What is the charge for answering questions?? Manual tells how to replace headlight bulb on a 2005 Lincoln town car but doesn't tell how to get to the bulb. From the back(by removing battery)from the front? Or from the top by removing whole assembly?

You have to remove the headlight assembly
https://www.youtube.com/watch?v=kyWB01NQoxY

I've done it so many times for exact 2006 TC.

1. Remove black plastic cover if it's equipped by twisting 5 fashioners.

Those are looked like screws but plastic fashioners.

2. Remove 3 screws (two on top one on bottom) Do not touch adjuster screw.

3. push down plastic hook between two top screws and pull whole assy. be careful not to make scratch on bumper.

Remove wire connector before you pull it out completely.

4. After you remove assy, take 6~8 screws on back cover, then you will see light valves.

I have problem to upload pictures now.

I will upload them as comment to myself.

The procedure may be in your owners manual. The bulb comes out of the back of the headlamp housing from under the hood.

look inside owners manual in glove compartment look up bulb replacement in the back index it will show and tell you how to replace headlight bulbs. be sure to wear clean gloves, because headlight bulbs or halogen type bulbs, if oil from hands or skin touch the halogen bulb it will cause halogen light bulb overheat and blow out.you can go by auto parts store when you buy new headlight bulb the salesperson will go out to vechicle and replace headlight bulb for you wont charge you any thing.just charge you for the headlight bulb.

1. Remove the three pin-type retainers, two screws and the radiator defector.
2. Remove the 4 bolts securing the headlamp assembly and remove headlamp assembly.
- Disconnect electrical connector
3. Remove the 3 hex-head bolts and 2 torx-head screws and remove headlamp protective cover.
4. *****Standard low-beam bulb*****
Disconnect the connector from the bulb and remove the low beam bulb.
5. *****HID low beam bulb*****
Release the spring tabs and remove the HID low beam bulb
Disconnect the connector from the bulb
6. *****High beam bulb*****
Disconnect the electrical connector and remove the high beam bulb.
Reverse order to install

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To replace the headlights, you must first remove the trim ring around the headlight. There should be three or four screws holding it in place. Once the trim ring is removed, there will be four screws, two at the top and two on the bottom. Carefully remove screws and remove the retaining ring. Gently pull bulb out, unplug the wire connector. With new bulb in hand, carefully connect the wiring to back of bulb and carefully set in place. While holding the bulb in place, set retaining ring back in place over bulb and insert screws. Then replace the trim ring, tighten the screws and you are done.

It has several plastic tabs/inserts that push down from the top. pull up on each one and remove. then the housing should be free

Open up your hood,
Reach behind headlight.
Find the black or grey plastic ring that holds on bulb and harness.
Turn counter clockwise to loosen and remove the plastic ring.
Then grab bulb, turn and pull out bulb and harness. Harness has a little clip that can be pried up and then you can remove bulb.
Reverse procedure to replace.

You can go to autozone.com and register for full free online repair manual for your car.

open trunk. remove carpet. covering lights. turn bulb socket counterclockwise quarter turn to remove and pull out socket.

check for voltage in the socket. positive is the center connection. if you have no voltage there, then you may be right. Make sure that you check the wires.