How does the headlight open to service/replace bulb?

Kenneth, you need to give more details on what kind of vehicle, year, make, style and so forth so we can attempt to make a judgment on this.

Well did you try the solution?


Your headlights are an essential safety system for nighttime driving & visibility. If your headlights are not working, or are not aimed properly, you might not be able to see the road clearly.

Here are some suggestions on how to troubleshoot various kinds of headlight problems:

Problem: One headlight does not work

This usually means one of the headlight bulbs has burned out. Bulbs have a limited life that depends on the number of hours of use, and how much vibration they have been subjected to over time. The thin tungsten filament inside an incandescent headlight bulb will eventually burn out. The more nighttime driving you do, the sooner one or both headlights will fail. A typical automotive incandescent headlamp (halogen or regular) has a service life that may range from 600 to as much as 2000 hours of use. For the average motorist who drives 12,000 to 15,000 miles a year, that means replacing a headlight maybe every five or six years depending on how often the headlights are used. Driving on rough roads may cut that life short by causing the delicate filament inside the bulb to fail prematurely.

The Fix: Replace the burned out bulb.

But before you do that, inspect the electrical connector on the back of the headlight carefully for damage, and see that it is not corroded or loose.

The headlight bulbs on most vehicles today are changed from the back of the headlight housing. The housing is a sealed plastic shell with the bulb and socket mounted on the back. The socket that holds the bulb usually twist-locks into the housing. Rotating it counterclockwise about ¼ turn will unlock the tabs and allow you to pull the bulb and socket out of the housing. Access on some vehicles is easy, but on others you may have to remove other components that are in the way, or even remove the housing mounting bolts and remove the housing before you can change the bulb. See your owners manual or the vehicle service literature for detailed instructions on how to replace a headlight bulb.

Once the socket has been removed from the headlight housing, you can pull the old bulb out of the socket and replace it with a new one (must be the same size and style as the original bulb).

Aftermarket replacement bulbs with slightly higher wattage ratings and/or tinting are available to upgrade headlight performance and improve nighttime and bad weather visibility.
best regards,

daid

I ask you did you try the solution posted twice then?

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.

replace the relay and see if it stops, the relay can go like this sometimes and needs replacing. also check the earthing strips from the battery and the shell if it still keeps doing this remove one headlight bulb connection at a time and see if it stop as it could be a faulty bulb.

SOUND LIKE SHORT IN THE TAIL LIGHT BULB SOCKET THAT IS MELTING.REPLACE BULB SOCKET SEE WHAT HAPPENS.

Removal & Installation To Remove:
WARNING
The halogen fog light bulb contains gas under pressure. The bulb may shatter if the glass envelope is scratched or if the bulb is dropped. Handle the bulb only by its base. Avoid touching the glass envelope.
NOTE: The headlight bulb should not be removed from the headlight assembly until just before a replacement bulb is installed. Removing the bulb for an extended period of time may affect headlight bulb performance. Contaminants may enter the headlight assembly where they can settle on the lens and reflector. Never turn on the headlights with the bulb removed.

1. Before servicing the vehicle, refer to the precautions in the beginning of this section. NOTE: Make sure that the headlight switch and the ignition switch are in the OFF position.
   
2. Remove the pin-type retainers, screws and the air deflector from the radiator.
3. Remove the three bolts and the headlight assembly.
4. Disconnect the electrical connector.
5. Remove the cover from the rear of the headlight assembly.
6. If equipped with HID, release the spring tabs to remove the low beam bulb, otherwise disconnect the electrical connector and remove the bulb.
7. Disconnect the electrical connector and remove the high beam bulb.

HID low beam headlight bulb

Standard low beam headlight bulb

High beam headlight bulb

To Install:

1. Place the headlight assembly in the proper position.
2. Install the cover from the rear of the headlight assembly.
3. Connect the electrical connector.
4. Install the three bolts and the headlight assembly.
5. Install the radiator air deflector.

this is not uncommon for these vans. when you install the headlamps be sure not to touch the bulbs with bare hands. use latex gloves. the oil from your hands will diminish the life of the bulbs. when your done with the bulb issue have your charging system checked for an overcharge(anything over about 14.7 volts). if the charging system is in good shape, i would seriously consider the quality of the bulbs. happy holidays

Do you have park,signal lights ,check fuses.

Your charging system appears to be fluctuating. May be time for a new Alternator. OR You have a poor battery connection affecting the alternator.

replacing the headlights is easy. There is no need to adjust the afs, is is automatically done within the vehicle. Changing the bulbs doesn't affect the afs system at all.

The bulbs last forever on my 240s, but they don't last on my '94 850 and '98 XC70. The dash bulbs are hard to fix and the radio bulbs are soldered in. One solution is to always keep the dash lights dimmed about 30% from full brightness, and don't leave the headlights on during daylight. I keep them on but need to replace at least one headlight bulb each year. You could also check the battery voltage with a simple voltmeter just to be sure the voltage regulator is within spec. If the charging voltage is too high, the battery life might also be shortened.