidelights, access may vary by model, with some located in the front fender or bumper cover. For front turn signals, remove the screw from the indicator unit, withdraw the light unit, and twist the bulb holder to remove the bulb. Side repeaters require sliding the assembly downwards and disconnecting the bulb holder. For front fog lights, remove the splash shield, disconnect the wiring, and release the wire clip to take out the bulb. For rear fog lights and backup lights, remove the rear light unit, turn the bulb holder counterclockwise, and twist the bulb to remove it. The rear light cluster requires removing securing nuts and screws, carefully separating the bulb holder, and twisting to release the bulb. License plate lights involve prying out the assembly or removing lens screws, while high-mount brake lights on 2007 and earlier models require unscrewing the light cover and unclipping the bulb holder, whereas 2008 and later models use a non-replaceable LED unit that must be replaced as an assembly.
Posted by FordPartsGiant Specialist 
